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94 papers
Three-component superconductivity: the effect of second-order Josephson couplings
Shen-Yi Peng, Ling-Feng Zhang, Xiao Hu
Recently, a three-component Ginzburg-Landau (GL) model compatible with the 3Q pair-density-wave state has been proposed to explain the fractional quantum magnetic resistance oscill…
Novel coupling between charge order and time-reversal-symmetry-breaking superconductivity
Quanxin Hu, Lingfeng Zhang, Yu Zheng +9
The interplay between charge-density waves (CDWs), which break translational symmetry, and spatially homogeneous superconductivity, which breaks global U(1) gauge symmetry, can giv…
Massive Klein Tunneling in Topological Photonic Crystals
Keiji Nakatsugawa, Xiao Hu
Klein's paradox refers to the transmission of a relativistic particle through a high potential barrier. Although it has a simple resolution in terms of particle-to-antiparticle tun…
Coupling of magnetism and Dirac fermions in YbMnSb2
Xiao Hu, Aashish Sapkota, Zhixiang Hu +5
We report inelastic neutron scattering measurements of magnetic excitations in YbMnSb2, a low-carrier-density Dirac semimetal in which the antiferromagnetic Mn layers are interleav…
Spin canting and lattice symmetry in LaCuO
Xiao Hu, A. Sapkota, V. O. Galea +3
While the dominant magnetic interaction in LaCuO is superexchange between nearest-neighbor Cu moments, the pinning of the spin direction depends on weak anisotropic effects…
Higgs-Leggett mechanism for the elusive 6e superconductivity observed in Kagome vanadium-based superconductors
Ling-Feng Zhang, Zhi Wang, Xiao Hu
A recent Little-Parks experiment on Kagome-structured superconductor CsV_3Sb_5 demonstrated remarkable resistance oscillations with period \phi0/3=hc/6e. Here, we perform analysis…