Ponniah Ravindran

Researcher

Academic Interests

Electronic structure studies on solids using state-of the-art density functional methods.

   General Interest

  • Nanophase materials
  • Hydrogen Storage Materials
  • Solar Energy Materials including Tranparent conducting oxides
  • Defects in semiconductors
  • Linear, nonlinear optical properties and other Excited State properties
  • Magneto-optical and Magneto-caloric materials.
  • Magnetic properties, Magnetic anisotropy, Spin, Charge and Orbital ordering
  • Multi-ferroic and other multifunctional materials
  • Structural Phase Stability and High Pressure studies
  • Theory of Alloy Formation
  • Mechanical properties of structural/aerospace engineering materials Superconductivity and  phonons
  • Catalytic Material
Tags: SMN, Inorganic materials chemistry

Publications

  • Kruthika, G. & Ponniah, Ravindran (2021). Unravelling the crystal structure and optoelectronic properties of C3H3MI3 (M = Sn, Pb) for solar cell applications. Solar Energy Materials and Solar Cells. ISSN 0927-0248. 230. doi: 10.1016/j.solmat.2021.111133
  • Augustine, Anu Maria & Ponniah, Ravindran (2020). Role of W-site substitution on mechanical and electronic properties of cubic tungsten carbide. Journal of Physics: Condensed Matter. ISSN 0953-8984. 32(14). doi: 10.1088/1361-648X/ab6428
  • Kishore, M. R. Ashwin; Sjåstad, Anja Olafsen & Ponniah, Ravindran (2019). Influence of hydrogen and halogen adsorption on the photocatalytic water splitting activity of C2N monolayer: A first-principles study. Carbon. ISSN 0008-6223. 141, p. 50–58. doi: 10.1016/j.carbon.2018.08.072
  • Christhunathan, Vivek; Augustine, Anu Maria; Sudarsanan, Vishnu; Vairamoorthy, N & Ponniah, Ravindran (2019). Ab-initio modelling of new cathode material for Li-ion battery based on the Ti substituted Li2Fe(SO4)2. AIP Conference Proceedings. ISSN 0094-243X. 2115. doi: 10.1063/1.5113447
  • Sreedevi, P. D.; Vidya, Ravindran & Ponniah, Ravindran (2019). Earth-abundant nontoxic direct band gap semiconductors for photovoltaic applications by ab-initio simulations. Solar Energy. ISSN 0038-092X. 190, p. 350–360. doi: 10.1016/j.solener.2019.08.011
  • Kruthika, G; Ponniah, Ravindran & Murugan, Palanichamy (2019). Effect of anionic and cationic substitutions on the magnetic property of hydrated α-MnO2 . AIP Conference Proceedings. ISSN 0094-243X. 2115(1). doi: 10.1063/1.5113329
  • Sreedevi, P. D.; Ponniah, Ravindran & Vidya, R. (2019). First principles prediction of the ground state crystal structures of antiperovskite compounds A3PN (A= Be, Mg, Ca, Sr, Ba and Zn). Materials Today: Proceedings. ISSN 2214-7853. 8, p. 294–300. doi: 10.1016/j.matpr.2019.02.114
  • Ravindran, Varunaa & Ponniah, Ravindran (2019). Potential hydrogen storage materials from metal decorated 2D-C2N: An: ab initio study. Physical Chemistry, Chemical Physics - PCCP. ISSN 1463-9076. 21(45), p. 25311–25322. doi: 10.1039/c9cp05105h
  • Augustine, Anu Maria; Sudarsanan, Vishnu; Patra, Lokanath; Kavitha, Mary, J. & Ponniah, Ravindran (2019). Li-rich Li6MnxFe(1-x)S4 as cathode material for Li-ion battery. AIP Conference Proceedings. ISSN 0094-243X. 2115(1). doi: 10.1063/1.5113462
  • Varunaa, R; Kiruthika, S. & Ponniah, Ravindran (2019). Ti4+ substituted magnesium hydride as promising material for hydrogen storage and photovoltaic applications . AIP Conference Proceedings. ISSN 0094-243X. 2115. doi: 10.1063/1.5113384
