Magnetic scattering of spin polarized carriers in (In,Mn)Sb dilute magnetic semiconductor -: art. no. 227203

被引：50

作者：

Csontos, M ^{[1
]}

Wojtowicz, T

Liu, X

Dobrowolska, M

Jankó, B

Furdyna, JK

Mihály, G

机构：

[1] Tech Univ Budapest, Dept Phys, H-1111 Budapest, Hungary

[2] Hungarian Acad Sci, Electron Transport Solids Res Grp, H-1111 Budapest, Hungary

[3] Univ Notre Dame, Dept Phys, Notre Dame, IN 46556 USA

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

来源：

PHYSICAL REVIEW LETTERS | 2005年 / 95卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.95.227203

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetoresistance measurements on the magnetic semiconductor (In,Mn)Sb suggest that magnetic scattering in this material is dominated by isolated Mn2+ ions located outside the ferromagnetically ordered regions when the system is below T-c. A model is proposed, based on the p-d exchange between spin-polarized charge carriers and localized Mn2+ ions, which accounts for the observed behavior both below and above the ferromagnetic phase transition. The suggested picture is further verified by high-pressure experiments, in which the degree of magnetic interaction can be varied in a controlled way.

引用

页数：4

共 18 条

[1] NEGATIVE MAGNETORESISTIVITY IN DILUTE ALLOYS [J].

BEALMONOD, MT ;

WEINER, RA .

PHYSICAL REVIEW, 1968, 170 (02) :552-+

[2] Diluted magnetic semiconductors in the low carrier density regime [J].

Bhatt, RN ;

Berciu, M ;

Kennett, MP ;

Wan, X .

JOURNAL OF SUPERCONDUCTIVITY, 2002, 15 (01) :71-83

[3] Electrical manipulation of magnetization reversal in a ferromagnetic semiconductor [J].

Chiba, D ;

Yamanouchi, M ;

Matsukura, F ;

Ohno, H .

SCIENCE, 2003, 301 (5635) :943-945

[4] Pressure-induced ferromagnetism in (In,Mn)Sb dilute magnetic semiconductor [J].

Csontos, M ;

Mihály, G ;

Jankó, B ;

Wojtowicz, T ;

Liu, X ;

Furdyna, JK .

NATURE MATERIALS, 2005, 4 (06) :447-449

[5] 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

[6] Ferromagnetic semiconductors [J].

Dietl, T .

SEMICONDUCTOR SCIENCE AND TECHNOLOGY, 2002, 17 (04) :377-392

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

Dietl, T ;

Ohno, H ;

Matsukura, F .

PHYSICAL REVIEW B, 2001, 63 (19)

[8] INELASTIC NEUTRON-SCATTERING STUDIES OF II-VI-DILUTED MAGNETIC SEMICONDUCTORS [J].

GIEBULTOWICZ, TM ;

RHYNE, JJ ;

FURDYNA, JK ;

KLOSOWSKI, P .

JOURNAL OF APPLIED PHYSICS, 1990, 67 (09) :5096-5101

[9] Metal-insulator transition and magnetotransport in III-V compound diluted magnetic semiconductors [J].

Iye, Y ;

Oiwa, A ;

Endo, A ;

Katsumoto, S ;

Matsukura, F ;

Shen, A ;

Ohno, H ;

Munekata, H .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 1999, 63 (1-2) :88-95

[10] Curie temperature trends in (III,Mn)V ferromagnetic semiconductors -: art. no. 012402 [J].

Jungwirth, T ;

König, J ;

Sinova, J ;

Kucera, J ;

MacDonald, AH .

PHYSICAL REVIEW B, 2002, 66 (01) :124021-124024

← 1 2 →