[Formula presented]: A Frustrated Ferromagnet

G. Zaránd, Boldizsár Jankó

Research output: Contribution to journalArticle

1 Citation (Scopus)


Starting from a microscopic description of the exchange interaction in [Formula presented], we derive an effective Mn-Mn interaction. Because of the strong spin-orbit coupling in the valence band, this effective interaction is highly anisotropic and has a spatial structure somewhat similar to dipolar interactions. The corresponding ground state has a finite magnetization but is intrinsically spin disordered even at zero temperature, explaining many features of the experimental data. Our results are relevant for many magnetic semiconductors.

Original languageEnglish
JournalPhysical Review Letters
Issue number4
Publication statusPublished - Jan 1 2002


ASJC Scopus subject areas

  • Physics and Astronomy(all)

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