A long-sought demonstration of broken time-reversal symmetry in bulk SrRuOis the observation of edge currents, which has so far not been successful. The situation for UPtis not much better. Here, we use vortices to probe the superconducting state in ultraclean crystals of UPt. Using small-...
Prosen. Thermopower with broken time-reversal symmetry. Phys. Rev. B, 84:201306(R), 2011.K. Saito, G. Benenti, G. Casati, and T. Prosen. Thermopower with broken time-reversal symmetry. Phys. Rev. B, 84:201306, 2011.K. Saito, G. Benenti, G. Casati, and T. Prosen, Thermopower ...
In this article, we investigate origins of Berry's geometric phase and show that they are in general attributable to the broken time-reversal symmetry of the system. Our analysis leads to the classification of Berry's phase for Hamiltonian systems in terms of symmetry properties under time-...
Weyl points are discrete locations in the three-dimensional momentum space where two bands cross linearly with each other. They serve as the monopoles of Berry curvature in the momentum space, and their existence requires breaking of either time-reversal or inversion symmetry1,2,3,4,5,6,7,8,...
Here we show[2] that in a perpendicular magnetic field, in addition to the above mentioned symmetries, the order parameter also breaks time reversal symmetry. As a result, Cooper pairs carry non-zero angular momenta. The above mentioned effects are expected to be of the order of unity in ...
We propose a self-consistent scheme for the determination of the ground-state (GS) properties of interacting electrons in a magnetic field, and of systems whose GSs time-reversal-symmetry (TRS) is spontaneously broken. It is based on a newly-developed many-body perturbation theory that is valid...
Absence of broken time reversal symmetry beneath the surface of YBCO films We report the results of a search for spontaneous magnetism due to a time reversal symmetry breaking phase in the superconducting state of (110)-oriented YBCO films, expected near the surface in this geometry. Zero field...
Superconductivity with broken time reversal symmetry in ion irradiated Ba$_{0.27}$K$_{0.73}$Fe$_2$As$_2$ single crystals Over the last years a lot of theoretical and experimental efforts have been made to find states with broken time reversal symmetry (BTRS) in multi-band superconductors. ...
We show that under certain conditions, multiband superconductors with broken time reversal symmetry have a vortex viscosity-generating mechanism which is different from that in conventional superconductors. It appears due to the existence of a mixed superfluid phase-density mode inside the vortex core. ...
liquid with an odd number of components, a uniform gap in the ground state can appear when the time-reversal symmetry is spontaneously broken by ... C Wu,BA Bernevig,SC Zhang - 《Physical Review Letters》 被引量: 457发表: 2006年 Helical Liquid and the Edge of Quantum Spin Hall Systems ...