Structural and magnetic phase transition in MnAs(0001)/GaAs(111) epitaxial films -: art. no. 132301

被引：20

作者：

Jenichen, B

Kaganer, VM

Kästner, M

Herrmann, C

Däweritz, L

Ploog, KH

Darowski, N

Zizak, I

机构：

[1] Paul Drude Inst Festkorperelekt, D-10117 Berlin, Germany

[2] Hahn Meitner Inst Berlin GmbH, D-14109 Berlin, Germany

来源：

PHYSICAL REVIEW B | 2003年 / 68卷 / 13期

关键词：

D O I：

10.1103/PhysRevB.68.132301

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The ferromagnetic phase transition in a MnAs film on GaAs(111), where the MnAs unit cell is epitaxially fixed in its hexagonal plane, proceeds under conditions qualitatively different from the transition in bulk MnAs crystals or in MnAs films on GaAs(001). We present experimental evidence for the coexistence between ferromagnetic and paramagnetic phases in a temperature interval of 10degreesC. Temperature dependencies of the phase fractions and the in-plane lattice parameters obtained by grazing incidence x-ray diffraction are compared with magnetization measurements.

引用

页数：4

共 37 条

[1]

ADACHI K, 1988, LANDOLTBORNSTEIN A, V27, P148

[2] EXCHANGE INTERACTIONS AND COUPLED SPIN-LATTICE PHASE-TRANSITIONS IN MANGANESE PNICTIDES [J].

BARNER, K .

PHYSICA STATUS SOLIDI B-BASIC SOLID STATE PHYSICS, 1978, 88 (01) :13-23

[3] MAGNETIC DISORDER AS A FIRST-ORDER PHASE TRANSFORMATION [J].

BEAN, CP ;

RODBELL, DS .

PHYSICAL REVIEW, 1962, 126 (01) :104-+

[4] Coordination and chemical effects on the structural, electronic, and magnetic properties in Mn pnictides [J].

Continenza, A ;

Picozzi, S ;

Geng, WT ;

Freeman, AJ .

PHYSICAL REVIEW B, 2001, 64 (08) :852041-852047

[5] Ferromagnetism of MnAs studied by heteroepitaxial films on GaAs(001) -: art. no. 087203 [J].

Das, AK ;

Pampuch, C ;

Ney, A ;

Hesjedal, T ;

Däweritz, L ;

Koch, R ;

Ploog, KH .

PHYSICAL REVIEW LETTERS, 2003, 91 (08)

[6]

Daweritz L., 1971, Kristall und Technik, V6, P101, DOI 10.1002/crat.19710060114

[7]

Däweritz L, 2002, INST PHYS CONF SER, P269

[8] MAGNETIC FIRST-ORDER PHASE TRANSITION IN SINGLE-CRYSTAL MNAS [J].

DEBLOIS, RW ;

RODBELL, DS .

PHYSICAL REVIEW, 1963, 130 (04) :1347-+

[9]

Erko A, 2002, CRYST RES TECHNOL, V37, P685, DOI 10.1002/1521-4079(200207)37:7<685::AID-CRAT685>3.0.CO

[10]

2-Z

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