Superconductivity in spin- systems: Symmetry classification, odd-frequency pairs, and Bogoliubov Fermi surfaces

P Dutta, F Parhizgar, AM Black-Schaffer - Physical Review Research, 2021 - APS
The possible symmetries of the superconducting pair amplitude is a consequence of the
fermionic nature of the Cooper pairs. For spin-1/2 systems this leads to the SPOT=− 1 …

Intrinsic superconducting diode effects in tilted Weyl and Dirac semimetals

K Chen, B Karki, P Hosur - Physical Review B, 2024 - APS
We explore Weyl and Dirac semimetals with tilted nodes as platforms for realizing an
intrinsic superconducting diode effect. Although tilting breaks sufficient spatial and time …

Quasiparticles-mediated thermal diode effect in Weyl Josephson junctions

P Chatterjee, P Dutta - New Journal of Physics, 2024 - iopscience.iop.org
We theoretically show quasiparticles-driven thermal diode effect (TDE) in an inversion
symmetry-broken Weyl superconductor (WSC)-Weyl semimetal (WSM)-WSC Josephson …

Ab initio based models for temperature-dependent magnetochemical interplay in bcc Fe-Mn alloys

A Schneider, CC Fu, O Waseda, C Barreteau, T Hickel - Physical Review B, 2021 - APS
Body-centered cubic (bcc) Fe-Mn systems are known to exhibit a complex and atypical
magnetic behavior from both experiments and 0 K electronic-structure calculations, which is …

Diamagnetic and paramagnetic Meissner effect from odd-frequency pairing in multiorbital superconductors

F Parhizgar, AM Black-Schaffer - Physical Review B, 2021 - APS
The Meissner effect is one of the defining properties of superconductivity, with a
conventional superconductor completely repelling an external magnetic field. In contrast to …

Josephson effect in type-I Weyl semimetals

D Sinha - Physical Review B, 2020 - APS
The emergent Weyl fermions in condensed matter generally break the Lorentz invariance,
resulting in a tilted (type-I) or overtilted (type-II) energy dispersion. The tilting energy spectra …

Josephson Spin-Valve Realization in the Magnetic Nodal-Line Topological Semimetal Fe3GeTe2

OO Shvetsov, YS Barash, AV Timonina, NN Kolesnikov… - JETP Letters, 2022 - Springer
Three-dimensional van der Waals ferromagnet Fe3GeTe2 (FGT) is regarded as a candidate
for the magnetic topological nodal line semimetal. We investigate lateral electron transport …

Andreev reflection for MnTe altermagnet candidate

DY Kazmin, VD Esin, YS Barash, AV Timonina… - arXiv preprint arXiv …, 2024 - arxiv.org
We experimentally study electron transport across a single planar junction between the
indium electrode and MnTe altermagnet candidate. We confirm standard Ohmic behavior …

Equilibrium current in a Weyl semimetal–superconductor heterostructure

KA Madsen, PW Brouwer, M Breitkreiz - Physical Review B, 2021 - APS
A heterostructure consisting of a magnetic Weyl semimetal and a conventional
superconductor exhibits an equilibrium current parallel to the superconductor interface and …

Edge-induced pairing states in a Josephson junction through a spin-polarized quantum anomalous Hall insulator

R Nakai, K Nomura, Y Tanaka - Physical Review B, 2021 - APS
Despite the robustness of the chiral edge modes of quantum Hall systems against the
superconducting proximity effect, Cooper pairs can penetrate into the chiral edge channels …