Light matter interaction
My research interests lie in the world of quantum materials with fascinating ground state properties such as charge density waves, quantum spin liquids, quantum magnetism, and superconductivity and topological properties. The underlying properties of these materials are probed using inelastic light Raman scattering technique under different external perturbations such as temperature, pressure, and magnetic field, where the intricate competing interactions between different degrees of freedom (spin, lattice, charge, and orbital degrees of freedom) are of particular research interest.
In addition to experimental work, I also use computational tools, such as density functional theory (DFT) and density functional perturbation theory (DFPT), to understand the electronic and structural properties of these materials. DFT allows us to calculate the electronic structure of the materials, which is critical for understanding the ground state properties of these quantum materials. DFPT, on the other hand, enables us to calculate the vibrational properties of the materials and provides insight into the coupling of the electric and lattice degrees of freedom.
Overall research aims to enhance our understanding of the these intricate and complex strongly comaterials and pave the way for the development of new quantum technologies.
Birender Singh
Postdoctoral Research Fellow
Boston College, USA
Recent updates:
Engineering Anomalously Large Electron Transport in Topological Semimetals, Advanced Materials 2310944 (2024) .Link
Anisotropic and high-mobility electronic transport in a quasi twodimensional antiferromagnet NdSb2, Advanced Functional Materials, 2308733 (2023).Link
Fluctuating Fractionalized Spins in Quasi Two-dimensional Magnetic V0.85PS3, Physical Review B 107,094417 (2023). Link
Orthorhombic charge density wave on the tetragonal lattice of EuAl4, IUCrJ 9, 378 (2022). Link
Superconductivity in Heusler compound ScAu2Al, Journal of Physics: Condensed Matter 34, 195403 (2022). Link
Topological phonons and electronic structure of Li2BaSi class of semimetals, Journal of Physics: Condensed Matter 34, 125502 (2022). Link
Fractional Spin fluctuations and quantum liquid signature in Gd2ZnIrO6 , Physical Review B 104, 134402 (2021) Link
Coupling of lattice, spin and intraconfigurational excitations of Eu3+ in Eu2ZnIrO6, Physical Review Research 2, 043179 (2020) Link
Kramers doublets, phonons, crystal-field excitations and their coupling in Nd2ZnIrO6, Physical Review Research 2, 023162 (2020) Link
Kitaev Magnetism and Fractionalized Excitations in Double Perovskite Sm2ZnIrO6, Physical Review Research 2, 013040 (2020) Link