Ponniah Vajeeston

Bilde av Ponniah Vajeeston
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Telefon +47-22855613
Mobiltelefon +47-45270694
Rom Ø 136
Brukernavn
Besøksadresse Sem Sælands vei 26 Kjemibygningen 0371 OSLO
Postadresse Postboks 1126 Blindern 0318 OSLO
Emneord: Uorganisk materialkjemi, Kjemi, SMN

Publikasjoner

  • Bianchini, Federico; Fjellvåg, Helmer & Vajeeston, Ponniah (2018). A first principle comparative study of the ionic diffusivity in LiAlO<sub>2</sub> and NaAlO<sub>2</sub> polymorphs for solid-state battery applications. Physical Chemistry, Chemical Physics - PCCP.  ISSN 1463-9076.  20(15), s 9824- 9832 . doi: 10.1039/c8cp00715b
  • Bianchini, Federico; Fjellvåg, Helmer & Vajeeston, Ponniah (2018). A first-principle study of NaMPO4(M = Mn, Fe, Co, Ni) possible novelstructures as cathode materials for sodium-ion batteries: Structural andelectrochemical characterisation. Materials Chemistry and Physics.  ISSN 0254-0584.  219, s 212- 221 . doi: 10.1016/j.matchemphys.2018.08.007
  • Eidsvåg, Håkon; Rasukkannu, Murugesan; Vajeeston, Ponniah & Velauthapillai, Dhayalan (2018). Bandgap engineering in CsSnxPb(1−x)I3 and their influence on light absorption. Materials letters (General ed.).  ISSN 0167-577X.  218, s 253- 256 . doi: 10.1016/j.matlet.2018.02.021
  • El-Kharbachi, Abdelouahab; Hu, Yang; Yoshida, Koji; Vajeeston, Ponniah; Kim, Sangryun; Sørby, Magnus Helgerud; Orimo, Shin-Ichi; Fjellvåg, Helmer & Hauback, Bjørn (2018). Lithium ionic conduction in composites of Li(BH4)0.75I0.25 and amorphous 0.75Li2S·0.25P2S5 for battery applications. Electrochimica Acta.  ISSN 0013-4686.  278, s 332- 339 . doi: 10.1016/j.electacta.2018.05.041
  • Fjellvåg, Øystein Slagtern; Armstrong, Jeff; Vajeeston, Ponniah & Sjåstad, Anja Olafsen (2018). New Insights into Hydride Bonding, Dynamics, and Migration in La2LiHO3 Oxyhydride. Journal of Physical Chemistry Letters.  ISSN 1948-7185.  s 353- 358 . doi: 10.1021/acs.jpclett.7b03098 Vis sammendrag
  • Rasukkannu, Murugesan; Velauthapillai, Dhayalan; Bianchini, Federico & Vajeeston, Ponniah (2018). Properties of novel non-silicon materials for photovoltaic applications: A first-principle insight. Materials.  ISSN 1996-1944.  11:2006(10), s 1- 17 . doi: 10.3390/ma11102006
  • Rasukkannu, Murugesan; Velauthapillai, Dhayalan & Vajeeston, Ponniah (2018). A first-principle study of the electronic, mechanical and optical properties of inorganic perovskite Cs2SnI6 for intermediate-band solar cells. Materials letters (General ed.).  ISSN 0167-577X.  218, s 233- 236 . doi: 10.1016/j.matlet.2018.02.034
