Skyrmion lattice in the doped semiconductor Fe1-xCoxSi

被引:606
作者
Muenzer, W. [1 ]
Neubauer, A. [1 ]
Adams, T. [1 ]
Muehlbauer, S. [1 ]
Franz, C. [1 ]
Jonietz, F. [1 ]
Georgii, R. [1 ,2 ]
Boeni, P. [1 ]
Pedersen, B. [2 ]
Schmidt, M. [3 ]
Rosch, A. [4 ]
Pfleiderer, C. [1 ]
机构
[1] Tech Univ Munich, Phys Dept E21, D-85748 Garching, Germany
[2] Tech Univ Munich, Forsch Neutronenquelle Heinz Maier Leibnitz FRM I, D-85748 Garching, Germany
[3] MPI Chem Phys Fester Stoffe, D-01187 Dresden, Germany
[4] Univ Cologne, Inst Theoret Phys, D-50937 Cologne, Germany
来源
PHYSICAL REVIEW B | 2010年 / 81卷 / 04期
关键词
SPIN-DENSITY WAVE; MAGNETIC-PROPERTIES; MNSI; FEXCO1-XSI; DIFFRACTION; CRYSTAL; ALLOYS; PHASE; ORDER;
D O I
10.1103/PhysRevB.81.041203
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report a comprehensive small angle neutron scattering study of the magnetic phase diagram of the doped semiconductor Fe1-xCoxSi for x=0.2. For magnetic field parallel to the neutron beam we observe a sixfold intensity pattern under field cooling. The regime of the skyrmion lattice is highly hysteretic and extents over a wide temperature range as may be expected due to the site disorder of the Fe and Co atoms. Our study identifies Fe1-xCoxSi as the second material in which a skyrmion lattice forms and establishes that skyrmion lattices exist also in doped semiconductors.
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页数:4
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共 29 条
  • [1] [Anonymous], 1992, Condens. Matter Phys, DOI DOI 10.1016/0921-4526(94)00588-M
  • [2] THEORY OF HELICAL MAGNETIC-STRUCTURES AND PHASE-TRANSITIONS IN MNSI AND FEGE
    BAK, P
    JENSEN, MH
    [J]. JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1980, 13 (31): : L881 - L885
  • [3] LONG PERIOD HELIMAGNETISM IN THE CUBIC-B20 FEXCO1-XSI AND COXMN1-XSI ALLOYS
    BEILLE, J
    VOIRON, J
    ROTH, M
    [J]. SOLID STATE COMMUNICATIONS, 1983, 47 (05) : 399 - 402
  • [4] HELIMAGNETIC STRUCTURE OF THE FEXCO1-XSI ALLOYS
    BEILLE, J
    VOIRON, J
    TOWFIQ, F
    ROTH, M
    ZHANG, ZY
    [J]. JOURNAL OF PHYSICS F-METAL PHYSICS, 1981, 11 (10): : 2153 - 2160
  • [5] Theory of the helical spin crystal: A candidate for the partially ordered state of MnSi
    Binz, B.
    Vishwanath, A.
    Aji, V.
    [J]. PHYSICAL REVIEW LETTERS, 2006, 96 (20)
  • [6] Skyrmions in nematic liquid crystals -: art. no. 016602
    Bogdanov, AN
    Rössler, UK
    Shestakov, AA
    [J]. PHYSICAL REVIEW E, 2003, 67 (01) : 8
  • [7] BOGDANOV AN, 1989, ZH EKSP TEOR FIZ+, V95, P178
  • [8] SKYRME CRYSTAL IN A 2-DIMENSIONAL ELECTRON-GAS
    BREY, L
    FERTIG, HA
    COTE, R
    MACDONALD, AH
    [J]. PHYSICAL REVIEW LETTERS, 1995, 75 (13) : 2562 - 2565
  • [9] Crystalline phases in chiral ferromagnets: Destabilization of helical order
    Fischer, Inga
    Shah, Nayana
    Rosch, Achim
    [J]. PHYSICAL REVIEW B, 2008, 77 (02):
  • [10] Principal interactions in the magnetic system Fe1-xCoxSi:: Magnetic structure and critical temperature by neutron diffraction and SQUID measurements
    Grigoriev, S. V.
    Maleyev, S. V.
    Dyadkin, V. A.
    Menzel, D.
    Schoenes, J.
    Eckerlebe, H.
    [J]. PHYSICAL REVIEW B, 2007, 76 (09):