174 citations · 335 across the 5 of their papers we have counts for
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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…
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…
Magnetoresistance Anomalies in (Ga,Mn)As Epilayers with Perpendicular Magnetic Anisotropy
G. Xiang, A. W. Holleitner, B. L. Sheu +5
We report the observation of anomalies in the longitudinal magnetoresistance of tensile-strained (Ga,Mn)As epilayers with perpendicular magnetic anisotropy. Magnetoresistance measu…
Nanoengineered Curie Temperature in Laterally-Patterned Ferromagnetic Semiconductor Heterostructures
K. F. Eid, B. L. Sheu, O. Maksimov +3
We demonstrate the manipulation of the Curie temperature of buried layers of the ferromagnetic semiconductor (Ga,Mn)As using nanolithography to enhance the effect of annealing. Pat…