Micromagnetic properties of epitaxial MnAs films on GaAs surfaces

被引：1
|
作者：
Hesjedal, Thorsten [1 ]
Engel-Herbert, Roman [1 ]
Schaadt, Daniel M. [2 ]
Ploog, Klaus H. [2 ]
机构：
[1] Univ Waterloo, Magnet Mat Lab, Waterloo, ON N2L 3G1, Canada
[2] Paul Drude Inst Festkorperelekt, D-10117 Berlin, Germany
来源：
PHYSICA STATUS SOLIDI C - CURRENT TOPICS IN SOLID STATE PHYSICS, VOL 4, NO 5 | 2007年 / 4卷 / 05期
关键词：
D O I：
10.1002/pssc.200674270
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
We present a systematic study of the micromagnetic properties of MnAs deposited by molecular-beam epitaxy on GaAs(001) and GaAs(111)B surfaces. In epitaxial MnAs films, the strain state in MnAs-on-GaAs(001) (anisotropic) and MnAs-on-GaAs(111)B (isotropic) has a strong influence on the magnetostructural phase transition and thus the micromagnetic properties. The ferromagnetic alpha and the beta phase coexist over a wide temperature range exhibiting self-organized, magnetically coupled nanostructures. Independent of the substrate orientation, magnetic flux-closure domain patterns are formed in the basal plane of MnAs. The spatial distribution of the phases in equilibrium (stripes and quasi-hexagonal islands, respectively) stabilizes various magnetic states, which were found experimentally and confirmed by micromagnetic simulations. (c) 2007 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码：1763 / +
页数：2
相关论文
共 50 条
  • [31] Thickness-dependent magnetic domain change in epitaxial MnAs films on GaAs(001)
    Ryu, Kwang-Su
    Kim, JinBae
    Lee, YoungPak
    Akinaga, Hiro
    Manago, Takashi
    Viswan, Ravindranath
    Shin, Sung-Chul
    APPLIED PHYSICS LETTERS, 2006, 89 (23)
  • [32] Microstructure of epitaxial MnAs films on GaAs(001):: An in situ x-ray study
    Jenichen, B
    Satapathy, D
    Braun, W
    Däweritz, L
    Ploog, KH
    JOURNAL OF APPLIED PHYSICS, 2004, 96 (11) : 6103 - 6108
  • [33] Epitaxial orientation of MnAs layers grown on GaAs surfaces by means of solid-state crystallization
    Takagaki, Y.
    Herrmann, C.
    Jenichen, B.
    Brandt, O.
    PHYSICAL REVIEW B, 2008, 78 (06)
  • [34] Growth and magnetic properties of epitaxial MnAs/NiAs/MnAs hetero structures grown on exact GaAs(111)B substrates
    Nakane, R
    Kondo, J
    Yuan, MW
    Sugahara, S
    Tanaka, M
    JOURNAL OF CRYSTAL GROWTH, 2005, 278 (1-4) : 649 - 654
  • [35] Growth and magnetoresistance of epitaxial metallic MnAs/NiAs/MnAs trilayers on GaAs (001) substrates
    Nakane, R
    Sugahara, S
    Tanaka, M
    PHYSICA E-LOW-DIMENSIONAL SYSTEMS & NANOSTRUCTURES, 2004, 21 (2-4): : 991 - 995
  • [36] Patterning of epitaxial MnAs on GaAs by direct optical writing
    Ramsteiner, M
    Zhu, HJ
    Däweritz, L
    APPLIED PHYSICS LETTERS, 2001, 79 (15) : 2411 - 2413
  • [37] Magneto-optical spectra of epitaxial ferromagnetic MnAs films grown on Si and GaAs substrates
    Nazmul, AM
    Shimizu, H
    Tanaka, M
    JOURNAL OF APPLIED PHYSICS, 2000, 87 (09) : 6791 - 6793
  • [38] HETEROEPITAXY OF FERROMAGNETIC MNAS THIN-FILMS ON (001)GAAS - TEMPLATE EFFECTS AND EPITAXIAL ORIENTATIONS
    TANAKA, M
    HARBISON, JP
    ROTHBERG, GM
    JOURNAL OF CRYSTAL GROWTH, 1995, 150 (1-4) : 1132 - 1138
  • [39] Magnetic properties of MnAs thin films grown on GaAs (001) by MOVPE
    Sterbinsky, G. E.
    May, S. J.
    Chiu, P. T.
    Wessels, B. W.
    PHYSICA B-CONDENSED MATTER, 2007, 388 (1-2) : 370 - 373
  • [40] Magnetotransport properties in (1100)- and (0001)-oriented MnAs films on GaAs substrates
    Takagaki, Y.
    Friedland, K.-J.
    JOURNAL OF APPLIED PHYSICS, 2007, 101 (11)
12345