114 citations · 336 across the 32 of their papers we have counts for
8 papers · 1 filter
Quasi-symmetry Constrained Spin Ferromagnetism in Altermagnets
Mercè Roig, Yue Yu, Rune C. Ekman +3
Altermagnets break time-reversal symmetry and their spin-orbit coupling (SOC) allow for an anomalous Hall effect (AHE) that depends on the direction of the Néel ordering vector. Th…
Nonreciprocal Equilibrium Josephson Effect of Arbitrary Periodicity from Poor Man's Majorana Zero Modes
Panagiotis Kotetes, Mercè Roig, Brian M. Andersen
We show that the Josephson diode effect becomes possible when two coupled antiferromagnetic dimers of point-like magnetic adatoms are deposited on top of a Rashba superconductor. T…
Signatures of Amorphous Shiba State in FeTeSe
Jinwon Lee, Sanghun Lee, Andreas Kreisel +7
The iron-based superconductor FeTeSe is a peculiar material: it hosts a surface state with a Dirac dispersion, is a putative topological superconductor hosting Ma…
Evidence chain for time-reversal symmetry-breaking kagome superconductivity
Hanbin Deng, Guowei Liu, Z. Guguchia +25
Superconductivity and magnetism are antagonistic quantum matter, while their intertwining has long been considered in frustrated-lattice systems1-3. In this work, we utilize scanni…
Unconventional pairing in Ising superconductors: Application to monolayer NbSe
Subhojit Roy, Andreas Kreisel, Brian M. Andersen +1
The presence of a non-centrosymmetric crystal structure and in-plane mirror symmetry allows an Ising spin-orbit coupling to form in some two-dimensional materials. Examples include…
Nonlocal electrodynamics and the penetration depth of superconducting SrRuO
Henrik S. Røising, Andreas Kreisel, Brian M. Andersen
The thermal quasiparticles in a clean type-II superconductor with line nodes give rise to a quadratic low-temperature change of the penetration depth, , as first shown…
Existence of Hebel-Slichter peak in unconventional kagome superconductors
Yi Dai, Andreas Kreisel, Brian M. Andersen
We perform a theoretical investigation of the spin susceptibility of unconventional superconductivity on the kagome lattice. Despite the existence of a sign-changing gap structure,…
Minimal Models for Altermagnetism
Mercè Roig, Andreas Kreisel, Yue Yu +2
Altermagnets feature vanishing net magnetization, like antiferromagnets, but exhibit time-reversal symmetry breaking and momentum-dependent spin-split band structures. Motivated by…