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Magnetic scattering of spin polarized carriers in (In, Mn)Sb dilute magnetic semiconductor | M Csontos
; T Wojtowicz
; X Liu
; M Dobrowolska
; B Jankó
; J K Furdyna
; G Mihály
; | Date: |
25 Nov 2005 | Journal: | Phys Rev Lett, 95 (22), 227203 | Abstract: | Magnetoresistance measurements on the magnetic semiconductor (In, Mn)Sb suggest that magnetic scattering in this material is dominated by isolated Mn2+ ions located outside the ferromagnetically ordered regions when the system is below T(c). A model is proposed, based on the p-d exchange between spin-polarized charge carriers and localized Mn2+ ions, which accounts for the observed behavior both below and above the ferromagnetic phase transition. The suggested picture is further verified by high-pressure experiments, in which the degree of magnetic interaction can be varied in a controlled way. | Source: | PubMed, pmid16384260 | Services: | Forum | Review | Favorites |
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