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Transport and Magnetism in p-type cubic (Ga,Mn)N
KW Edmonds, SV Novikov, M Sawicki +8
The electrical and magnetic properties of p-type cubic (Ga,Mn)N thin films grown by plasma-assisted molecular beam epitaxy are reported. Hole concentrations in excess of 1018 cm-3…
Magnetism in (Ga,Mn)As Thin Films With TC Up To 173K
K. Y. Wang, R. P. Campion, K. W. Edmonds +4
We have investigated the magnetic properties of (Ga,Mn)As thin films with Mn concentration between 1 and 9%. Ferromagnetic transition temperatures TC of up to 173K are observed. Th…
Search For Hole Mediated Ferromagnetism In Cubic (Ga,Mn)N
M. Sawicki, T. Dietl, C. T. Foxon +6
Results of magnetisation measurements on p-type zincblende-(Ga,Mn)N are reported. In addition to a small high temperature ferromagnetic signal, we detect ferromagnetic correlation…
Spintronics and ferromagnetism in wide-band-gap semiconductors
Tomasz Dietl
Recent progress in understanding and controlling spintronic properties of (Ga,Mn)As and related compounds is contrasted to diverging experimental and theoretical results concerning…
Monte Carlo simulations of ferromagnetism in p-CdMnTe quantum wells
D. Kechrakos, N. Papanikolaou, K. N. Trohidou +1
Monte Carlo simulations, in which the Schrodinger equation is solved at each Monte Carlo sweep, are employed to assess the influence of magnetization fluctuations,short-range antif…
High-field magnetoresistance of Fe/GaAs/Fe tunnel junctions
M. Zenger, J. Moser, W. Wegscheider +2
We investigate transport through 6 to 10 nm thin epitaxial GaAs(001) barriers sandwiched between polycrystalline iron films. Apart from a pronounced tunneling magnetoresistance eff…