16 citations · 24 across the 9 of their papers we have counts for
9 papers
Superconductivity mediated by nematic fluctuations -- the dispersion of collective modes
Kazi Ranjibul Islam, Andrey Chubukov
We analyze the spectrum of collective modes in a superconductor in which pairing is mediated by long-range nematic fluctuations. Previous experimental and theoretical studies have…
Spatially resolved collective modes in d-wave superconductors
Kazi Ranjibul Islam, Samuel Awelewa, Andrey V. Chubukov +1
We analyze the dispersion of collective modes in a superconductor with wave symmetry of the order parameter in the presence of long-range Coulomb interaction. We use diagrammat…
Origin of sublattice particle-hole asymmetry in monolayer FeSe superconductors
Mercè Roig, Kazi Ranjibul Islam, Basu Dev Oli +7
In iron-based superconductors, the two Fe atoms in the unit cell are typically related by crystal symmetries; therefore, we expect no intra-unit cell variations in the superconduct…
Generic deformation channels for critical Fermi surfaces including the impact of collisions
Kazi Ranjibul Islam, Aditya Savanur, Ipsita Mandal
This paper constitutes a sequel to our theoretical efforts to determine the nature of generic low-energy deformations of the Fermi surface of a quantum-critical metal, which arises…
Unconventional Superconductivity Mediated by Nematic Fluctuations in a Multi-Orbital System -- Application to doped FeSe
Kazi Ranjibul Islam, Andrey Chubukov
We analyze superconductivity in a multi-orbital fermionic system near the onset of a nematic order, using doped FeSe as an example. We associate nematicity with a spontaneous polar…
Unconventional Superconductivity near a Nematic Instability in a Multi-Orbital system
Kazi Ranjibul Islam, Andrey Chubukov
We analyze superconductivity in a multi-orbital fermionic system near the onset of a nematic order, using doped FeSe as an example. We associate the nematic order with spontaneous…
Generic deformation channels for critical Fermi surfaces in the collisionless regime
Kazi Ranjibul Islam, Ipsita Mandal
Using a quantum Boltzmann equation framework, we analyse the nature of generic low-energy deformations of a critical Fermi surface, which exists at the non-Fermi liquid fixed point…
Specific Heat and the gap structure of a Nematic Superconductor, application to FeSe
Kazi Ranjibul Islam, Jakob Böker, Ilya M. Eremin +1
We report the results of our in-depth analysis of spectroscopic and thermodynamic properties of a multi-orbital metal, like FeSe, which first develops a nematic order and then unde…
Collective modes of ultracold fermionic alkaline-earth gases with SU(N) symmetry
Sayan Choudhury, Kazi R. Islam, Yanhua Hou +3
We calculate the collective modes of ultracold trapped alkaline-earth fermionic atoms, which possess an SU() symmetry of the nuclear spin degree of freedom, and a controllable $…