Maiti Research Group

Overview

The Maiti Research Group focuses on the collective phenomena and quantum phases in low-dimensional systems. More specifically, our research interests include:

Collective phenomena
Spin-orbit coupled systems
Unconventional superconductors
Engineered 2D lattices

Research

We are interested in exploring and modelling new quantum phenomena in 2D systems (spin-orbit coupled materials or unconventional superconductors). Of particular interest is to understand the role of new emergent quantum degrees of freedom in the manifestation of these new properties which are almost always induced by electronic correlations. Thus, we also study effective ways to treat interactions. Once we discover some novel property, we study how it impacts observables such as IR spectroscopy, Raman scattering, THz Pump/Probe, or any probe that measures spin susceptibility, to make predictions to guide experiments or explain them.

We are also interested in studying engineered 2D lattices that exhibit exotic properties such as geometrically flat bands with the particular interest in exploring its topology and deriving observable effects of these bands. Another class of systems are 2D systems where strain could be modelled as a vector potential. We explore the consequences of this modelling equivalence.

Members

Principal investigator

Saurabh Maiti

Assistant Professor, Physics
saurabh.maiti@concordia.ca

Current members

Past members

Jonathan Discenza, BSc student
Colton Lelievre, BSc student
Joshua Emmerson, BSc student
Jeremie Mede Moussa, BSc student

Publications

For a full list of publications see arXiv.

Sarkar S, Maiti S., Electronic Raman response of a superconductor across a time reversal symmetry breaking phase transition, Phys. Rev. B, 109, 094515 (2024). doi:10.1103/PhysRevB.109.094515
Benek-Lins I., Maiti S., Many-body physics-induced selection rules: application to Raman spectroscopy, Phys.Rev.B, 109, 104505 (2024). doi:10.1103/PhysRevB.109.104505
Lee A.C., Sarkar S.,Du K., Kung H. -H., Won C. J. ,Wang K., Cheong S. -W., Maiti S., Blumberg G., Spin-mediated direct photon scattering by plasmons in BiTeI, Phys.Rev.B, 109, L041111 (2024) Editor’s Suggestion. doi:10.1103/PhysRevB.109.L041111
Sarkar S., Lee A.C., Blumberg G., Maiti S.,Spin-orbit interaction enabled electronic Raman scattering from charge collective modes, Phys.Rev.B, 109, 035160 (2024) Editor’s Suggestion. doi:10.1103/PhysRevB.109.035160
Bae J.-H., Sedrakyan T., Maiti S., Isolated flat bands in 2D lattices based on a novel path-exchange symmetry, SciPost Phys., 15,139 (2023). doi:10.21468/SciPostPhys.15.4.139
Maslov D. L., Kumar A., and Maiti S., Collective spin modes in Fermi liquids with spin-orbit coupling, invited review for Journal of Experimental and Theoretical Physics for the 95th birthday of Prof. Emmanuel I. Rashba, Journal of Experimental and Theoretical Physics, 135, 549 (2022). doi:10.1134/S1063776122100077
Kumar A., Maiti S., and D. Maslov D.L., Zero-field spin resonance in graphene with proximity-induced spin-orbit coupling, Phys. Rev. B 104, 155138 (2021). doi:10.1103/PhysRevB.104.155138
Chen X., Maiti S., Fernandes R.M., and Hirschfeld P.J., Nematicity and Superconductivity: Competition vs. Cooperation, Phys. Rev. B 102, 184512 (2020). doi:10.1103/PhysRevB.102.184512
Maiti, S. & Sedrakyan, T. A. Composite fermion state of graphene as a Haldane-Chern insulator. Phys. Rev. B 100, 125428 (2019). doi:10.1103/PhysRevB.100.125428
Maiti, S. & Sedrakyan, T. Fermionization of bosons in a flat band. Phys. Rev. B 99, 174418 (2019). doi:10.1103/PhysRevB.99.174418
Böhm, T., Kretzschmar, F., Baum, A., Rehm, M., Jost, D., Hosseinian Ahangharnejhad, R., Thomale, R., Platt, C., Maier, T. A., Hanke, W., Moritz, B., Devereaux, T. P., Scalapino, D. J., Maiti, S., Hirschfeld, P. J., Adelmann, P., Wolf, T., Wen, H.-H. & Hackl, R. Microscopic origin of Cooper pairing in the iron-based superconductor Ba1−xKxFe2As2. npj Quantum Materials 3, 48 (2018). doi:10.1038/s41535-018-0118-z
Maiti, S. & Maslov, D. L. Raman scattering in a two-dimensional Fermi liquid with spin-orbit coupling. Phys. Rev. B 95, 134425 (2017). doi:10.1103/PhysRevB.95.134425
Maiti, S., Chubukov, A. V. & Hirschfeld, P. J. Conservation laws, vertex corrections, and screening in Raman spectroscopy. Phys. Rev. B 96, 014503 (2017). doi:10.1103/PhysRevB.96.014503
Kung, H.-H., Maiti, S., Wang, X., Cheong, S.-W., Maslov, D. L. & Blumberg, G. Chiral Spin Mode on the Surface of a Topological Insulator. Phys. Rev. Lett. 119, 136802 (2017). doi:10.1103/PhysRevLett.119.136802

Talks

Zero-field spin resonances in spin-orbit coupled systems

Contact information

Please contact Saurabh Maiti by phone or email if you have any questions or need his assistance.

514-848-2424, ext. 5787
saurabh.maiti@concordia.ca
Saurabh Maiti's faculty profile

Mailing address

Saurabh Maiti
Department of Physics
7141 Sherbrooke St. W.
Montreal, Quebec
H4B 1R6, Canada