Peculiar Magnetic Properties at Low Temperature of MnAs Thin Films Grown on GaAs(001) Substrate

被引：0
|
作者：
Kwak, Yongsu [1 ]
Maeng, Jinyoung [1 ]
Song, Jonghyun [1 ]
机构：
[1] Chungnam Natl Univ, Dept Phys, Daejeon 34134, South Korea
来源：
JOURNAL OF MAGNETICS | 2021年 / 26卷 / 02期
关键词：
MnAs; thin film; ferromagnetism; M-H curve; weak-localization; ELECTRICAL SPIN INJECTION; WEAK-LOCALIZATION;
D O I：
10.4283/JMAG.2021.26.2.141
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We carried out investigation on the magnetic properties of MnAs thin film grown on GaAs(001) substrate by using molecular-beam epitaxy. The magnetic Curie temperature was similar to 340 K which was higher than that of the bulk. Magnetization (M) versus magnetic field (II) showed strong two-fold symmetric anisotropy. At low temperature of 2 K, the M-H curve and temperature dependence of magnetization exhibit peculiar behavior that has not been observed before. It should be noted that these unique results were only observed when a magnetic field was applied. We also observed a weak-localization-like magnetoresistance (MR) at 2 K. As an origin of the observed peculiar magnetic properties and MR, we suggest diamagnetic domains which are phase transited from ferromagnetism at low temperature.
引用
收藏
页码：141 / 145
页数：5
相关论文
共 50 条
  • [1] Magnetic properties of MnAs thin films grown on GaAs (001) by MOVPE
    Sterbinsky, G. E.
    May, S. J.
    Chiu, P. T.
    Wessels, B. W.
    [J]. PHYSICA B-CONDENSED MATTER, 2007, 388 (1-2) : 370 - 373
  • [2] Magnetic properties of epitaxial MnAs thin films on GaAs (001)
    Park, YS
    Shin, YJ
    [J]. JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2000, 37 (05) : 569 - 572
  • [3] Effect of postgrowth annealing on the morphology and magnetic properties of MnAs thin films grown on GaAs(001) substrates
    Nakane, R
    Sugahara, S
    Tanaka, M
    [J]. JOURNAL OF APPLIED PHYSICS, 2004, 95 (11) : 6558 - 6561
  • [4] Structural properties of MnAs thin films grown by molecular beam epitaxy on (001) GaAs
    Park, Y
    Shin, YJ
    [J]. JOURNAL OF THE KOREAN PHYSICAL SOCIETY, 2000, 37 (03) : 266 - 271
  • [5] Growth and magnetic properties of epitaxial MnAs thin films grown on InP(001)
    Yokoyama, M
    Ohya, S
    Tanaka, M
    [J]. APPLIED PHYSICS LETTERS, 2006, 88 (01)
  • [6] EPITAXIAL ORIENTATION AND MAGNETIC-PROPERTIES OF MNAS THIN-FILMS GROWN ON (001) GAAS - TEMPLATE EFFECTS
    TANAKA, M
    HARBISON, JP
    PARK, MC
    PARK, YS
    SHIN, T
    ROTHBERG, GM
    [J]. APPLIED PHYSICS LETTERS, 1994, 65 (15) : 1964 - 1966
  • [7] Magnetic properties of low-temperature grown Si:Ce thin films on (001) Si substrate
    Terao, T.
    Nishimura, Y.
    Shindo, D.
    Yoshimura, T.
    Ashida, A.
    Fujimura, N.
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 310 (02) : E726 - E728
  • [8] Electric field effects on magnetic and optical properties of MnAs/GaAs(001) thin films
    Shin, T
    Park, MC
    Park, Y
    Rothberg, GM
    Tanaka, M
    Harbison, JP
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1998, 34 (04) : 1042 - 1044
  • [9] Structural and magnetic properties of ferromagnetic MnAs films on GaAs (001)
    Däweritz, L
    Schippan, F
    Kästner, M
    Jenichen, B
    Kaganer, VM
    Ploog, KH
    Dennis, B
    Neumann, KU
    Ziebeck, KRA
    [J]. COMPOUND SEMICONDUCTORS 2001, 2002, (170): : 269 - 274
  • [10] Postgrowth annealing effects on heteroepitaxial MnAs thin films grown on GaAs(001) and Si(001)
    Song, J. H.
    Cui, Y.
    Lee, J. J.
    Kim, M. Y.
    Ketterson, J. B.
    [J]. JOURNAL OF APPLIED PHYSICS, 2006, 99 (08)
12345