Magnetic properties and atomic ordering of BCC Heusler alloy Fe2MnGa ribbons

被引：17
作者：
Xin, Yuepeng [1 ]
Ma, Yuexing [1 ]
Luo, Hongzhi [1 ]
Meng, Fanbin [1 ]
Liu, Heyan [1 ]
机构：
[1] Hebei Univ Technol, Sch Mat Sci & Engn, Tianjin 300130, Peoples R China
来源：
PHYSICA B-CONDENSED MATTER | 2016年 / 489卷
基金：
中国国家自然科学基金;
关键词：
Heusler alloys; Electronic structure; Magnetic properties; Anti-site disorder; ELECTRONIC-STRUCTURE; CRYSTAL-STRUCTURE; MN; FE; TI;
D O I：
10.1016/j.physb.2016.02.030
中图分类号：
O469 [凝聚态物理学];
学科分类号：
070205 ;
摘要：
The electronic structure, atomic disorder and magnetic properties of the Heusler alloy Fe2MnGa have been investigated experimentally and theoretically. BCC Fe2MnGa ribbon samples were prepared. Experimentally, a saturation magnetic moment (3.68 LIB at 5 K) much larger than the theoretical value (2.04 mu(B)) has been reported. First-principles calculations indicate that the difference is related to the Fe-Mn disorder between A, B sites, as can also be deduced from the XRD pattern. L2(1) type Fe2MnGa is a ferrimagnet with antiparallel Fe and Mn spin moments. However, when Fe-Mn disorder occurs, part of Mn moments will be parallel to Fe moments, and the Fe moments also clearly increase simultaneously. All this results in a total moment of 3.74 mu(B), close to the experimental value. (C) 2016 Elsevier B.V. All rights reserved.
引用
收藏
页码：51 / 55
页数：5
相关论文
共 30 条
  • [1] HYPERFINE STUDIES OF SITE OCCUPATION IN TERNARY-SYSTEMS
    BURCH, TJ
    LITRENTA, T
    BUDNICK, JI
    [J]. PHYSICAL REVIEW LETTERS, 1974, 33 (07) : 421 - 424
  • [2] Chadov S, 2010, NAT MATER, V9, P541, DOI [10.1038/NMAT2770, 10.1038/nmat2770]
  • [3] NEW CLASS OF MATERIALS - HALF-METALLIC FERROMAGNETS
    DEGROOT, RA
    MUELLER, FM
    VANENGEN, PG
    BUSCHOW, KHJ
    [J]. PHYSICAL REVIEW LETTERS, 1983, 50 (25) : 2024 - 2027
  • [4] Magnetic properties of new compounds RuMn2Sn and RuMn2Si
    Endo, K.
    Kanomata, T.
    Nishihara, H.
    Ziebeck, K. R. A.
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2012, 510 (01) : 1 - 5
  • [5] Structural and magnetic properties of the Heusler compound Fe2MnGa
    Gasi, Teuta
    Nayak, Ajaya K.
    Nicklas, Michael
    Felser, Claudia
    [J]. JOURNAL OF APPLIED PHYSICS, 2013, 113 (17)
  • [6] Simple rules for the understanding of Heusler compounds
    Graf, Tanja
    Felser, Claudia
    Parkin, Stuart S. P.
    [J]. PROGRESS IN SOLID STATE CHEMISTRY, 2011, 39 (01) : 1 - 50
  • [7] CRYSTAL-STRUCTURE, PHASE-STABILITY, AND ELECTRONIC-STRUCTURE OF TI-AL INTERMETALLICS - TIAL3
    HONG, T
    WATSONYANG, TJ
    FREEMAN, AJ
    OGUCHI, T
    XU, JH
    [J]. PHYSICAL REVIEW B, 1990, 41 (18): : 12462 - 12467
  • [8] Magnetic-field-induced shape recovery by reverse phase transformation
    Kainuma, R
    Imano, Y
    Ito, W
    Sutou, Y
    Morito, H
    Okamoto, S
    Kitakami, O
    Oikawa, K
    Fujita, A
    Kanomata, T
    Ishida, K
    [J]. NATURE, 2006, 439 (7079) : 957 - 960
  • [9] Calculated electronic and magnetic properties of the half-metallic, transition metal based Heusler compounds
    Kandpal, Hem C.
    Fecher, Gerhard H.
    Felser, Claudia
    [J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2007, 40 (06) : 1507 - 1523
  • [10] Electronic structure, magnetic and optical properties of Fe2MnGa Heusler alloy
    Kudryavtsev, Y. V.
    Uvarov, N. V.
    Iermolenko, V. N.
    Glavatskyy, I. N.
    Dubowik, J.
    [J]. ACTA MATERIALIA, 2012, 60 (12) : 4780 - 4786
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