Ruderman-Kittel-Kasuya-Yosida-like ferromagnetism in MnxGe1-x

Yu Jun Zhao*, Tatsuya Shishidou, A. J. Freeman

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

134 Scopus citations


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 languageEnglish (US)
Article number047204
Pages (from-to)472041-472044
Number of pages4
JournalPhysical review letters
Issue number4
StatePublished - Jan 31 2003

ASJC Scopus subject areas

  • Physics and Astronomy(all)


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