This article is cited in 9 papers

Magnetism

Ferromagnetic and antiferromagnetic ordering in the wurtzite-type diluted magnetic semiconductors

Yu. E. Kitaev^a, P. Tronc<sup>b

a</sup> Ioffe Physical Technical Institute, Russian Academy of Sciences, St. Petersburg, Russia
^b LPEM, Ecole Supérieure de Physique et de Chimie Industrielles, Paris, France

Abstract: We determined the magnetic symmetry groups (Shubnikov groups) of the wurtzite-type crystals doped with magnetic atoms periodically distributed at cation sites. The magnetic groups of doped crystals with ferro- or antiferromagnetic properties arise from the $P6_{3}mc$ $(C_{6v}^4)$, $P3m1$ $(C_{3v}^1)$, $C_s^3$ $(Cm)$ or $C_1^1$ $(P1)$ ordinary space groups. Those arising from the $P6_3mc$ or $P3m1$ group can present macroscopic ferromagnetic polarization only along the wurtzite symmetry axis whereas those arising from the $C_s^3$ $(Cm)$ group can present ferromagnetic polarization only in the symmetry plane and those arising from the $C_1^1$ $(P1)$ group can present polarization along any direction. Actual structures do not keep in general long-range order for magnetic atom distribution but the samples with macroscopic polarization should present local symmetries close to those listed above. Therefore, orientation of easy magnetization can provide information about the most frequent local symmetry.

Received: 20.09.2011

Language: English

 English version: Physics of the Solid State, 2012, 54:3, 520–530

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