Abstract
Highly precise electronic and magnetic property calculations on MnxGe1-x as a function of the location of Mn sites in a large supercell were used to investigate the nature and origin of ferromagnetism in magnetic semiconductors. For large Mn-Mn distances the coupling was not necessarily ferromagnetic. The exchange interaction between Mn ions obeyed the Ruderman-Kittel-Kasuya-Yosida analytic formula and oscillated as a function of the distance between them. The results explained the experimental effective magnetic moments and the observed large range of Curie temperature in MnxGe1-x.
Original language | English |
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Article number | 047204 |
Pages (from-to) | 472041-472044 |
Number of pages | 4 |
Journal | Physical review letters |
Volume | 90 |
Issue number | 4 |
Publication status | Published - Jan 31 2003 |
ASJC Scopus subject areas
- Physics and Astronomy(all)