  • Kiruthika, S.; Varunaa, R & Ponniah, Ravindran (2019). Amphoteric behavior of hydrogen in bimetallic molecular like hydrides. AIP Conference Proceedings. ISSN 0094-243X. 2115. doi: 10.1063/1.5113393
  • Varunaa, R; Fjellvåg, Helmer & Ponniah, Ravindran (2019). Zinc substituted MgH2 - a potential material for hydrogen storage applications. International Journal of Hydrogen Energy. ISSN 0360-3199. 44(26), p. 13632–13646. doi: 10.1016/j.ijhydene.2019.04.016
  • Patra, Lokanath; Pan, Zhao; Chen, Jun; Azuma, Masaki & Ponniah, Ravindran (2018). Metamagnetism stabilized giant magnetoelectric coupling in ferroelectric xBaTiO3–(1 − x)BiCoO3 solid solution. Physical Chemistry, Chemical Physics - PCCP. ISSN 1463-9076. 20(10), p. 7021–7032. doi: 10.1039/c7cp07677k
  • Kishore, M. R. Ashwin & Ponniah, Ravindran (2018). Phosphorene-AsP heterostructure as a potential excitonic solar cell material - A first principles study. AIP Conference Proceedings. ISSN 0094-243X. 1942. doi: 10.1063/1.5029207
  • Choudhary, Mukesh K. & Ponniah, Ravindran (2018). Effect of multinary substitution on electronic and transport properties of TiCoSb based half-Heusler alloys. AIP Conference Proceedings. ISSN 0094-243X. 1953:110024. doi: 10.1063/1.5033049
  • Choudhary, Mukesh K. & Ponniah, Ravindran (2018). Search for thermoelectrics with high figure of merit in half-Heusler compounds with multinary substitution. AIP Conference Proceedings. ISSN 0094-243X. 1942(1). doi: 10.1063/1.5029029
  • Kiruthika, Srinu & Ponniah, Ravindran (2018). Chemical bonding analysis on amphoteric hydrogen - Alkaline earth ammine borohydrides. AIP Conference Proceedings. ISSN 0094-243X. 1942:140040. doi: 10.1063/1.5029171
  • Augustine, Anu Maria; Sudarsanan, Vishnu; Sunny, Geo & Ponniah, Ravindran (2018). A first principle study on iron substituted LiNi (BO3) to use as cathode material for Li-ion batteries. AIP Conference Proceedings. ISSN 0094-243X. 1942:090043. doi: 10.1063/1.5028958
  • Patra, Lokanath & Ponniah, Ravindran (2018). Magnetoelectric properties of Pb free Bi2FeTiO6: A theoretical investigation. AIP Conference Proceedings. ISSN 0094-243X. 1953. doi: 10.1063/1.5033104
  • Patra, Lokanath & Ponniah, Ravindran (2018). Theoretical investigation of the magnetoelectric properties of Bi2NiTiO6. AIP Conference Proceedings. ISSN 0094-243X. 1942:130054. doi: 10.1063/1.5029124
  • Ashwin Kishore, MR & Ponniah, Ravindran (2017). Tailoring the Electronic Band Gap and Band Edge Positions in the C2N Monolayer by P and As Substitution for Photocatalytic Water Splitting. Journal of Physical Chemistry C. ISSN 1932-7447. 121(40), p. 22216–22224. doi: 10.1021/acs.jpcc.7b07776
  • Varunaa, R & Ponniah, Ravindran (2017). Structural phase stability in fluorinated calcium hydride. AIP Conference Proceedings. ISSN 0094-243X. 1832. doi: 10.1063/1.4980184
  • Varunaa, R & Ponniah, Ravindran (2017). Phase Stability, Phase Mixing, and Phase Separation in Fluorinated Alkaline Earth Hydrides. Journal of Physical Chemistry C. ISSN 1932-7447. 121(40), p. 21806–21820. doi: 10.1021/acs.jpcc.7b03265
  • M R, Ashwin Kishore & Ponniah, Ravindran (2017). Enhanced photocatalytic water splitting in C2N monolayer by C-site isoelectronic substitution. ChemPhysChem. ISSN 1439-4235. 18(12), p. 1526–1532. doi: 10.1002/cphc.201700165
