47 citations · 245 across the 20 of their papers we have counts for
20 papers
Perfect superconducting diode effect in altermagnets
Debmalya Chakraborty, Annica M. Black-Schaffer
We investigate intrinsic superconducting diode effect in the unconventional superconducting state of -wave altermagnets. We find large diode efficiencies in the wide-reaching fi…
Constraints on superconducting pairing in altermagnets
Debmalya Chakraborty, Annica M. Black-Schaffer
Superconductivity in the recently discovered altermagnetic materials hosts large prospects for both fundamental physics and technological applications. In this work we show that a…
Zero-field finite-momentum and field-induced superconductivity in altermagnets
Debmalya Chakraborty, Annica M. Black-Schaffer
We explore the possibilities for spin-singlet superconductivity in newly discovered altermagnets. Investigating -wave altermagnets, we show that finite-momentum superconductivit…
Interaction-driven first-order and higher-order topological superconductivity
Pietro M. Bonetti, Debmalya Chakraborty, Xianxin Wu +1
We investigate topological superconductivity in the Rashba-Hubbard model, describing heavy-atom superlattice and van der Waals materials with broken inversion. We focus in particul…
Crossover between electron-electron and electron-phonon mediated pairing on the Kagome lattice
Xianxin Wu, Debmalya Chakraborty, Andreas P. Schnyder +1
We study electron-electron and electron-phonon mediated pairing in the Holstein extended Hubbard model on the Kagome lattice near the van Hove fillings, and investigate their combi…
Interplay of finite-energy and finite-momentum superconducting pairing
Debmalya Chakraborty, Annica M. Black-Schaffer
Understanding the nature of Cooper pairs is essential to describe the properties of superconductors. The original proposal of Bardeen, Cooper, and Schrieffer (BCS) was based on ele…
Quasiparticle interference as a direct experimental probe of bulk odd-frequency superconducting pairing
Debmalya Chakraborty, Annica M. Black-Schaffer
We show that quasiparticle interference (QPI) due to omnipresent weak impurities and probed by Fourier transform scanning tunneling microscopy and spectroscopy acts as a direct exp…
Disorder-robust phase crystal in high-temperature superconductors stabilized by strong correlations
Debmalya Chakraborty, Tomas Löfwander, Mikael Fogelström +1
The simultaneous interplay of strong electron-electron correlations, topological zero-energy states, and disorder is yet an unexplored territory but of immense interest due to thei…
Odd-frequency pair density wave correlations in underdoped cuprates
Debmalya Chakraborty, Annica M. Black-Schaffer
Pair density waves, identified by Cooper pairs with finite center-of-mass momentum, have recently been observed in copper oxide based high T superconductors (cuprates)…
Electronic spectral function in fractionalized Pair Density Wave scenario
Maxence Grandadam, Debmalya Chakraborty, Xavier Montiel +1
Studies of the electronic spectral function in cuprates by Angle-Resolved Photo-Emission Spectroscopy reveal unusual features in the pseudogap phase that persist in the superconduc…
Fractionalizing a local pair density wave: a good "recipe" for opening a pseudo-gap
Maxence Grandadam, Debmalya Chakraborty, Catherine Pépin
We give a concise version of a recently proposed concept of fractionalization of an order parameter, thus generating a constraint through a fictitious gauge field. We argue that th…
Fluctuations and Higgs mechanism in Under-Doped Cuprates: a Review
C. Pépin, D. Chakraborty, M. Grandadam +1
The physics of the pseudo-gap phase of high temperature cuprate superconductors has been an enduring mystery in the past thirty years. The ubiquitous presence of the pseudo-gap pha…
Incipient loop current order in the under-doped cuprate superconductors
Saheli Sarkar, Debmalya Chakraborty, Catherine Pépin
There are growing experimental evidence which indicate discrete symmetry breaking like time-reversal (), parity () and C lattice rotation in the pse…
Fractionalized pair density wave in the pseudo-gap phase of cuprate superconductors
D. Chakraborty, M. Grandadam, M. H. Hamidian +3
The mysterious pseudo-gap (PG) phase of cuprate superconductors has been the subject of intense investigation over the last thirty years, but without a clear agreement about its or…
Collective mode in the SU(2) theory of cuprates
Corentin Morice, Debmalya Chakraborty, Catherine Pépin
Recent advances in momentum-resolved electron energy-loss spectroscopy (MEELS) and resonant inelastic X-ray scattering (RIXS) now allow one to access the charge response function w…
The phase diagram of the underdoped cuprates at high magnetic field
Debmalya Chakraborty, Corentin Morice, Catherine Pépin
The experimentally measured phase diagram of cuprate superconductors in the temperature-applied magnetic field plane illuminates key issues in understanding the physics of these ma…
Effective pairing theory for strongly correlated d-wave superconductors
Debmalya Chakraborty, Nitin Kaushal, Amit Ghosal
Motivated by recent proposals of correlation induced insensitivity of d-wave superconductors to impurities, we develop a simple pairing theory for these systems for up to a moderat…
Pseudo-spin Skyrmions in the Phase Diagram of Cuprate Superconductors
Corentin Morice, Debmalya Chakraborty, Xavier Montiel +1
Topological states of matter are at the root of some of the most fascinating phenomena in condensed matter physics. Here we argue that skyrmions in the pseudo-spin space related to…
From immunity to sudden death: Effects of strong disorder in strongly correlated superconductors
Debmalya Chakraborty, Rajdeep Sensarma, Amit Ghosal
We investigate the effect of strong disorder on a system with strong electronic repulsion. In absence of disorder, the system has a d-wave superconducting ground-state with strong…
Fate of disorder-induced inhomogeneities in strongly correlated d-wave superconductors
Debmalya Chakraborty, Amit Ghosal
We analyze the complex interplay of the strong correlations and impurities in a high temperature superconductor and show that both the nature and degree of the inhomogeneities at z…