174 citations · 504 across the 10 of their papers we have counts for
10 papers
Spin Valve Effect in Self-exchange Biased Ferromagnetic Metal/Semiconductor Bilayers
M. Zhu, M. J. Wilson, B. L. Sheu +3
We report magnetization and magetoresistance measurements in hybrid ferromagnetic metal/semiconductor heterostructures comprised of MnAs/(Ga,Mn)As bilayers. Our measurements show t…
Onset of ferromagnetism in low-doped GaMnAs
B. L. Sheu, R. C. Myers, J. -M. Tang +4
We develop a quantitatively predictive theory for impurity-band ferromagnetism in the low-doping regime of GaMnAs and compare with experimental measurements of a series of samples…
Scaling analysis of the magnetoresistance in Ga_{1-x}Mn_xAs
C. P. Moca, B. L. Sheu, N. Samarth +3
We compare experimental resistivity data on Ga_{1-x}Mn_xAs films with theoretical calculations using a scaling theory for strongly disordered ferromagnets. All characteristic featu…
Flux through a hole from a shaken granular medium
K. Chen, M. B. Stone, R. Barry +7
We have measured the flux of grains from a hole in the bottom of a shaken container of grains. We find that the peak velocity of the vibration, vmax, controls the flux, i.e., the f…
Non-collinear Spin Valve Effect in Ferromagnetic Semiconductor Trilayers
G. Xiang, B. L. Sheu, M. Zhu +2
We report the observation of the spin valve effect in (Ga,Mn)As/p-GaAs/(Ga,Mn)As trilayer devices. Magnetoresistance measurements carried out in the current in plane geometry revea…
Antisite effect on ferromagnetism in (Ga,Mn)As
R. C. Myers, B. L. Sheu, A. W. Jackson +4
We study the Curie temperature and hole density of (Ga,Mn)As while systematically varying the As-antisite density. Hole compensation by As-antisites limits the Curie temperature an…