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Persistent URL http://purl.org/net/epubs/work/49885
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Record Id 49885
Title Electron localization into magnetic polaron in EuS
Abstract Recently the spin of the electron has become the focus of a new direction in electronics - semiconductor spintronics - which utilizes mechanisms of strong mutual influence of magnetic and electrical properties in magnetic semiconductors. These mechanisms are still a matter of considerable debate; however, all of them involve a concept of magnetic polaron - a microscopic cloud of magnetization made of several neighbouring magnetic ions and a carrier(s) - which determines most of the electrical, magnetic and optical properties of the material. Although a great number of experiments indicate the existence of magnetic polaron in magnetic semiconductors and related materials it has eluded direct observation until now. Using the positive muon as both a donor centre and a local magnetic probe, we have been able to generate and detect the magnetic polaron and determine its size in the magnetic semiconductor EuS.
Organisation ISIS , ISIS-MUONS , STFC
Keywords Physics , Magnetic semiconductor , Magnetic polaron , Exchange interaction
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Language English (EN)
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Journal Article Physica B 404, no. 5-7 (2009): 841-844. Is in proceedings of: 11th International Conference on Muon Spin Rotation, Relaxation and Resonance (MuSR2008), Tsukuba, Japan, 21-25 Jul 2008. doi:10.1016/j.physb.2008.11.142 2009