  • Patra, Lokanath & Ponniah, Ravindran (2017). Prediction of magnetoelectric behavior in Bi2MnTiO6. AIP Conference Proceedings. ISSN 0094-243X. 1832. doi: 10.1063/1.4980773
  • Kishore, M. R. Ashwin & Ponniah, Ravindran (2017). Te doped indium (II) selenide photocatalyst for water splitting: A first principles study. AIP Conference Proceedings. ISSN 0094-243X. 1832. doi: 10.1063/1.4980582
  • Patra, Lokanath; Kishore, M. R. Ashwin; Vidya, Ravindran; Sjåstad, Anja Olafsen; Fjellvåg, Helmer & Ponniah, Ravindran (2016). Electronic and magnetic structures of hole doped trilayer La4-xSrxNi3O8 from first-principles calculations. Inorganic Chemistry. ISSN 0020-1669. 55(22), p. 11898–11907. doi: 10.1021/acs.inorgchem.6b01938
  • Kishore, M. R. Ashwin; Okamoto, Hiroshi; Patra, Lokanath; Vidya, Ravindran; Sjåstad, Anja Olafsen & Fjellvåg, Helmer [Show all 7 contributors for this article] (2016). Theoretical and experimental investigation on structural, electronic and magnetic properties of layered Mn5O8. Physical Chemistry, Chemical Physics - PCCP. ISSN 1463-9076. 18(40), p. 27885–27896. doi: 10.1039/c6cp04170a
  • Lokanath, Patra; M R, Ashwin Kishore; R, Vidya; Anja O, Sjåstad; H, Fjellvåg & Ponniah, Ravindran (2016). Electronic and magnetic structures of hole doped trilayer La4-xSrxNi3O8 from first principles calculations. Inorganic Chemistry. ISSN 0020-1669. 55, p. 11898–11907.
  • M R, Ashwin Kishore; H, Okamoto; Lokanath, Patra; R, Vidya; Anja O, Sjåstad & H, Fjellvåg [Show all 7 contributors for this article] (2016). Theoretical and experimental investigation on structural, electronic, and magnetic properties of layered Mn5O8. Physical Chemistry, Chemical Physics - PCCP. ISSN 1463-9076. 18, p. 27885–27896.
  • Manimuthu, P.; Vidya, R.; Ravindran, Ponniah; Fjellvåg, Helmer & Venkateswaran, C. (2015). Observation of direct magneto-dielectric behaviour in Lu3Fe5O12−δ above room-temperature. Physical Chemistry, Chemical Physics - PCCP. ISSN 1463-9076. 17(27), p. 17688–17698. doi: 10.1039/c5cp02719e
  • Iozzi, Maria Francesca; Vajeeston, Ponniah; Vidya, R.; Ravindran, Ponniah & Fjellvåg, Helmer (2015). Structural and electronic properties of transparent conducting delafossite: a comparison between the AgBO2 and CuBO2 families (B = Al, Ga, In and Sc, Y). RSC Advances. ISSN 2046-2069. 5(2), p. 1366–1377. doi: 10.1039/c3ra47531j
  • Yang, Li-Ming; Ravindran, Ponniah; Vajeeston, Ponniah; Svelle, Stian & Tilset, Mats (2013). A quantum mechanically guided view of Cd-MOF-5 from formation energy, chemical bonding, electronic structure, and optical properties. Microporous and Mesoporous Materials. ISSN 1387-1811. 175, p. 50–58. doi: 10.1016/j.micromeso.2013.03.020
  • Yang, Li-Ming; Ravindran, Ponniah & Tilset, Mats (2013). Solid-State Structure and Calculated Electronic Structure, Formation Energy, Chemical Bonding, and Optical Properties of Zn4O(FMA)(3) and Its Heavier Congener Cd4O(FMA)(3). Inorganic Chemistry. ISSN 0020-1669. 52(8), p. 4217–4228. doi: 10.1021/ic301928a
  • Vidya, R.; Ravindran, Ponniah & Fjellvåg, Helmer (2012). Ab-initio studies on Li doping, Li-pairs, and complexes between Li and intrinsic defects in ZnO. Journal of Applied Physics. ISSN 0021-8979. 111(12). doi: 10.1063/1.4729774
  • Yang, Li-Ming; Ravindran, Ponniah; Vajeeston, Ponniah & Tilset, Mats (2012). Properties of IRMOF-14 and its analogues M-IRMOF-14 (M = Cd, alkaline earth metals): electronic structure, structural stability, chemical bonding, and optical properties. Physical Chemistry, Chemical Physics - PCCP. ISSN 1463-9076. 14(14), p. 4713–4723. doi: 10.1039/c2cp24091b
