Effect of exchange on interband magneto-absorption in zero gap Hg 1-kMnkTe mixed crystals

Bastard, G.; Rigaux, C.; Guldner, Y.; Mycielski, Jan; Mycielski, A.

doi:10.1051/jphys:0197800390108700

Cited by 156 publications

(30 citation statements)

References 11 publications

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“…This interaction strongly affects the band structure [9][10][11] and the impurity states [5,8]. In particular, the top of the valence band -the four-fold degenerate r 8 level -is split by the exchange interaction.…”

Section: Introductionmentioning

confidence: 99%

Acceptors in wide-gap semimagnetic semiconductors

Mycielski¹,

Rigaux

1983

J. Phys. France

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Section: Introductionmentioning

confidence: 99%

Acceptors in wide-gap semimagnetic semiconductors

Mycielski¹,

Rigaux

1983

J. Phys. France

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“…The important aspect of DMS is a strong spin-dependent coupling of the effective mass carriers to the localized d electrons, first discovered in (Cd,Mn)Te (Komarov et al, 1977;Gaj, Gałazka and Nawrocki, 1978) and (Hg,Mn)Te (Bastard et al, 1978;Jaczyński, Kossut and Gałazka, 1978). Neglecting nonscalar corrections that can appear for ions with L = 0, this interaction assumes the Kondo form,…”

Section: Exchange Interaction Between Band and Localized Spinsmentioning

confidence: 99%

Diluted Ferromagnetic Semiconductors—Theoretical Aspects

Dietl

2007

Handbook of Magnetism and Advanced Magnetic Materials

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This chapter reviews theoretical understanding of ferromagnetic response that has been detected in diluted magnetic semiconductors (DMS). Particular attention is paid to those ferromagnetic DMS in which no precipitation of other crystallographic phases has been observed. It is argued that these materials can be divided into three categories. The first consists of (Ga,Mn)As, heavily doped p‐(Zn,Mn)Te, and related compounds. In these solid solutions, the theory built on p–d Zener's model of hole‐mediated ferromagnetism and on either the Kohn‐Luttinger kp theory or the multiorbital tight‐binding approach describes qualitatively, and often quantitatively, thermodynamic, micromagnetic, optical, and transport properties. Moreover, the understanding of these materials has provided a basis for the development of novel methods enabling magnetization manipulation and switching. To the second group, belong compounds in which a competition between long‐range ferromagnetic and short‐range antiferromagnetic interactions and/or the proximity of the localization boundary lead to an electronic nanoscale phase separation that results in characteristics similar to colossal magnetoresistance oxides. Finally, in a number of compounds a chemical nanoscale phase separation into the regions with small and large concentrations of the magnetic constituent is present. Methods of controlling the spinodal decomposition and possible functionalities of these systems are outlined.

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“…(1) the modified Pidgeon-Brown model [5][6][7] is applied. It allows finding the energy levels in the magnetic field for each set of parameters: E g , k, γ 1 , γ 2 , γ 3 , the Luttinger constants, and the "bare" exchange parameters α and β.…”

Section: Renormalization Of Exchange Constant In Kp-approximationmentioning

confidence: 99%