295 citations · 3.3k across the 91 of their papers we have counts for
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Probing pairing symmetries through quasiparticle interference in chiral Bloch bands
Sayan Banerjee, Subrata Mandal, Peter P. Orth +1
Recent experiments in van der Waals multi-layer systems have demonstrated that superconductivity can emerge from symmetry-reduced, chiral normal states. We here provide a theory fo…
Correlations between superconducting and resistive anisotropies
Sayan Banerjee, Harley D. Scammell, Mathias S. Scheurer
There are multiple possible origins of transport anisotropies in metals and superconductors. For instance, rotational symmetry can be spontaneously broken in the normal state as a…
Quantum geometry and impurity sensitivity of superconductors without time-reversal symmetry: application to rhombohedral graphene and altermagnets
Denis Sedov, Mathias S. Scheurer
Analyzing the consequences of the quantum geometry induced by the momentum dependence of Bloch states has emerged as a very rich and active field in condensed matter physics. For i…
Vestigial pairing from fluctuating magnetism and triplet superconductivity
Yanek Verghis, Denis Sedov, Jakob Weßling +2
We study the finite-temperature vestigial superconducting phases of a two-dimensional system of fluctuating spin-triplet pairing and spin magnetism. Denoting the respective primary…
Ising superconductivity in bulk layered non-centrosymmetric 4H-NbSe2
Chandan Patra, Tarushi Agarwal, Rahul Verma +6
Transition metal dichalcogenides exhibit multiple polymorphs that enable the exploration of diverse quantum states, including valley-selective spin polarization, the valley Hall ef…
Probing Vortex Dynamics in 2D Superconductors with Scanning Quantum Microscope
Sreehari Jayaram, Malik Lenger, Dong Zhao +9
The visualization of the magnetic responses of a two-dimensional (2D) superconducting material on the nanoscale is a powerful approach to unravel the underlying supercurrent behavi…
Probing superconductivity with tunneling spectroscopy in rhombohedral graphene
Denis Sedov, Mathias S. Scheurer
Motivated by experiments on rhombohedral tetralayer graphene showing signs of superconductivity emerging from a valley-polarized normal state, we here analyze theoretically how sca…
Intrinsic superconducting diode effect and nonreciprocal superconductivity in rhombohedral graphene multilayers
Yinqi Chen, Mathias S. Scheurer, Constantin Schrade
Recent experiments have revealed that superconductivity in rhombohedral tetralayer graphene can emerge from a valley-polarized and, hence, chiral normal state. The interplay of pai…
Probing the flat-band limit of the superconducting proximity effect in Twisted Bilayer Graphene Josephson junctions
A. Diez-Carlon, J. Diez-Merida, P. Rout +13
While extensively studied in normal metals, semimetals and semiconductors, the superconducting (SC) proximity effect remains elusive in the emerging field of flat-band systems. In…
Eliashberg Theory and Superfluid Stiffness of Band-Off-Diagonal Pairing in Twisted Graphene
Bernhard Putzer, Mathias S. Scheurer
Recently, band-off-diagonal superconductivity has been proposed [Nat. Commun. 14, 7134 (2023)] as a candidate pairing state for twisted graphene systems. Based on mean-field theory…
Dissipation-enhanced non-reciprocal superconductivity: application to multi-valley superconductors
Sayan Banerjee, Mathias S. Scheurer
We here propose and study theoretically a non-equilibrium mechanism for the superconducting diode effect, which applies specifically to the case where time-reversal-symmetry -- a p…
Adatom engineering magnetic order in superconductors: Applications to altermagnetic superconductivity
Lucas V. Pupim, Mathias S. Scheurer
We study theoretically how superlattices based on adatoms on surfaces of unconventional superconductors can be used to engineer novel pairing states that break time-reversal symmet…
Approximate symmetries, insulators, and superconductivity in continuum-model description of twisted WSe
Maine Christos, Pietro M. Bonetti, Mathias S. Scheurer
Motivated by the recent discovery of superconductivity in twisted bilayer WSe, we analyze the correlated physics in this system in the framework of a continuum model for the mo…
Altermagnetic superconducting diode effect
Sayan Banerjee, Mathias S. Scheurer
Non-reciprocal superconductivity, also known as the superconducting diode effect, has been extensively studied in the presence of a magnetic field or some form of ferromagnetic ord…
Electron irradiation reveals robust fully gapped superconductivity in LaNiGa
S. Ghimire, K. R. Joshi, E. H. Krenkel +8
The effects of 2.5 MeV electron irradiation were studied in the superconducting phase of single crystals of LaNiGa, using measurements of electrical transport and radio-frequen…
Broken time-reversal symmetry in cubic skutterudite-like superconductor YRuGe
A. Kataria, J. A. T. Verezhak, O. Prakash +6
The microscopic properties of superconducting cubic skutterudite-like material YRuGe are investigated using muon spin relaxation and rotation (SR) measurements. Z…
Anisotropic multiband superconductivity in 2M-WS probed by controlled disorder
Sunil Ghimire, Kamal R. Joshi, Marcin Konczykowski +10
The intrinsically superconducting Dirac semimetal 2M-WS is a promising candidate to realize proximity-induced topological superconductivity in its protected surface states. A…
Enhanced Superconducting Diode Effect due to coexisting Phases
Sayan Banerjee, Mathias S. Scheurer
The superconducting diode effect refers to an asymmetry in the critical supercurrent along opposite directions, . While the basic sym…
Nodal band-off-diagonal superconductivity in twisted graphene superlattices
Maine Christos, Subir Sachdev, Mathias S. Scheurer
The superconducting state and mechanism are among the least understood phenomena in twisted graphene systems. For instance, recent tunneling experiments indicate a transition betwe…
Vestigial singlet pairing in a fluctuating magnetic triplet superconductor: Applications to graphene moiré systems
Prathyush P. Poduval, Mathias S. Scheurer
Motivated by the phenomenology of graphene moiré superlattices, we study a 2D model with strong tendencies towards both magnetism and triplet superconductivity. Individually, their…
Time-reversal symmetry breaking in superconducting low-carrier-density quasi-skutterudite Lu3Os4Ge13
A. Kataria, J. A. T. Verezhak, O. Prakash +6
The complex structure of the Remeika phases, the intriguing quantum states they display, and their low carrier concentrations are a strong motivation to study the nature of their s…
Time-reversal-symmetry Breaking in the Superconducting State of ScS
Arushi, R. K. Kushwaha, D. Singh +3
We have studied the electronic properties of ScS, a transition-metal monochalcogenide with rocksalt crystal structure, using magnetization, specific heat, transport, and muon spin…
Possible unconventional pairing in superconductors revealed by controlling disorder
E. H. Krenkel, M. A. Tanatar, M. Konczykowski +11
We study the evolution of temperature-dependent resistivity with controlled point-like disorder induced by 2.5 MeV electron irradiation in stoichiometric compositions of the "3-4-1…
Time-reversal symmetry breaking and multigap superconductivity in the noncentrosymmetric superconductor LaNi
Arushi, D. Singh, A. D. Hillier +2
The ThFe family of superconductors provides a rich playground for unconventional superconductivity. LaNi is the latest member of this family, which we here inve…