  • Rasukkannu, Murugesan; Velauthapillai, Dhayalan & Vajeeston, Ponniah (2018). A promising high-efficiency photovoltaic alternative non-silicon material: A first-principle investigation. Scripta Materialia.  ISSN 1359-6462.  156, s 134- 137 . doi: 10.1016/j.scriptamat.2018.07.027
  • Ruud, Amund; Sottmann, Jonas; Vajeeston, Ponniah & Fjellvåg, Helmer (2018). Operando Investigations of Lithiation and Delithiation Processes in the BiVO4 Anode Material. Physical Chemistry, Chemical Physics - PCCP.  ISSN 1463-9076. . doi: 10.1039/C8CP05330H
  • Vajeeston, Ponniah (2018). Ionic conductivity enhancement by particle size reduction in Li2FeSiO4. Materials letters (General ed.).  ISSN 0167-577X.  218, s 313- 316 . doi: 10.1016/j.matlet.2018.02.041
  • Vajeeston, Ponniah; Fjellvåg, Helmer & Nilsen, Ola (2018). Search for potential precursors for Si-atomic layer deposition- a quantum chemical study. Materials letters (General ed.).  ISSN 0167-577X.  216, s 189- 192 . doi: 10.1016/j.matlet.2018.01.040 Fulltekst i vitenarkiv. Vis sammendrag
  • Bianchini, Federico; Fjellvåg, Helmer & Vajeeston, Ponniah (2017). First-principles study of the structural stability and electrochemical properties of Na2MSiO4 (M = Mn, Fe, Co and Ni) polymorphs. Physical Chemistry, Chemical Physics - PCCP.  ISSN 1463-9076.  19(22), s 14462- 14470 . doi: 10.1039/c7cp01395g
  • Lundvall, Fredrik; Wragg, David; Vajeeston, Ponniah; Dietzel, Pascal D.C. & Fjellvåg, Helmer (2017). Ab initio structure solution and thermal stability evaluation of a new Ca(II) 3D coordination polymer using synchrotron powder X-ray diffraction data. CrysteEngComm.  ISSN 1466-8033.  19(39), s 5857- 5863 . doi: 10.1039/c7ce01389b Vis sammendrag
  • Nagell, Marius Uv; Slawinski, Wojciech Andrzej; Vajeeston, Ponniah; Fjellvåg, Helmer & Sjåstad, Anja Olafsen (2017). Temperature induced transitions in La-4(Co1-xNix)(3)O-10 (+) (delta); oxygen stoichiometry and mobility. Solid State Ionics.  ISSN 0167-2738.  305, s 7- 15 . doi: 10.1016/j.ssi.2017.04.006
  • Rasukkannu, Murugesan; Velauthapillai, Dhayalan & Vajeeston, Ponniah (2017). Computational modeling of novel bulk materials for the intermediate-band solar cells. ACS Omega.  ISSN 2470-1343.  2(4), s 1454- 1462 . doi: 10.1021/acsomega.6b00534 Fulltekst i vitenarkiv.
  • Sottmann, Jonas; Di Michiel, Marco; Fjellvåg, Helmer; Malavasi, Lorenzo; Margadonna, Serena; Vajeeston, Ponniah; Vaughan, Gavin B M & Wragg, David (2017). Chemical Structures of Specific Sodium Ion Battery Components Determined by Operando Pair Distribution Function and X-ray Diffraction Computed Tomography. Angewandte Chemie International Edition.  ISSN 1433-7851.  56(38), s 11385- 11389 . doi: 10.1002/anie.201704271 Fulltekst i vitenarkiv.
