329 citations · 1.4k across the 13 of their papers we have counts for
13 papers
Interlayer and interfacial exchange coupling in ferromagnetic metal/semiconductor heterostructures
M. J. Wilson, M. Zhu, R. C. Myers +3
We describe a systematic study of the exchange coupling between a magnetically hard metallic ferromagnet (MnAs) and a magnetically soft ferromagnetic semiconductor (GaMnAs) in bila…
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…
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…
Impurity Band Conduction in a High Temperature Ferromagnetic Semiconductor
K. S. Burch, D. B. Shrekenhamer, E. J. Singley +7
The band structure of a prototypical dilute ferromagnetic semiconductor, GaMnAs, is studied across the phase diagram via optical spectroscopy. We prove that the Fermi…