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5 papers · 1 filter
Spin-bias driven magnetization reversal and nondestructive detection in a single molecular magnet
Hai-Zhou Lu, Bin Zhou, Shun-Qing Shen
The magnetization reversal in a single molecular magnet (SMM) weakly coupled to an electrode with spin-dependent splitting of chemical potentials (spin bias) is theoretically inves…
Finite size effects of helical edge states in HgTe/CdTe quantum wells
Bin Zhou, Hai-Zhou Lu, Rui-Lin Chu +2
The solutions for the helical edge states for an effective continuum model for the quantum spin Hall effect in HgTe/CdTe quantum wells are presented. For a sample of a large size,…
Topological quantum phase transition and the Berry phase near the Fermi surface in hole-doped quantum wells
Bin Zhou, Chao-Xing Liu, Shun-Qing Shen
We propose a topological quantum phase transition for quantum states with different Berry phases in hole-doped III-V semiconductor quantum wells with bulk and structure inversion a…
Deduction of Pure Spin Current from Spin Linear and Circular Photogalvanic Effect in Semiconductor Quantum Wells
Bin Zhou, Shun-Qing Shen
We study the spin photogalvanic effect in two-dimensional electron system with structure inversion asymmetry by means of the solution of semiconductor optical Bloch equations. It i…
Quantum-classical transition of the escape rate of uniaxial antiferromagnetic particles in an arbitrarily directed field
Bin Zhou, Ruibao Tao, Shun-Qing Shen
Quantum-classical escape rate transition has been studied for uniaxial antiferromagnetic particles with an arbitrarily directed magnetic field. In the case that the transverse and…