  • Sottmann, Jonas; Herrmann, Matthias; Vajeeston, Ponniah; Ruud, Amund; Drathen, Christina; Emerich, Hermann; Wragg, David & Fjellvåg, Helmer (2017). Bismuth Vanadate and Molybdate: Stable Alloying Anodes for Sodium-Ion Batteries. Chemistry of Materials.  ISSN 0897-4756.  29(7), s 2803- 2810 . doi: 10.1021/acs.chemmater.6b04699
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2017). First-principles study of structural stability, dynamical and mechanical properties of Li2FeSiO4 polymorphs. RSC Advances.  ISSN 2046-2069.  7(27), s 16843- 16853 . doi: 10.1039/c6ra26555c
  • Lundvall, Fredrik; Vajeeston, Ponniah; Wragg, David; Dietzel, Pascal D.C. & Fjellvåg, Helmer (2016). Two new series of coordination polymers and evaluation of their properties by density functional theory. Crystal Growth & Design.  ISSN 1528-7483.  16(1), s 339- 346 . doi: 10.1021/acs.cgd.5b01302
  • Sottmann, Jonas; Herrmann, Matthias; Vajeeston, Ponniah; Hu, Yang; Ruud, Amund; Drathen, Christina; Emerich, Hermann; Fjellvåg, Helmer & Wragg, David (2016). How Crystallite Size Controls the Reaction Path in Nonaqueous Metal Ion Batteries: The Example of Sodium Bismuth Alloying. Chemistry of Materials.  ISSN 0897-4756.  28(8), s 2750- 2756 . doi: 10.1021/acs.chemmater.6b00491
  • 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), s 1366- 1377 . doi: 10.1039/c3ra47531j
  • Sjåstad, Anja Olafsen; Andersen, Niels Højmark; Vajeeston, Ponniah; Karthikeyan, Jayakumar; Arstad, Bjørnar; Karlsson, Arne & Fjellvåg, Helmer (2015). On the Thermal Stability and Structures of Layered Double Hydroxides Mg1-xAlx(OH)2(NO3)x·mH2O (0.18 ≤ x ≤ 0.38). European Journal of Inorganic Chemistry.  ISSN 1434-1948.  2015(10), s 1775- 1788 . doi: 10.1002/ejic.201403232 Vis sammendrag
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). Crystal structures of aluminum-based hydrides. Emerging Materials Research.  ISSN 2046-0147.  4(2), s 192- 217 . doi: 10.1680/emr.15.00016
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2014). Revised electronic structure, Raman and IR studies of AB(2)H(2) and ABCH (A = Sr, Ba; B = Al, Ga; C = Si, Ge) phases. RSC Advances.  ISSN 2046-2069.  4(1), s 22- 31 . doi: 10.1039/c3ra44248a
  • 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, s 50- 58 . doi: 10.1016/j.micromeso.2013.03.020
  • Vajeeston, Ponniah; Ravindran, P; Fichtner, M. & Fjellvåg, Helmer (2012). Influence of Crystal Structure of Bulk Phase on the Stability of Nanoscale Phases: Investigation on MgH2 Derived Nanostructures. Journal of Physical Chemistry C.  ISSN 1932-7447.  116(35), s 18965- 18972 . doi: 10.1021/jp305933g
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2012). Prediction of structural, lattice dynamical, and mechanical properties of CaB2. RSC Advances.  ISSN 2046-2069.  2(31), s 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), s 21139- 21147 . doi: 10.1021/jp3008199
  • 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), s 1618- 1631 . doi: 10.1039/c1ra00187f
  • 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), s 16324- 16335 . doi: 10.1039/c2jm31360j
  • 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), s 4713- 4723 . doi: 10.1039/c2cp24091b
  • Østreng, Erik; Vajeeston, Ponniah; Nilsen, Ola & Fjellvåg, Helmer (2012). Atomic layer deposition of lithium nitride and carbonate using lithium silylamide. RSC Advances.  ISSN 2046-2069.  2(15), s 6315- 6322 . doi: 10.1039/c2ra20731a
  • 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), s 23591- 23602 . doi: 10.1021/jp205105j Fulltekst i vitenarkiv.
  • Riktor, Marit Dalseth; Filinchuk, Yaroslav; Vajeeston, Ponniah; Bardaji, E.G.; Fichtner, M.; Fjellvåg, Helmer; Sørby, Magnus Helgerud & Hauback, Bjørn (2011). The crystal structure of the first borohydride borate, Ca-3(BD4)(3)(BO3). Journal of Materials Chemistry.  ISSN 0959-9428.  21(20), s 7188- 7193 . doi: 10.1039/c1jm00074h
  • 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), s 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, s S662- S666 . doi: 10.1016/j.jallcom.2010.11.110
  • 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), s 10149- 10158 . doi: 10.1016/j.ijhydene.2011.05.038
  • Vajeeston, Ponniah; Vidya, R. & Fjellvåg, Helmer (2011). Nano-Phases of NaBH4 and KBH4. Journal of Nanoscience and Nanotechnology.  ISSN 1533-4880.  11(3), s 1929- 1934 . doi: 10.1166/jnn.2011.3517
  • 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), s 10191- 10203 . doi: 10.1039/c0cp02944k
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2010). Nono-structures of NaBH4 and KBH4. Journal of Nanoscience and Nanotechnology.  ISSN 1533-4880.  11(3), s 2296- 2318 . doi: 10.1166/jnn.2010.3517
  • 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
  • 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), s 10283- 10290 . doi: 10.1021/ic100694w
  • 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 Fulltekst i vitenarkiv.
