Mn distribution and spin polarization in Ga(1-x)Mn x As.
نویسنده
چکیده
Using the density functional full-potential linearized augmented plane wave approach, the x-ray absorption and magnetic circular dichroism (XMCD) spectra of Ga(1-x)Mn x As are calculated. Significantly, XMCD of Mn is highly sensitive to the change in environment, and thus can be utilized to characterize impurity distribution. The nature of Mn-induced spin polarization on Ga and As sites, vital for the carrier mediated magnetic ordering, is discussed in light of computational and experimental results.
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ورودعنوان ژورنال:
- Physical review letters
دوره 94 20 شماره
صفحات -
تاریخ انتشار 2005