37 citations · 48 across the 3 of their papers we have counts for
9 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…
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…
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…
Hysteresis effect in ν=1 quantum Hall system under periodic electrostatic modulation
Ming-Che Chang, Min-Fong Yang
The effect of a one-dimensional periodic electrostatic modulation on quantum Hall systems with filling factor ν=1 is studied. We propose that, either when the amplitude of the modu…
Comment on "Theory of diluted magnetic semiconductor ferromagnetism"
Min-Fong Yang, Shih-Jye Sun, Ming-Che Chang
In this comment, we emphasize that the self-consistent spin wave theory in a recent paper [J. K"onig, H.-H. Lin, and A. H. MacDonald, Phys. Rev. Lett. 84, 5628 (2000)] leads to inc…