  • 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
  • Vajeeston, Ponniah; Ravindran, Ponniah & Fjellvåg, Helmer (2009). Predicting New Materials for Hydrogen Storage Application. Materials.  ISSN 1996-1944.  2, s 2296- 2318 . doi: 10.3390/ma2042296
  • Karazhanov, Smagul; Ulyashin, AG; Ravindran, Ponniah & Vajeeston, Ponniah (2008). Semiconducting hydrides. Europhysics letters.  ISSN 0295-5075.  82 . doi: 10.1209/0295-5075/82/17006
  • Karazhanov, Smagul; Ulyashin, AG; Vajeeston, Ponniah & Ravindran, Ponniah (2008). Hydrides as materials for semiconductor electronics. Philosophical Magazine.  ISSN 1478-6435.  88, s 2461- 2476 . doi: 10.1080/14786430802360362
  • 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), s 5997- 6002 . doi: 10.1021/cm800282b
  • 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 Vis sammendrag
  • 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
  • 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
  • Yartys, Volodymyr; Vajeeston, Ponniah; Riabov, Alexander Bronoslavovich; Ravindran, Ponniah; Denys, Roman Volodymyrovich; Mæhlen, Jan Petter; Delaplane, Robert G. & Fjellvåg, Helmer (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), s 674- 689 . doi: 10.1524/zkri.2008.1030
  • 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 Fulltekst i vitenarkiv.
  • Karazhanov, Smagul; Ravindran, Ponniah; Vajeeston, Ponniah & Ulyashin, AG (2007). Hydride electronics. Physica status solidi. A, Applied research.  ISSN 0031-8965.  204, s 3538- 3544 Fulltekst i vitenarkiv.
  • 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
  • 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, s 44- 47 . doi: 10.1016/j.jallcom.2006.12.058
  • 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
  • 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, s 88- 99
  • Vajeeston, Ponniah; Ravindran, Ponniah; Hauback, BC; Fjellvåg, Helmer; Kjekshus, Arne; Furuseth, Sigrid Breien & Hanfland, M (2006). Structural stability and pressure-induced phase transitions in MgH2. 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
  • Vajeeston, Ponniah; Ravindran, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2005). Structural stability of alkali boron tetrahydrides ABH(4) (A = Li, Na, K, Rb, Cs) from first principle calculation. Journal of Alloys and Compounds.  ISSN 0925-8388.  387(1), s 97- 104 Vis sammendrag
  • Magnuson, M; Butorin, SM; Sathe, C; Nordgren, J & Ponniah, Vajeeston (2004). Spin transition in LaCoO3 investigated by resonant soft X-ray emission spectroscopy. Europhysics letters.  ISSN 0295-5075.  68, s 289- 295
  • Ponniah, Ravindran; Ponniah, Vajeeston; Fjellvåg, Helmer & Kjekshus, Arne (2004). Chemical-bonding and high-pressure studies on hydrogen-storage materials. Computational materials science.  ISSN 0927-0256.  30, s 349- 357 Vis sammendrag
  • Ponniah, Vajeeston; Ponniah, Ravindran; Fjellvåg, Helmer & Kjekshus, Arne (2004). Search for metal hydrides with short hydrogen-hydrogen separation: Ab initio calculations. Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  70, s art. no.- 014107 Vis sammendrag
  • Ponniah, Vajeeston; Ponniah, Ravindran; Kjekshus, Arne & Fjellvåg, Helmer (2004). Crystal structure of KAlH4 from first principle calculations. Journal of Alloys and Compounds.  ISSN 0925-8388.  363, s L7- L11 Vis sammendrag
