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Global Phase Diagram of the High Tc Cuprates
Han-Dong Chen, Sylvain Capponi, Fabien Alet +1
The high Tc cuprates have a complex phase diagram with many competing phases. We propose a bosonic effective quantum Hamiltonian based on the projected SO(5) model with extended in…
Dynamic generation of spin orbit coupling
Congjun Wu, Shou-Cheng Zhang
Spin-orbit coupling plays an important role in determining the properties of solids, and is crucial for spintronics device applications. Conventional spin-orbit coupling arises mic…
Dissipationless Spin Current in Anisotropic p-Doped Semiconductors
Bogdan A. Bernevig, JiangPing Hu, Eran Mukamel +1
Recently, dissipationless spin current has been predicted for the p-doped semiconductors with spin-orbit coupling. Here we investigate the effect of spherical symmetry breaking on…
Quantitative Test of SO(5) Symmetry in the Vortex State of
Han-Dong Chen, Congjun Wu, Shou-Cheng Zhang
By numerically solving models with competing superconducting and antiferromagnetic orders, we study the magnetic field dependence of the antiferromagnetic moment in both the weak a…
Non-abelian Berry's phase and Chern numbers in higher spin pairing condensates
Chyh-Hong Chern, Han-Dong Chen, Congjun Wu +2
We show that the non-Abelian Berry phase emerges naturally in the s-wave and spin quintet pairing channel of spin-3/2 fermions. The topological structure of this pairing condensate…
SU(2) Non-Abelian Holonomy and Dissipationless Spin Current in Semiconductors
Shuichi Murakami, Naoto Nagaosa, Shou-Cheng Zhang
Following our previous work [S. Murakami, N. Nagaosa, S. C. Zhang, Science 301, 1348 (2003)] on the dissipationless quantum spin current, we present an exact quantum mechanical cal…