151 citations · 235 across the 5 of their papers we have counts for
12 papers
Streda-like formula in spin Hall effect
Min-Fong Yang, Ming-Che Chang
A generalized Streda formula is derived for the spin transport in spin-orbit coupled systems. As compared with the original Streda formula for charge transport, there is an extra c…
Persistent spin current in mesoscopic ferrimagnetic spin ring
Jing-Nuo Wu, Ming-Che Chang, Min-Fong Yang
Using a semiclassical approach, we study the persistent magnetization current of a mesoscopic ferrimagnetic ring in a nonuniform magnetic field. At zero temperature, there exists p…
Entanglement and Quantum Phase Transition Revisited
Min-Fong Yang
We show that, for an exactly solvable quantum spin model, a discontinuity in the first derivative of the ground state concurrence appears in the absence of quantum phase transition…
Energy Spectrum of Bloch Electrons Under Checkerboard Field Modulations
Ming-Che Chang, Min-Fong Yang
Two-dimensional Bloch electrons in a uniform magnetic field exhibit complex energy spectrum. When static electric and magnetic modulations with a checkerboard pattern are superimpo…
Effect of inhomogeneous magnetic flux on double-dot Aharonov-Bohm Interferometer
Zhi-Ming Bai, Min-Fong Yang, Yung-Chung Chen
The influence of the inhomogeneous distribution of the magnetic flux on quantum transport through coupled double quantum dots embedded in an Aharonov-Bohm interferometer are invest…
Chern-Simons Theory for Magnetization Plateaus of Frustrated - Heisenberg model
Ming-Che Chang, Min-Fong Yang
The magnetization curve of the two-dimensional spin-1/2 - Heisenberg model is investigated by using the Chern-Simons theory under a uniform mean-field approximation. We f…