Exchange interaction in magnetic HgMnTe quantum well structure | Zendy

Liu Jian | Zendy; Buhmann Hartmut | Zendy; Novik Elena G. | Zendy; Gui Yongsheng | Zendy; Hock Volkmar | Zendy; Becker Charles R. | Zendy; Molenkamp Laurens W. | Zendy

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Exchange interaction in magnetic HgMnTe quantum well structure

Author(s) -

Liu Jian,

Buhmann Hartmut,

Novik Elena G.,

Gui Yongsheng,

Hock Volkmar,

Becker Charles R.,

Molenkamp Laurens W.

Publication year - 2006

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.200564610

Subject(s) - antiferromagnetism , condensed matter physics , exchange interaction , chemistry , quantum , quantum well , spin (aerodynamics) , physics , ferromagnetism , quantum mechanics , thermodynamics , laser

Low temperature magnetotransport measurements have been used to study the exchange interactions in Hg 1– x Mn x Te magnetic quantum wells (QWs). An analysis of Shubnikov–de Haas oscillations in conjunction with 8 × 8 k · p bandstructure calculations allow the exchange constants N 0 α and N 0 β , the antiferromagnetic temperature T 0 , and the effective spin S 0 to be determined. The latter displays a distinct temperature dependence and appears to be enhanced compared with bulk materials of equivalent Mn concentrations. (© 2006 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)

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