Academic interests
- Quantum technology
- Deep-level defects
- Density functional theory
- Electron-phonon coupling
- Jahn-Teller effect
My research focuses on quantum technology applications based on deep-level defects in semiconductors. I use first-principles density functional theory to investigate their electronic, vibrational and vibronic properties, with particular emphasis on electron–phonon coupling and modelling optical lineshapes. I am especially interested in developing computationally efficient approaches for accurately modeling vibrational and vibronic structure, enabling accurate predictions of emission and absorption spectra of quantum emitters in materials such as diamond, silicon and silicon carbide.
Background
- 2020-2025: PhD Physics, Center for Physical Sciences and Technology, Lithuania
- 2018-2020: MSc. Optoelectronics, Vilnius University, Lithuania
- 2014-2018: BSc. Applied Physics, Vilnius University, Lithuania
Partners
Center for Physical Sciences and Technology, Vilnius, Lithuania
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Žalandauskas, V., Silkinis, R., Vines, L., Razinkovas, L., & Bathen, M. E. (2025). Theory of the divacancy in 4H-SiC: impact of Jahn-Teller effect on optical properties. npj Computational Materials, 11(1), 155.
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Mohseni, M., Razinkovas, L., Žalandauskas, V., Thiering, G., & Gali, A. (2025). Magneto-optical properties of group-IV vacancy centers in diamond upon hydrostatic pressure. Physical Review B, 112(15), 155201.
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Silkinis, R., Maciaszek, M., Žalandauskas, V., Bathen, M. E., Vines, L., Alkauskas, A., & Razinkovas, L. (2025). Optical lineshapes of the C center in silicon from ab initio calculations: Interplay of localized modes and bulk phonons. Physical Review B, 111(12), 125136.
- Silkinis, R., Žalandauskas, V., Thiering, G., Gali, A., Van de Walle, C. G., Alkauskas, A., & Razinkovas, L. (2024). Optical lineshapes for orbital singlet to doublet transitions in a dynamical Jahn-Teller system: the NiV− center in diamond. Physical Review B, 110(7), 075303.
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Maciaszek, M., Žalandauskas, V., Silkinis, R., Alkauskas, A., & Razinkovas, L. (2023). The application of the SCAN density functional to color centers in diamond. The Journal of Chemical Physics, 159(8).