  • Yang, Li-Ming; Ravindran, Ponniah; Vajeeston, Ponniah & Tilset, Mats (2012). Ab initio investigations on the crystal structure, formation enthalpy, electronic structure, chemical bonding, and optical properties of experimentally synthesized isoreticular metal-organic framework-10 and its analogues: M-IRMOF-10 (M = Zn, Cd, Be, Mg, Ca, Sr and Ba). RSC Advances. ISSN 2046-2069. 2(4), p. 1618–1631. doi: 10.1039/c1ra00187f
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2012). Prediction of structural, lattice dynamical, and mechanical properties of CaB2. RSC Advances. ISSN 2046-2069. 2(31), p. 11687–11694. doi: 10.1039/c2ra21807k
  • Vajeeston, Ponniah; Sartori, Sabrina; Ravindran, Ponniah; Knudsen, Kenneth; Hauback, Bjørn & Fjellvåg, Helmer (2012). MgH2 in Carbon Scaffolds: A Combined Experimental and Theoretical Investigation. Journal of Physical Chemistry C. ISSN 1932-7447. 116(40), p. 21139–21147. doi: 10.1021/jp3008199
  • Yang, Li-Ming; Ravindran, Ponniah; Vajeeston, Ponniah & Tilset, Mats (2012). Formation of an intermediate band in isoreticular metal-organic framework-993 (IRMOF-993) and metal-substituted analogues M-IRMOF-993. Journal of Materials Chemistry. ISSN 0959-9428. 22(32), p. 16324–16335. doi: 10.1039/c2jm31360j
  • Vajeeston, Ponniah; Ravindran, Ponniah; Hauback, Bjørn & Fjellvåg, Helmer (2011). Prediction of crystal structure, lattice dynamical, and mechanical properties of CaB2H2. International Journal of Hydrogen Energy. ISSN 0360-3199. 36(16), p. 10149–10158. doi: 10.1016/j.ijhydene.2011.05.038
  • Yang, Li-Ming; Vajeeston, Ponniah; Ravindran, Ponniah; Fjellvåg, Helmer & Tilset, Mats (2011). Revisiting isoreticular MOFs of alkaline earth metals: a comprehensive study on phase stability, electronic structure, chemical bonding, and optical properties of A-IRMOF-1 (A = Be, Mg, Ca, Sr, Ba). Physical Chemistry, Chemical Physics - PCCP. ISSN 1463-9076. 13(21), p. 10191–10203. doi: 10.1039/c0cp02944k
  • Vidya, Ravindran; Ravindran, Ponniah; Fjellvåg, Helmer; Svensson, Bengt Gunnar; Monakhov, Edouard & Ganchenkova, Maria [Show all 7 contributors for this article] (2011). Energetics of intrinsic defects and their complexes in ZnO investigated by density functional calculations. Physical Review B. Condensed Matter and Materials Physics. ISSN 1098-0121. 83(4). doi: 10.1103/PhysRevB.83.045206
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2011). Phonon, IR, and Raman Spectra, NMR Parameters, and Elastic Constant Calculations for AlH3 Polymorphs. Journal of Physical Chemistry A. ISSN 1089-5639. 115(39), p. 10708–10719. doi: 10.1021/jp2011342
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2011). Stability enhancement by particle size reduction in AlH3. Journal of Alloys and Compounds. ISSN 0925-8388. 509, p. S662–S666. doi: 10.1016/j.jallcom.2010.11.110
  • Frommen, Christoph; Sørby, Magnus Helgerud; Ravindran, Ponniah; Vajeeston, Ponniah; Fjellvåg, Helmer & Hauback, Bjørn (2011). Synthesis, crystal structure, and thermal properties of the first mixed-metal and anion-substituted rare earth borohydride LiCe(BH4)3Cl. Journal of Physical Chemistry C. ISSN 1932-7447. 115(47), p. 23591–23602. doi: 10.1021/jp205105j Full text in Research Archive
