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Topological semimetals are exotic phases of quantum matter with gapless electronic excitation protected by symmetry. Benefitting from its unique relativistic band dispersion, topological host abundant states and effects, such as Fermi-arc surface chiral anomaly. In recent years, due to the potential application in computing, hybrid system topology superconductivity has aroused wide interest com...

We show that in electron-hole bilayers with excitonic order arising from conduction and valence bands formed by atomic orbitals have different parities, nonzero interlayer tunneling leads to a second Josephson effect. This means the electrical current is related phase of parameter as $J = J_c \sin2\theta$ instead \sin \theta$, system has two degenerate ground states at $\theta=0, \pi$ can be sw...

q First reported observation of the DC Josephson effect and its magnetic field dependence 1 Discovery of the AC Josephson effect 1 First verification of the frequency-voltage relation of the AC Josephson effect f Discovery that the established fine structure constant α, although theoretically supported, was wrong. The hyper-fine structure α was right. This reversal, based on an imaginative appl...

Experiments on the cuprate superconductors demonstrate that these materials may be viewed as a stack of Josephson junctions along the direction normal to the CuO2 planes (the c-axis). In this paper, we present a model which describes this intrinsic Josephson coupling in terms of incoherent quasiparticle hopping along the c-axis arising from wave-function overlap, impurity-assisted hopping, and ...