224 citations · 1.1k across the 21 of their papers we have counts for
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cond-mat.mtrl-sci2005★ 6 cited
Large spin splitting of GaN electronic states induced by Gd doping
V. F. Sapega, M. Ramsteiner, S. Dhar +2
We present a detailed study of the magnetic-field and temperature-dependent polarization of the near-band-gap photoluminescence in Gd-doped GaN layers. Our study reveals an extraor…
cond-mat.mtrl-sci2005★ 145 cited
GaN:Gd: A superdilute ferromagnetic semiconductor with a Curie temperature above 300 K
S. Dhar, O. Brandt, M. Ramsteiner +2
We investigate the magnetic and magneto-optic properties of epitaxial GaN:Gd layers as a function of the external magnetic field and temperature. An unprecedented magnetic moment i…
cond-mat.mtrl-sci2004★ 224 cited
X-ray diffraction peak profiles from threading dislocations in GaN epitaxial films
V. M. Kaganer, O. Brandt, A. Trampert +1
We analyze the lineshape of x-ray diffraction profiles of GaN epitaxial layers with large densities of randomly distributed threading dislocations. The peaks are Gaussian only in t…