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We have measured the effect of microwave irradiation on the dc current-voltage characteristics of superconducting atomic contacts. The interaction of the external field with the ac supercurrents leads to replicas of the supercurrent peak,…

Mesoscale and Nanoscale Physics · Physics 2007-08-30 M. Chauvin , P. Vom Stein , H. Pothier , P. Joyez , M. E. Huber , D. Esteve , C. Urbina

For systems with charged chiral fermions, the imbalance of chirality in the presence of magnetic field generates an electric current - this is the Chiral Magnetic Effect (CME). We study the dynamical real-time evolution of electromagnetic…

High Energy Physics - Theory · Physics 2016-01-29 Yuji Hirono , Dmitri Kharzeev , Yi Yin

The thermoelectric properties of a three-terminal quantum Hall conductor are investigated. We identify a contribution to the thermoelectric response that relies on the chirality of the carrier motion rather than on spatial asymmetries. The…

Mesoscale and Nanoscale Physics · Physics 2015-04-13 Rafael Sánchez , Björn Sothmann , Andrew N. Jordan

We describe square lattice spin liquids which break time-reversal symmetry, while preserving translational symmetry. The states are distinguished by the manner in which they transform under mirror symmetries. All the states have non-zero…

Strongly Correlated Electrons · Physics 2018-12-19 Mathias S. Scheurer , Subir Sachdev

We demonstrate that two-dimensional chiral superconductors on curved surfaces spontaneously develop magnetic flux. This geometric Meissner effect provides an unequivocal signature of chiral super- conductivity, which could be observed in…

Superconductivity · Physics 2018-06-06 T. Kvorning , T. H. Hansson , A. Quelle , C. Morais Smith

We argue that strain applied to a time-reversal and inversion breaking Weyl semi-metal in a magnetic field can induce an electric current via the chiral magnetic effect. A tight binding model is used to show that strain generically changes…

Mesoscale and Nanoscale Physics · Physics 2016-12-28 Alberto Cortijo , Dmitri Kharzeev , Karl Landsteiner , María A. H. Vozmediano

We present a low-energy effective-mass theory to describe chiral orbital current and anomalous magnetic moment in graphenes with band gap and related materials. We show that a Bloch electron generally contains an anomalous current density…

Mesoscale and Nanoscale Physics · Physics 2015-05-28 Mikito Koshino

Chiral $d$-wave superconductivity has been proposed in a number of different materials, but characteristic experimental fingerprints have been largely lacking. We show that quadruply quantized coreless vortices are prone to form and offer…

Superconductivity · Physics 2023-10-09 Patric Holmvall , Annica M. Black-Schaffer

The chiral p-wave superconducting state is comprised of spin triplet Cooper pairs carrying a finite orbital angular momentum. For the case of a periodic lattice, calculating the net magnetisation arising from this orbital component presents…

Superconductivity · Physics 2020-04-15 Joshua Robbins , James F. Annett , Martin Gradhand

We report that spin supercurrents in magnetic superconductors and superconductor/ferromagnetic insulator bilayers can induce the Dzyaloshinskii-Moriya interaction which strength is proportional to the superconducting order parameter…

Superconductivity · Physics 2021-08-23 M. A. Silaev , D. S. Rabinovich , I. V. Bobkova

We present a formulation of the quasiclassical theory of junctions between itinerant antiferromagnets (AF) and s-wave (sSC) and d-wave superconductors (dSC). For the simplest two-sublattice antiferromagnet on a bipartite lattice, we derive…

Superconductivity · Physics 2009-11-10 I. V. Bobkova , P. J. Hirschfeld , Yu. S. Barash

We study a $T=0$ quantum phase transition between a quantum paramagnetic state and a magnetically ordered state for a spin $S=1$ XXZ Heisenberg antiferromagnet on a two-dimensional triangular lattice. The transition is induced by an easy…

Strongly Correlated Electrons · Physics 2017-11-08 Zhentao Wang , Adrian E. Feiguin , Wei Zhu , Oleg A. Starykh , Andrey V. Chubukov , Cristian D. Batista

We study Dirac fermions in the presence of a space-dependent chiral gauge field and thermodynamic gradients, establishing a connection to the inverse spin Hall effect. The chiral gauge field induces a chiral magnetic field, resulting in a…

Mesoscale and Nanoscale Physics · Physics 2024-10-10 Hung-Hsuan Teh , Tokiro Numasawa , Shun Okumura , Takashi Oka

We investigate the chiral dynamics of locally interacting bosons in a two-leg flux ladder, where on-site interactions, despite being fully isotropic, counterintuitively reverse the flux-induced chiral transport of density distribution. For…

Quantum Gases · Physics 2026-01-21 Li Pan , Qian Liang , Chang-An Yang , Yu Huang , Pengjie Liu , Fanying Xi , Wei Yi , Xiaofan Zhou , Jian-Song Pan

We examine the appearance of a spontaneous bulk spin current in a triplet superconductor in contact with a metallic ferromagnet. The spin current results from the spin-flip of Cooper pairs upon reflection from the interface with the…

Superconductivity · Physics 2009-12-23 P. M. R. Brydon

Non-linear electrodynamics of a ring-shaped Andreev interferometer (superconductor-normal conductor-superconductor hybrid structure) inductively coupled to a circuit of the dissipative current is investigated. The current-voltage…

Superconductivity · Physics 2009-11-10 A. Kadigrobov

The prospect of combining the dissipationless nature of superconducting currents with the spin-polarization of magnetic materials is interesting with respect to exploring superconducting analogues of topics in spintronics. In order to…

Mesoscale and Nanoscale Physics · Physics 2015-06-22 Iryna Kulagina , Jacob Linder

We show that a chiral spin liquid spontaneously emerges in partially amorphous, polycrystalline, or ion-irradiated Kitaev materials. In these systems, time-reversal symmetry is broken spontaneously due to a non-zero density of plaquettes…

Strongly Correlated Electrons · Physics 2023-05-05 Adolfo G. Grushin , Cécile Repellin

Electronic interactions can give rise to novel charge density waves with unconventional ground states. Recent experiments report evidence for a chiral charge density wave (CDW) that breaks time-reversal symmetry in the kagome metals…

A boundary between two d-wave superconductors or an s-wave and a d-wave superconductor generally breaks time-reversal symmetry and can generate spontaneous currents due to proximity effect. On the other hand, surfaces and interfaces in…

Superconductivity · Physics 2009-10-31 M. H. S. Amin , A. N. Omelyanchouk , A. M. Zagoskin