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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.


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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Deposited On:10 Feb 2009 10:26
Last Modified:27 Nov 2013 19:18
Publisher:American Physical Society
Publisher DOI:10.1103/PhysRevLett.101.027202
PubMed ID:18764221
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