Indian Institute of Technology Mandi | India
Dr. Vivek Kumar is a physicist at the Indian Institute of Technology (IIT) Mandi, School of Physical Sciences, where he earned his Ph.D. in Physics. His research focuses on quantum materials, quantum spin liquids, Raman spectroscopy, and density functional theory (DFT). Dr. Kumar has made significant contributions to understanding phonon dynamics, fractional spin fluctuations, and quantum liquid behavior in low-dimensional magnetic and topological systems. His notable publications include works in Physical Review B, 2D Materials, Annalen der Physik, and Physica Status Solidi (RRL), exploring complex phenomena such as electron-phonon coupling, Mott transitions, and the interplay of topology with magnetism in van der Waals materials. He has authored 6 research documents, which have collectively garnered 33 citations from 28 sources, reflecting the growing recognition of his contributions within the condensed matter physics community. With an h-index of 4, Dr. Kumar continues to advance the understanding of correlated quantum systems through both experimental Raman studies and first-principles simulations. His research excellence underscores the pursuit of novel states of matter in two-dimensional materials, offering promising directions for future quantum technologies and materials innovation.
Featured Publications
Kumar, D., Kumar, V., Kumar, R., Kumar, M., & Kumar, P. (2022). Electron-phonon coupling, thermal expansion coefficient, resonance effect, and phonon dynamics in high-quality CVD-grown monolayer and bilayer MoSe₂. Physical Review B, 105(8), 085419. https://doi.org/10.1103/PhysRevB.105.085419
Kumar, V., Kumar, D., Singh, B., Shemerliuk, Y., Behnami, M., Büchner, B., Aswartham, S., & Kumar, P. (2023). Fluctuating fractionalized spins in quasi-two-dimensional magnetic V₀.₈₅PS₃. Physical Review B, 107(9), 094417. https://doi.org/10.1103/PhysRevB.107.094417
Singh, B., Kumar, D., Kumar, V., Vogl, M., Wurmehl, S., Aswartham, S., Büchner, B., & Kumar, P. (2021). Fractional spin fluctuations and quantum liquid signature in Gd₂ZnIrO₆. Physical Review B, 104(13), 134402. https://doi.org/10.1103/PhysRevB.104.134402
Khan, N., Kumar, D., Kumar, V., Shemerliuk, Y., Selter, S., Büchner, B., Pal, K., Aswartham, S., & Kumar, P. (2024). The interplay of topology and antiferromagnetic order in two-dimensional van der Waals crystals of (NiₓFe₁₋ₓ)₂P₂S₆. 2D Materials, 11(3), 035018. https://doi.org/10.1088/2053-1583/ad3e0a
Kumar, V., Shemerliuk, Y., Behnami, M., Büchner, B., Aswartham, S., & Kumar, P. (2025). Dynamics of phonons and magnetic continuum in thin flakes of V(1−X)PS₃. Physical Review Materials, 9(7), 076201. https://doi.org/10.1103/pb66-73sc