Storchak, V G; Eshchenko, D G; Morenzoni, E; Prokscha, T; Suter, A; Liu, X; Furdina, J K (2008). Spatially resolved inhomogeneous ferromagnetism in (Ga,Mn)As diluted magnetic semiconductors: A microscopic study by muon spin relaxation. Physical Review Letters, 101(2):027202.
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Thin epitaxial films of the diluted magnetic semiconductor (DMS) GaMnAs have been studied by low energy muon spin rotation and relaxation (LE-µSR) as well as by transport and magnetization measurement techniques. LE-µSR allows measurements of the distribution of magnetic field on the nanometer scale inaccessible to traditional macroscopic techniques. The spatial inhomogeneity of the magnetic field is resolved: although homogeneous above Tc, below Tc the DMS consists of ferromagnetic and paramagnetic regions of comparable volumes. In the ferromagnetic regions the local field inhomogeneity amounts to 0.03 T.
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Physics Institute|
|Deposited On:||10 Feb 2009 10:26|
|Last Modified:||27 Nov 2013 19:18|
|Publisher:||American Physical Society|
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