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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…
Topological Anderson Insulator
Jian Li, Rui-Lin Chu, J. K. Jain +1
Disorder plays an important role in two dimensions, and is responsible for striking phenomena such as metal insulator transition and the integral and fractional quantum Hall effect…
Double quantum dot as detector of spin bias
Qing-feng Sun, Yanxia Xing, Shun-Qing Shen
It was proposed that a double quantum dot can be used to be a detector of spin bias. Electron transport through a double quantum dot is investigated theoretically when a pure spin…
Disorder Effects in the Quantum Hall Effect of Graphene p-n Junctions
Jian Li, Shun-Qing Shen
The quantum Hall effect in graphene p-n junctions is studied numerically with emphasis on the effect of disorder at the interface of two adjacent regions. Conductance plateaus are…
Conductance plateau in quantum spin transport through an interacting quantum dot
Yun-Juan Bao, Ning-Hua Tong, Qing-Feng Sun +1
Quantum spin transport is studied in an interacting quantum dot. It is found that a conductance "plateau" emerges in the non-linear charge conductance by a spin bias in the Kondo r…
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,…