  • Ponniah, Vajeeston; Ponniah, Ravindran; Kjekshus, Arne & Fjellvåg, Helmer (2004). Structural stability and electronic structure for Li3AlH6. Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  69, s art. no.- 020104 Vis sammendrag
  • Ponniah, Vajeeston; Ponniah, Ravindran; Kjekshus, Arne & Fjellvåg, Helmer (2004). Structural stability of BeH2 at high pressures. Applied Physics Letters.  ISSN 0003-6951.  84, s 34- 36
  • Ponniah, Vajeeston; Ponniah, Ravindran; Ravindran, Vidya; Fjellvåg, Helmer & Kjekshus, Arne (2004). Design of potential hydrogen-storage materials using first-principle density-functional calculations. Crystal Growth & Design.  ISSN 1528-7483.  4, s 471- 477
  • Ravindran, Vidya; Ponniah, Ravindran; Ponniah, Vajeeston; Fjellvåg, Helmer & Kjekshus, Arne (2004). Spin, charge, and orbital orderings in oxides with dual-valent transition metal ions. Ceramics International.  ISSN 0272-8842.  30, s 1993- 1998 Vis sammendrag
  • Ravindran, Vidya; Ponniah, Ravindran; Ponniah, Vajeeston; Kjekshus, Arne & Fjellvåg, Helmer (2004). Effect of oxygen stoichiometry on spin, charge, and orbital ordering in manganites. Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  69, s art. no.- 092405 Vis sammendrag
  • Ravindran, Ponniah; Vidya, R.; Vajeeston, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2003). Ground- and excited-state properties of inorganic solids from full-potential density-functional calculations. Journal of Solid State Chemistry.  ISSN 0022-4596.  176(2), s 338- 374
  • Vajeeston, Ponniah; Ravindran, Ponniah; Vidya, R.; Fjellvåg, Helmer & Kjekshus, Arne (2003). Pressure-induced phase of NaAlH4: A potential candidate for hydrogen storage?. Applied Physics Letters.  ISSN 0003-6951.  82(14), s 2257- 2259
  • Vajeeston, Ponniah; Ravindran, Ponniah; Vidya, R.; Kjekshus, Arne; Fjellvåg, Helmer & Yartys, V.A. (2003). Short hydrogen-hydrogen separation in RNiInH1.333 (R=La, Ce, Nd). Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  67(1), s 014101/1- 014101/11
  • Vajeeston, Ponniah; Ravindran, Ponniah; Ravindran, Vidya; Fjellvåg, Helmer & Kjekshus, Arne (2003). Huge-pressure-induced volume collapse in LiAlH4 and its implications to hydrogen storage. Physical Review B. Condensed Matter and Materials Physics.  ISSN 1098-0121.  68, s art. no.- 212101
  • Ravindran, Ponniah; Vajeeston, Ponniah; Vidya, R.; Kjekshus, Arne & Fjellvåg, Helmer (2002). Violation of the minimum H-H separation "rule" for metal hydrides. Physical Review Letters.  ISSN 0031-9007.  89(106403) Vis sammendrag
  • Ravindran, Ponniah; Vidya, R.; Vajeeston, Ponniah; Kjekshus, Arne; Fjellvåg, Helmer & Hauback, Bjørn C. (2002). Antiferromagnetic vs. ferromagnetic interactions and spin-glass-like behavior in ruthenates. Solid State Communications.  ISSN 0038-1098.  124(8), s 293- 298 Vis sammendrag
  • Vajeeston, Ponniah; Ravindran, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2002). Pressure-induced structural transitions in MgH2. Physical Review Letters.  ISSN 0031-9007.  89(175506) Vis sammendrag

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  • El-Kharbachi, Abdelouahab; Høgset, A.; Kim, Sangryun; Vajeeston, Ponniah; Sørby, Magnus Helgerud; Fjellvåg, Helmer; Orimo, Shin-ichi & Hauback, Bjørn (2018). Structural and Electrochemical Study of Mixtures of Halogenated-LiBH4 and Amorphous 0.75Li2S·0.25P2S5 for Li- Conducting Solid Electrolytes.
