Current Research

Quantum and 2D Materials -: The competition between various microscopic degrees of freedom in Quantum materials provides fertile ground to observe exotic ground states such as the Quantum Spin Liquid (QSL), a state which precludes long range ordering of spins even at absolute zero. Systems with QSL as their ground state are anticipated to be topologically active and to host exotic low energy fractionalized quasi-particle excitations. Our central focus is to probe and manipulate the quasi-particle excitations in quantum materials using Raman as a function of simultaneous different perturbations such as low temperature, strain and electric field. This also has the potential to open up doors to manipulate quantum degrees of freedom, i.e. electron spin and photon polarization, which are at the heart of quantum computation and communication. In 2D nanosystems, our focus is twofold first to explore and generate fundamental understanding about the exciting and challenging physics of 2D system

Recent Publications

1. Electron-Phonon Coupling, Thermal Expansion Coefficient, Resonance Effect and Phonon Dynamics in High Quality CVD Grown Mono and Bilayer MoSe2, Phys. Rev. B 105, 085419 (2022).
2. Fractional Spin fluctuations and quantum liquid signature in Gd2ZnIrO6, Phys. Rev. B 104, 134402 (2021).
3. Anisotropic Electron-Photon-Phonon Coupling in Layered MoS2, J. Phys.: Condens. Matter 32, 415702 (2020).
4. Kitaev Magnetism and Fractionalized Excitations in Double Perovskite Sm2ZnIrO6, Phys. Rev. Research 2, 013040 (2020).
5. Kramer doublets, phonons, crystal-field excitations and their coupling in Nd2ZnIrO6, Phys. Rev. Research 2, 023162 (2020).