168 citations · 1.6k across the 37 of their papers we have counts for
37 papers
Spin-orbit interaction enabled electronic Raman scattering from charge collective modes
Surajit Sarkar, Alexander Lee, Girsh Blumberg +1
Electronic Raman scattering in the fully symmetric channel couples to the charge excitations in the system, including the plasmons. However, the plasmon response has a spectral wei…
Isolated flat bands in 2D lattices based on a novel path-exchange symmetry
Jun-Hyung Bae, Tigran Sedrakyan, Saurabh Maiti
The increased ability to engineer two-dimensional (2D) systems, either using materials, photonic lattices, or cold atoms, has led to the search for 2D structures with interesting p…
Collective spin modes in Fermi liquids with spin-orbit coupling
Dmitrii L. Maslov, Abhishek Kumar, Saurabh Maiti
A combination of spin-orbit coupling and electron-electron interaction gives rise to a new type of collective spin modes, which correspond to oscillations of magnetization even in…
Zero-field spin resonance in graphene with proximity-induced spin-orbit coupling
Abhishek Kumar, Saurabh Maiti, Dmitrii L. Maslov
We investigate collective spin excitations in graphene with proximity-induced spin-orbit coupling (SOC) of the Rashba and valley-Zeeman types, as it is the case, e.g., for graphene…
Nematicity and superconductivity: Competition versus cooperation
Xiao Chen, S. Maiti, R. M. Fernandes +1
Electronic nematic behavior has been identified and studied in iron-based superconductors for some time, particularly in the well-known BaFeAs system, where it is well-know…
Is the composite fermion state of Graphene a doped Chern insulator?
Saurabh Maiti, Tigran Sedrakyan
Graphene in the presence of a strong external magnetic field is a unique attraction for investigations of the fractional quantum Hall (fQH) states with odd and even denominators of…
Fermionization of Bosons in a Flat Band
Saurabh Maiti, Tigran A. Sedrakyan
Strongly interacting bosons that live in a lattice with degeneracy in its lowest energy band experience frustration that can prevent the formation of a Bose-Einstein condensate. Su…
Dynamic cloaking effect of a vector barrier in bilayer graphene
S. Maiti, R. Biswas, C. Sinha
Transmission profiles in bilayer graphene have been studied theoretically in presence of a pair of delta function magnetic barriers. Two types of asymmetric Fano resonances are dis…
Chiral Spin Mode on the Surface of a Topological Insulator
H. -H. Kung, S. Maiti, X. Wang +3
Using polarization-resolved resonant Raman spectroscopy, we explore collective spin excitations of the chiral surface states in a three dimensional topological insulator, BiSe$…
Conservation laws, vertex corrections, and screening in Raman spectroscopy
Saurabh Maiti, Andrey Chubukov, P. J. Hirschfeld
We present a microscopic theory for the Raman response of a clean multiband superconductor accounting for the effects of vertex corrections and long-range Coulomb interaction. The…
Microscopic pairing fingerprint of the iron-based superconductor
Thomas Böhm, Florian Kretzschmar, Andreas Baum +16
Resolving the microscopic pairing mechanism and its experimental identification in unconventional superconductors is among the most vexing problems of contemporary condensed matter…
Raman Scattering by a Two-Dimensional Fermi Liquid with Spin-Orbit Coupling
Saurabh Maiti, Dmitrii L. Maslov
We present a microscopic theory of Raman scattering by a two-dimensional Fermi liquid (FL) with Rashba and Dresselhaus types of spin-orbit coupling, and subject to an in-plane magn…
Probing the pairing interaction and multiple Bardasis-Schrieffer modes using Raman spectroscopy
S. Maiti, T. A. Maier, T. Boehm +2
In unconventional superconductors, understanding the form of the pairing interaction is the primary goal. In this regard, Raman spectroscopy is a very useful tool, as it identifies…
Electron transmission through a periodically driven graphene magnetic barrier
R. Biswas, S. Maiti, C. Sinha
The kinetic transport of electrons through graphene magnetic barriers is studied theoretically in presence of an external time harmonic scalar potential. The transmission coefficie…
Distinguishing between and pairing symmetries in multiband superconductors through spontaneous magnetization pattern induced by a defect
Shi-Zeng Lin, Saurabh Maiti, Andrey Chubukov
The symmetry of the pairing state in iron pnictide superconductor is still controversial. At optimal doping (), it is very likely -…
Effect of nonmagnetic impurities on superconductivity in the presence of incipient bands
X. Chen, V. Mishra, S. Maiti +1
Several Fe chalcogenide superconductors without hole pockets at the Fermi level display high temperature superconductivity, in apparent contradiction to naive spin fluctuation pair…
Energy Gap Evolution Across the Superconductivity Dome in Single Crystals of (BaK)FeAs
Kyuil Cho, M. Konczykowski, S. Teknowijoyo +8
The mechanism of unconventional superconductivity in iron-based superconductors (IBSs) is one of the most intriguing questions in current materials research. Among non-oxide IBSs,…
High Tc via spin fluctuations from incipient bands: application to monolayers and intercalates of FeSe
A. Linscheid, S. Maiti, Y. Wang +2
We investigate superconductivity in a two-band system with an electron- and hole-like band, where one of the bands is away from the Fermi level (or incipient). We argue that the in…
Electron Spin Resonance in a Two-Dimensional Fermi Liquid with Spin-Orbit Coupling
Saurabh Maiti, Muhammad Imran, Dmitrii L. Maslov
Electron spin resonance (ESR) is usually interpreted as a single-particle phenomenon protected from the effect of many-body correlations. We show that this is not the case in a two…
Electron pairing in the presence of incipient bands in iron-based superconductors
Xiao Chen, S. Maiti, A. Linscheid +1
Recent experiments on certain Fe-based superconductors have hinted at a role for paired electrons in "incipient" bands that are close to, but do not cross the Fermi level. Related…
Collective modes in superconductors with competing s- and d-wave interactions
Saurabh Maiti, P. J. Hirschfeld
We calculate the collective mode spectrum in models of superconductors with attractive interactions in s-and d channels as a function of their relative strength, across a phase dia…
Intrinsic Damping of Collective Spin Modes in a Two-Dimensional Fermi Liquid with Spin-Orbit Coupling
Saurabh Maiti, Dmitrii L. Maslov
A Fermi liquid with spin-orbit coupling (SOC) is expected to support a new kind of collective modes: oscillations of magnetization in the absence of the magnetic field. We show tha…
Spontaneous currents in a superconductor with s+is symmetry
Saurabh Maiti, Manfred Sigrist, Andrey Chubukov
We analyze state proposed as a candidate superconducting state for strongly hole-doped BaKFeAs. Such a state breaks time-reversal symmetry (TRS) but do…
Collective modes in two- and three-dimensional electron systems with Rashba spin-orbit coupling
Saurabh Maiti, Vladimir Zyuzin, Dmitrii L. Maslov
In addition to charge plasmons, a 2D electron system with Rashba-type spin-orbit coupling (SOC) also supports three collective modes in the spin sector: the chiral-spin modes. We s…