  • Hu, Yang; El-Kharbachi, Abdelouahab; Yoshida, Koji; Vajeeston, Ponniah; Sørby, Magnus Helgerud; Orimo, Shin-Ichi; Fjellvåg, Helmer & Hauback, Bjørn (2017). Ionic Properties of the borohydride-sulfide Mixed System for All-Solid Li-Ion Batteries.
  • Vajeeston, Ponniah (2017). Computational materials design for energy harvesting and energy storage materials.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2017). Computational materials design and characterisation for energy harvesting and energy storage materials.
  • Venkatachalapathy, Vishnukanthan; Ayedh, Hussein Mohammed Hussein; Vajeeston, Ponniah; Vines, Lasse; Monakhov, Edouard & Kuznetsov, Andrej (2017). Quest for Si based multi-junction solar cells covering the entire solar spectrum.
  • Venkatachalapathy, Vishnukanthan; Vajeeston, Ponniah; Vines, Lasse; Monakhov, Edouard & Kuznetsov, Andrej (2017). Ion irradiation induced phase transformation in crystalline Si.
  • Wragg, David; Sottmann, Jonas; Vajeeston, Ponniah & Ruud, Amund (2017). The intriguing mechanism of phosphorus anodes for sodium ion batteries Revealed by operando pair distribution function and X-ray diffraction computed tomography.
  • Wragg, David; Sottmann, Jonas; Vajeeston, Ponniah; Emerich, Hermann; Fjellvåg, Helmer; Hermann, Matthias; Hu, Yang; Ruud, Amund & Drathen, Christina (2016). Size Matters: How crystallite size controls reaction path in the sodium bismuth anode system.
  • Wragg, David; Sottmann, Jonas; Vajeeston, Ponniah; Sørby, Magnus Helgerud & Fjellvåg, Helmer (2016). Does the 3D Topological Dirac Semimetal Na3P Have More Than One Ground State?.
  • Rasakkannu, Muregesan; Vajeeston, Ponniah & Velauthapillai, Dhayalan (2015). Computational Modeling of New bulk materials for the Intermediate Band Solar cells.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). Computational materials design and characterisation for energy harvesting and energy storage materials.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). High-throughput computational materials design and characterisation for functional inorganic materials.
  • Vajeeston, Ponniah & Fjellvåg, Helmer (2015). Particle size reduction enhance the conductivity in Li2FeSiO4.
  • Vajeeston, Ponniah (2014). First-principles study of structural stability, dynamical and Mechanical properties of Li2FeSiO4 polymorphs.
  • Vajeeston, Ponniah (2013). Computational Studies of Materials for Hydrogen Storage in the Bulk and Nano phases.
  • Vajeeston, Ponniah (2013). Search for potential precursors for Si/SiO2-atomic layer deposition - a quantum chemical study.
  • 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), s 2711- 2712 . doi: 10.1016/j.ijhydene.2011.10.097
  • Vajeeston, Ponniah (2010). Materials characterisation from Density Functional theory.
  • Vajeeston, Ponniah (2010). Nanophase aspects of hydrogen storage materials - a theoretical study.
  • Karazhanov, Smagul; Ravindran, Ponniah; Ulyashin, Alexander; Vajeeston, Ponniah & Finstad, Terje (2006). Electronic Structure and Optical Properties of Indium Tin Oxide.
  • Ravindran, Ponniah; Vajeeston, Ponniah; Kjekshus, Arne & Fjellvåg, Helmer (2003). Chemical-bonding and High-pressure Studies on Hydrogen-storage Materials.
  • Vajeeston, Ponniah; Ravindran, Ponniah; Vidya, R.; Fjellvåg, Helmer & Kjekshus, Arne (2003). Design of Potential Hydrogen-storage Material using First-principle Density-functional Calculations.
  • Vidya, R.; Ravindran, Ponniah; Vajeeston, Ponniah; Fjellvåg, Helmer & Kjekshus, Arne (2003). Spin, charge, and orbital orderings in oxides with dual-valent transition-metal ions.

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Publisert 9. nov. 2010 14:26 - Sist endret 7. aug. 2013 11:58