Saurabh Maiti
Assistant Professor, Physics
Email: saurabh.maiti@concordia.ca
Maiti Research Group
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
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.
Principal investigator
Current members
Surajit Sarkar
Postdoctoral fellow
Email: surajit.sarkar@concordia.ca
Igor Benek-Lins
Ph.D. student
Email: igor.beneklins@concordia.ca
Jun Hyung Bae
Ph.D. student
Email: junhyung.bae@concordia.ca
Mojdeh Saleh
Ph.D. student
Email: mojdeh.saleh@concordia.ca
Rami Zemouri
B.Sc. student
Email: rami.zemouri@concordia.ca
Past members
- Jonathan Discenza, B.Sc. student
- Colton Lelievre, B.Sc. student
- Joshua Emmerson, B.Sc. student
- Jeremie Mede Moussa, B.Sc. student
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