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2010). Structural investigation and thermodynamical properties of alkali calcium trihydrides. Journal of Chemical Physics. ISSN 0021-9606. 132(11). doi: 10.1063/1.3299732
  • Sæterli, Ragnhild; Selbach, Sverre Magnus; Ravindran, Ponniah; Grande, Tor & Holmestad, Randi (2010). Electronic structure of multiferroic BiFeO3 and related compounds: Electron energy loss spectroscopy and density functional study. Physical Review B. Condensed Matter and Materials Physics. ISSN 1098-0121. 82(6). doi: 10.1103/PhysRevB.82.064102
  • Yang, Li-Ming; Vajeeston, Ponniah; Ravindran, Ponniah; Fjellvåg, Helmer & Tilset, Mats (2010). Theoretical Investigations on the Chemical Bonding, Electronic Structure, And Optical Properties of the Metal-Organic Framework MOF-5. Inorganic Chemistry. ISSN 0020-1669. 49(22), p. 10283–10290. doi: 10.1021/ic100694w
  • Karazhanov, Smagul & Ravindran, Ponniah (2010). Ab Initio Study Of Double Oxides ZnX2O4 (X=Al, Ga, In) Having Spinel Structure. Journal of The American Ceramic Society. ISSN 0002-7820. 93(10), p. 3335–3341. doi: 10.1111/j.1551-2916.2010.03864.x
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2010). Nono-structures of NaBH4 and KBH4. Journal of Nanoscience and Nanotechnology. ISSN 1533-4880. 11(3), p. 2296–2318. doi: 10.1166/jnn.2010.3517
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2009). Predicting New Materials for Hydrogen Storage Application. Materials. ISSN 1996-1944. 2, p. 2296–2318. doi: 10.3390/ma2042296
  • Karazhanov, Smagul; Ravindran, Ponniah; Fjellvåg, Helmer & Svensson, Bengt Gunnar (2009). Electronic structure and optical properties of ZnSiO3 and Zn2SiO4. Journal of Applied Physics. ISSN 0021-8979. 106(12). doi: 10.1063/1.3268445 Full text in Research Archive
  • Klaveness, Arne; Fjellvåg, Helmer; Kjekshus, Arne; Ravindran, Ponniah & Swang, O (2009). A semi-empirical approach to accurate standard enthalpies of formation for solid hydrides. Journal of Alloys and Compounds. ISSN 0925-8388. 469(1-2), p. 617–622. doi: 10.1016/j.jallcom.2008.02.060
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2009). Nanostructures of LiBH4: a density-functional study. Nanotechnology. ISSN 0957-4484. 20(27). doi: 10.1088/0957-4484/20/27/275704
  • Karazhanov, Smagul; Ravindran, Ponniah; Vajeeston, Ponniah; Ulyashin, AG; Fjellvåg, Helmer & Svensson, Bengt Gunnar (2009). Phase stability and pressure-induced structural transitions at zero temperature in ZnSiO3 and Zn2SiO4. Journal of Physics: Condensed Matter. ISSN 0953-8984. 21(48). doi: 10.1088/0953-8984/21/48/485801 Full text in Research Archive
  • Karlsen, Ole Bjørn; Kjekshus, Arne; Fjellvåg, Helmer; Ravindran, Ponniah; Vidya, R. & Hauback, BC (2009). Structure and magnetism of the beta-Mn-Co solid-solution phase. Journal of Alloys and Compounds. ISSN 0925-8388. 476(1-2), p. 9–13. doi: 10.1016/j.jallcom.2008.09.011
  • Vidya, R.; Ravindran, Ponniah; Knizek, K; Kjekshus, Arne & Fjellvåg, Helmer (2008). Density functional theory studies of spin, charge, and orbital ordering in YBaT2O5 (T = Mn, Fe, Co). Inorganic Chemistry. ISSN 0020-1669. 47, p. 6608–6620. doi: 10.1021/ic702025c
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2008). Novel High Pressure Phases of beta-AlH3: A Density-Functional Study. Chemistry of Materials. ISSN 0897-4756. 20(19), p. 5997–6002. doi: 10.1021/cm800282b
