Magnitude and crystalline anisotropy of hole magnetization in (Ga,Mn)As

被引：14

作者：

Sliwa, C.

Dietl, T.

机构：

[1] Polish Acad Sci, Inst Phys, PL-02668 Warsaw, Poland

[2] ERATO, Semicond Spintron Project, Japan Sci & Technol, PL-02668 Warsaw, Poland

[3] Univ Warsaw, Inst Theoret Phys, PL-00681 Warsaw, Poland

来源：

PHYSICAL REVIEW B | 2006年 / 74卷 / 24期

关键词：

D O I：

10.1103/PhysRevB.74.245215

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Theory of hole magnetization M-c in zinc-blende diluted ferromagnetic semiconductors is developed relaxing the spherical approximation of earlier approaches. The theory is employed to determine M-c for (Ga,Mn)As over a wide range of hole concentrations and a number of crystallographic orientations of Mn magnetization. It is found that anisotropy of M-c is practically negligible but the obtained magnitude of M-c is significantly greater than that determined in the spherical approximation. Its sign and value compares favorably with the results of available magnetization measurements and ferromagnetic resonance studies.

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页数：5

相关论文

共 14 条

[1] LANDAU LEVELS AND MAGNETO-ABSORPTION IN INSB [J].

BELL, RL ;

ROGERS, KT .

PHYSICAL REVIEW, 1966, 152 (02) :746-&

[2] Zener model description of ferromagnetism in zinc-blende magnetic semiconductors [J].

Dietl, T ;

Ohno, H ;

Matsukura, F ;

Cibert, J ;

Ferrand, D .

SCIENCE, 2000, 287 (5455) :1019-1022

[3] Hole-mediated ferromagnetism in tetrahedrally coordinated semiconductors [J].

Dietl, T ;

Ohno, H ;

Matsukura, F .

PHYSICAL REVIEW B, 2001, 63 (19)

[4]

DIETL T, 2003, FERROMAGNETIC 3 4 2, P714

[5] Low-temperature magnetization of (Ga,Mn)As semiconductors [J].

Jungwirth, T ;

Masek, J ;

Wang, KY ;

Edmonds, KW ;

Sawicki, M ;

Polini, M ;

Sinova, J ;

MacDonald, AH ;

Campion, RP ;

Zhao, LX ;

Farley, NRS ;

Johal, TK ;

van der Laan, G ;

Foxon, CT ;

Gallagher, BL .

PHYSICAL REVIEW B, 2006, 73 (16)

[6] Theory of ferromagnetic (III,Mn)V semiconductors [J].

Jungwirth, T. ;

Sinova, Jairo ;

Masek, J. ;

Kucera, J. ;

MacDonald, A. H. .

REVIEWS OF MODERN PHYSICS, 2006, 78 (03) :809-864

[7]

Landau L.D., 1958, QUANTUM MECH

[8] A PARALLEL ALGORITHM FOR REDUCING SYMMETRICAL BANDED MATRICES TO TRIDIAGONAL FORM [J].

LANG, B .

SIAM JOURNAL ON SCIENTIFIC COMPUTING, 1993, 14 (06) :1320-1338

[9] Ferromagnetic resonance study of the free-hole contribution to magnetization and magnetic anisotropy in modulation-doped Ga1-xMnxAs/Ga1-yAlyAs:Be -: art. no. 035307 [J].

Liu, X ;

Lim, WL ;

Dobrowolska, M ;

Furdyna, JK ;

Wojtowicz, T .

PHYSICAL REVIEW B, 2005, 71 (03)

[10] QUANTUM THEORY OF CYCLOTRON RESONANCE IN SEMICONDUCTORS - GENERAL THEORY [J].

LUTTINGER, JM .

PHYSICAL REVIEW, 1956, 102 (04) :1030-1041