The Maiti Research Group focuses on the collective phenomena and quantum phases in low-dimensional systems. More specifically, our research interests include:
We are interested in studying low-dimensional systems like the lattice of Graphene, Kagome etc. (which are strictly 2D); and Fe and Cu based superconductors (which are quasi-2D). These systems can host a range of quantum phases like spin-liquid, unconventional superconductivity, magnetism, density waves, or any combination of them. We are also interested in understanding the role of various gauge fields in systems with a degenerate energy excitation spectrum.
Accounting for electronic correlations, we also look for unique signatures of the collective phenomena in such quantum phases. Some examples of such signatures are chiral-spin waves in spin-orbit coupled systems that can have potential application in Spintronics/Magnonics; and collective modes in superconductors that can provide insight into the pairing mechanism of high-Tc superconductors. We also work on computing experimentally observable quantities (like Raman, optical absorption spectrum) that can help detect these signatures and track the boundaries between various phases.
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. B104, 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. B102, 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. B100, 125428 (2019). doi:10.1103/PhysRevB.100.125428
Maiti, S. & Sedrakyan, T. Fermionization of bosons in a flat band. Phys. Rev. B99, 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 Materials3, 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. B95, 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. B96, 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
Maiti, S., Imran, M. & Maslov, D. L. Electron spin resonance in a two-dimensional Fermi liquid with spin-orbit coupling. Phys. Rev. B93, 045134 (2016). doi:10.1103/PhysRevB.93.045134
Maiti, S., Maier, T. A., Böhm, T., Hackl, R. & Hirschfeld, P. J. Probing the Pairing Interaction and Multiple Bardasis-Schrieffer Modes Using Raman Spectroscopy. Phys. Rev. Lett.117, 257001 (2016). doi:10.1103/PhysRevLett.117.257001
Linscheid, A., Maiti, S., Wang, Y., Johnston, S. & Hirschfeld, P. J. High T_c via Spin Fluctuations from Incipient Bands: Application to Monolayers and Intercalates of FeSe. Phys. Rev. Lett.117, 077003 (2016). doi:10.1103/PhysRevLett.117.077003
Lin, S.-Z., Maiti, S. & Chubukov, A. Distinguishing between s+id and s+is pairing symmetries in multiband superconductors through spontaneous magnetization pattern induced by a defect. Phys. Rev. B94, 064519 (2016). doi:10.1103/PhysRevB.94.064519
Cho, K., Kończykowski, M., Teknowijoyo, S., Tanatar, M. A., Liu, Y., Lograsso, T. A., Straszheim, W. E., Mishra, V., Maiti, S., Hirschfeld, P. J. & Prozorov, R. Energy gap evolution across the superconductivity dome in single crystals of (Ba1-xKx)Fe2As2. Science Advances2, (2016). doi:10.1126/sciadv.1600807
Chen, X., Mishra, V., Maiti, S. & Hirschfeld, P. J. Effect of nonmagnetic impurities on s± superconductivity in the presence of incipient bands. Phys. Rev. B94, 054524 (2016). doi:10.1103/PhysRevB.94.054524