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2008). Theoretical investigations on low energy surfaces and nanowires of MgH2. Nanotechnology. ISSN 0957-4484. 19. doi: 10.1088/0957-4484/19/27/275704
  • Offernes, Laila; Ravindran, Ponniah; Seim, CW & Kjekshus, Arne (2008). Prediction of composition for stable half-Heusler phases from electronic-band-structure analyses. Journal of Alloys and Compounds. ISSN 0925-8388. 458, p. 47–60. doi: 10.1016/j.jallcom.2007.04.038
  • Vajeeston, Ponniah; Ravindran, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2008). First-principles investigations of the MMgH3 (M = Li, Na, K, Rb, Cs) series. Journal of Alloys and Compounds. ISSN 0925-8388. 450. doi: 10.1016/j.jallcom.2006.10.163
  • Karazhanov, Smagul; Ulyashin, AG; Vajeeston, Ponniah & Ravindran, Ponniah (2008). Hydrides as materials for semiconductor electronics. Philosophical Magazine. ISSN 1478-6435. 88, p. 2461–2476. doi: 10.1080/14786430802360362
  • Ravindran, Ponniah; Vidya, R.; Eriksson, O & Fjellvåg, Helmer (2008). Magnetic-instability-induced giant magnetoelectric coupling. Advanced Materials. ISSN 0935-9648. 20, p. 1353–+. doi: 10.1002/adma.200701889
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2008). Structural phase stability studies on MBeH3 (M = Li, Na, K, Rb, Cs) from density functional calculations. Inorganic Chemistry. ISSN 0020-1669. 47. doi: 10.1021/ic7015897
  • Ravindran, Ponniah; Vidya, R.; Fjellvåg, Helmer & Kjekshus, Arne (2008). Validity of bond-length and Mossbauer parameters to assign oxidation states in multicomponent oxides: Case study of Sr4Fe4O11. Physical Review B. Condensed Matter and Materials Physics. ISSN 1098-0121. 77. doi: 10.1103/PhysRevB.77.134448
  • Karazhanov, Smagul; Ulyashin, AG; Ravindran, Ponniah & Vajeeston, Ponniah (2008). Semiconducting hydrides. Europhysics letters. ISSN 0295-5075. 82. doi: 10.1209/0295-5075/82/17006
  • Yartys, Volodymyr; Vajeeston, Ponniah; Riabov, Alexander Bronoslavovich; Ravindran, Ponniah; Denys, Roman Volodymyrovich & Mæhlen, Jan Petter [Show all 8 contributors for this article] (2008). Crystal chemistry and metal-hydrogen bonding in anisotropic and interstitial hydrides of intermetallics of rare earth (R) and transition metals (T), RT3 and R2T7. Zeitschrift fur Kristallographie. ISSN 0044-2968. 223(10), p. 674–689. doi: 10.1524/zkri.2008.1030
  • Karazhanov, Smagul; Ravindran, Ponniah; Vajeeston, Ponniah & Ulyashin, AG (2007). Hydride electronics. Physica status solidi. A, Applied research. ISSN 0031-8965. 204, p. 3538–3544. Full text in Research Archive
  • Søndenå, Rune; Søndenå, Rune; Stølen, Svein; Ravindran, P.; Ravindran, Ponniah & Grande, Tor (2007). Heat capacity and lattice dynamics of cubic and hexagonal SrMnO3: Calorimetry and density functional theory simulations. Physical Review B. Condensed Matter and Materials Physics. ISSN 1098-0121. 75, p. 214307-1–214307-8. doi: 10.1103/PhysRevB.75.214307
  • Lalitha, S; Karazhanov, Smagul; Ravindran, Ponniah; Senthilarasu, S; Sathyamoorthy, R & Janabergenov, J (2007). Electronic structure, structural and optical properties of thermally evaporated CdTe thin films. Physica. B, Condensed matter. ISSN 0921-4526. 387, p. 227–238. doi: 10.1016/j.physb.2006.04.008
