Unconventional superconductivity

GR Stewart - Advances in Physics, 2017 - Taylor & Francis
'Conventional'superconductivity, as used in this review, refers to electron–phonon-coupled
superconducting electron pairs described by BCS theory. Unconventional superconductivity …

Spontaneous time-reversal symmetry breaking by disorder in superconductors

BM Andersen, A Kreisel, PJ Hirschfeld - Frontiers in Physics, 2024 - frontiersin.org
A growing number of superconducting materials display evidence for spontaneous time-
reversal symmetry breaking (TRSB) below their critical transition temperatures. Precisely …

Scanned probe imaging of nanoscale magnetism at cryogenic temperatures with a single-spin quantum sensor

M Pelliccione, A Jenkins, P Ovartchaiyapong… - Nature …, 2016 - nature.com
High-spatial-resolution magnetic imaging has driven important developments in fields
ranging from materials science to biology. However, to uncover finer details approaching the …

Disrupting long-range polar order with an electric field

H Guo, X Liu, F Xue, LQ Chen, W Hong, X Tan - Physical Review B, 2016 - APS
Electric fields are known to favor long-range polar order through the aligning of electric
dipoles in relation to Coulomb's force. Therefore, it would be surprising to observe a …

Spontaneous currents in superconducting systems with strong spin-orbit coupling

S Mironov, A Buzdin - Physical review letters, 2017 - APS
We show that Rashba spin-orbit coupling at the interface between a superconductor and a
ferromagnet should produce a spontaneous current in the atomic thickness region near the …

Edge currents as probe of topology in twisted cuprate bilayers

V Pathak, O Can, M Franz - Physical Review B, 2024 - APS
Bilayers made of the high-T c cuprate superconductor Bi 2 Sr 2 CaCu 2 O 8+ x assembled
with a twist angle close to 45∘ have been recently shown to spontaneously break time …

Superconducting spintronics: state of the art and prospects

AS Mel'nikov, SV Mironov, AV Samokhvalov, AI Buzdin - Uspekhi Fiz. Nauk, 2022 - ufn.ru
Significant progress has been achieved recently in a new field of low-temperature
electronics, the physics of superconducting hybrid systems based on superconductors (Ss) …

Enhanced chiral edge currents and orbital magnetic moment in chiral -wave superconductors from mesoscopic finite-size effects

P Holmvall, AM Black-Schaffer - Physical Review B, 2023 - APS
Chiral superconductors spontaneously break time-reversal symmetry and host topologically
protected edge modes, supposedly generating chiral edge currents which are typically taken …

Robust and tunable coreless vortices and fractional vortices in chiral -wave superconductors

P Holmvall, N Wall-Wennerdal, AM Black-Schaffer - Physical Review B, 2023 - APS
Chiral d-wave superconductivity has recently been proposed in a wide range of materials
based on both experiment and theoretical studies. Chiral superconductors host a finite …

Spontaneous splitting of -wave surface states: Competition between circulating currents and edge magnetization

KM Seja, N Wall-Wennerdal, T Löfwander… - Physical Review B, 2024 - APS
Pair-breaking edges of d-wave superconductors feature Andreev bound states at the Fermi
energy. Since these states are energetically highly unfavorable they are susceptible to …