  • Klaveness, Arne; Vajeeston, Ponniah; Ravindran, Ponniah; Fjellvåg, Helmer & Kjekshus, Arne (2007). Structure and bonding in BA1H(5) (B = Be, Ca, Sr) from first-principle calculations. Journal of Alloys and Compounds. ISSN 0925-8388. 433. doi: 10.1016/j.jallcom.2006.06.047
  • Karazhanov, Smagul; Ravindran, Ponniah; Kjekshus, Arne; Fjellvåg, Helmer & Svensson, Bengt Gunnar (2007). Electronic structure and optical properties of ZnX (X=O, S, Se, Te): A density functional study. Physical Review B. Condensed Matter and Materials Physics. ISSN 1098-0121. 75. doi: 10.1103/PhysRevB.75.155104
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2007). A new series of high hydrogen content hydrogen-storage materials - A theoretical prediction. Journal of Alloys and Compounds. ISSN 0925-8388. 446, p. 44–47. doi: 10.1016/j.jallcom.2006.12.058
  • Offernes, Laila; Ravindran, Ponniah & Kjekshus, Arne (2007). Electronic structure and chemical bonding in half-Heusler phases. Journal of Alloys and Compounds. ISSN 0925-8388. 439, p. 37–54. doi: 10.1016/j.jallcom.2006.08.316
  • Søndenå, Rune; Søndenå, Rune; Stølen, Svein; Ravindran, P.; Ravindran, Ponniah & Grande, Tor [Show all 7 contributors for this article] (2007). Corner- versus face-sharing octahedra in AMnO3 perovskites (A=Ca, Sr, and Ba). Physical Review B. Condensed Matter and Materials Physics. ISSN 1098-0121. 75, p. 184105-1–184105-10. doi: 10.1103/PhysRevB.75.184105
  • Karazhanov, Smagul; Ravindran, Ponniah; Vajeeston, Ponniah; Ulyashin, A; Finstad, Terje & Fjellvåg, Helmer (2007). Phase stability, electronic structure, and optical properties of indium oxide polytypes. Physical Review B. Condensed Matter and Materials Physics. ISSN 1098-0121. 76(7). doi: 10.1103/PhysRevB.76.075129 Full text in Research Archive
  • Vidya, R.; Ravindran, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2006). Crystal and electronic structures of Cr3O8 and LiCr3O8: Probable cathode materials in Li batteries. Physical Review B. Condensed Matter and Materials Physics. ISSN 1098-0121. 73.
  • Karazhanov, Smagul; Ravindran, Ponniah; Grossner, Ulrike; Kjekshus, Arne; Fjellvåg, Helmer & Svensson, Bengt Gunnar (2006). Strong coulomb correlation effects in ZnO. Solid State Communications. ISSN 0038-1098. 139, p. 391–396.
  • Karazhanov, Smagul; Ravindran, Ponniah; Kjekshus, Arne; Fjellvåg, Helmer; Grossner, Ulrike & Svensson, Bengt Gunnar (2006). Coulomb correlation effects in zinc monochalcogenides. Journal of Applied Physics. ISSN 0021-8979. 100.
  • Vidya, R.; Ravindran, Ponniah; Fjellvåg, Helmer & Kjekshus, Arne (2006). Spin- and charge-ordering in oxygen-vacancy-ordered mixed-valence Sr4Fe4O11. Physical Review B. Condensed Matter and Materials Physics. ISSN 1098-0121. 74.
  • Klaveness, Arne; Vajeeston, Ponniah; Ravindran, Ponniah; Fjellvåg, Helmer; Li, Yanjun & Kjekshus, Arne (2006). Structural phase stability and bonding behavior of BAlH5 (B=Mg,Ba) from first-principles calculations. Physical Review B. Condensed Matter and Materials Physics. ISSN 1098-0121. 73.
  • Vajeeston, Ponniah; Ravindran, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2006). High hydrogen content complex hydrides: A density-functional study. Applied Physics Letters. ISSN 0003-6951. 89.
  • Vidya, R.; Ravindran, Ponniah; Kjekshus, A & Fjellvåg, Helmer (2006). Density-functional calculations of the crystal structures and properties of CsCr3O8 and ACr(3)O(8) (A=In,Tl,Cu,Ag,Au). Physical Review B. Condensed Matter and Materials Physics. ISSN 1098-0121. 73.
  • Vajeeston, Ponniah; Ravindran, Ponniah; Hauback, BC; Fjellvåg, Helmer; Kjekshus, Arne & Furuseth, Sigrid Breien [Show all 7 contributors for this article] (2006). Structural stability and pressure-induced phase transitions in MgH2. Physical Review B. Condensed Matter and Materials Physics. ISSN 1098-0121. 73.
  • Ravindran, Ponniah; Vajeeston, Ponniah; Vidya, R.; Fjellvåg, Helmer & Kjekshus, A (2006). Modeling of hydrogen storage materials by density-functional calculations. Journal of Power Sources. ISSN 0378-7753. 159, p. 88–99.
  • Ravindran, Ponniah; Vidya, R.; Kjekshus, Arne; Fjellvåg, Helmer & Eriksson, O. (2006). Theoretical investigation of magnetoelectric behavior in BiFeO3. Physical Review B. Condensed Matter and Materials Physics. ISSN 1098-0121. 74.
  • Vidya, R.; Ravindran, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2006). First-principles density-functional calculations on HCr3O8: An exercise to better understand the ACr(3)O(8) (A = alkali metal) family. Journal of Electroceramics. ISSN 1385-3449. 17, p. 15–20. doi: 10.1007/s10832-006-9929-6

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  • M R, Ashwin Kishore & Ponniah, Ravindran (2017). Effect of H Impurity on the Photocatalytic Activity of C2N Monolayer.
  • Lokanath, Patra & Ponniah, Ravindran (2017). First-principles prediction of coexistence of magnetism and ferroelectricity in BiFeWO6.
  • Lokanath, Patra & Ponniah, Ravindran (2017). Prediction of Magnetoelectric behavior in Bi2MnTiO6. AIP Conference Proceedings. ISSN 0094-243X. 1832.
  • Lokanath, Patra & Ponniah, Ravindran (2015). Electronic and magnetic structures of hole doped trilayer La4Ni3O8 from first principles.
  • M R, Ashwin Kishore & Ponniah, Ravindran (2015). Electronic Structure and Magnetic Properties of Mn5O8.
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2012). Reply to "A comment on 'Prediction of crystal structure, lattice dynamical, and mechanical properties of CaB2H2' by Vajeeston et al., Int J Hydrogen Energy, 36 (2011) 10149-10158" Discussion. International Journal of Hydrogen Energy. ISSN 0360-3199. 37(3), p. 2711–2712. doi: 10.1016/j.ijhydene.2011.10.097
  • Kalantzopoulos, Georgios N.; Frommen, Christoph; Sørby, Magnus Helgerud; Ravindran, Ponniah; Fjellvåg, Helmer & Hauback, Bjørn (2011). Crystal Structure and Thermal Properties of Novel Mixed-Metal and Anion-Substituted Borohydrides.
  • Ravindran, Ponniah; Vidya, R.; Fjellvåg, Helmer & Kjekshus, Arne (2008). Reply to "Comment on 'Spin- and charge-ordering in oxygen-vacancy-ordered mixed-valence Sr4Fe4O11' ". Physical Review B. Condensed Matter and Materials Physics. ISSN 1098-0121. 77. doi: 10.1103/PhysRevB.77.136402
  • Ravindran, Ponniah; Offernes, Laila & Kjekshus, Arne (2007). Comment on "Optical and magneto-optical properties of AuMnSn" [Appl. Phys. Lett. 88, 121909 (2006)]. Applied Physics Letters. ISSN 0003-6951. 91. doi: 10.1063/1.2804560
  • Karazhanov, Smagul; Ravindran, Ponniah; Ulyashin, Alexander; Vajeeston, Ponniah & Finstad, Terje (2006). Electronic Structure and Optical Properties of Indium Tin Oxide.
  • Larsen, Kjersti Beate; Fjellvåg, Helmer; Bakken, Vebjørn; Ponniah, Ravindran & Helgaker, Trygve (2011). DFT-modellering av elektroniske og optiske egenskaper i CPO-27-Zn. Kjemisk institutt, Universitetet i Oslo.

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Published Mar. 28, 2011 1:57 PM - Last modified Oct. 30, 2012 11:55 AM