Ferromagnetism in Fe-doped Ba6Ge25 chiral clathrate

被引：22
|
作者：
Li, Y [1 ]
Ross, JH [1 ]
机构：
[1] Texas A&M Univ, Dept Phys, College Stn, TX 77843 USA
来源：
APPLIED PHYSICS LETTERS | 2003年 / 83卷 / 14期
关键词：
D O I：
10.1063/1.1616658
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
We have synthesized a Ba6Ge25 clathrate, substituting 3 Ge per formula unit by Fe. This chiral clathrate has Ge sites forming a framework of closed cages and helical tunnel networks. Fe atoms randomly occupy these sites, and exhibit high-spin magnetic moments. A ferromagnetic transition is observed with T-c=170 K, the highest observed T-c for a magnetic clathrate. However, the magnetic phase is significantly disordered, and exhibits a transformation to a reentrant spin glass phase. This system has a number of features in common with other dilute magnetic semiconductors. (C) 2003 American Institute of Physics.
引用
收藏
页码：2868 / 2870
页数：3
相关论文
共 50 条
  • [31] Structure and RT ferromagnetism of Fe-doped AlN films
    Gao, X. D.
    Jiang, E. Y.
    Liu, H. H.
    Mi, W. B.
    Li, Z. Q.
    Wu, P.
    Bai, H. L.
    APPLIED SURFACE SCIENCE, 2007, 253 (12) : 5431 - 5435
  • [32] Ferromagnetism in Fe-doped BaTiO3 Ceramics
    Deka, Bipul
    Ravi, S.
    JOURNAL OF SUPERCONDUCTIVITY AND NOVEL MAGNETISM, 2018, 31 (05) : 1427 - 1433
  • [33] Ferromagnetism in heavily Fe-doped GaAs: a DFT study
    Zarpellon, J.
    Mosca, D. H.
    Varalda, J.
    PHYSICA SCRIPTA, 2024, 99 (09)
  • [34] Ferromagnetism in Fe-doped BaTiO3 Ceramics
    Bipul Deka
    S. Ravi
    Journal of Superconductivity and Novel Magnetism, 2018, 31 : 1427 - 1433
  • [35] Ferromagnetism and exchange bias in Fe-doped ZnO nanocrystals
    Liu, Huilian
    Yang, Jinghai
    Zhang, Yongjun
    Wang, Yaxin
    Wei, Macibin
    MATERIALS CHEMISTRY AND PHYSICS, 2008, 112 (03) : 1021 - 1023
  • [36] Influence of cage distortions on the electronic structure and optical properties of Ba6Ge25 -: art. no. 045122
    Zerec, I
    Carrillo-Cabrera, W
    Voevodin, V
    Sichelschmidt, J
    Steglich, F
    Grin, Y
    Yaresko, A
    Kimura, S
    PHYSICAL REVIEW B, 2005, 72 (04):
  • [37] Extraordinary Hall effect and ferromagnetism in Fe-doped reduced rutile
    Wang, ZJ
    Wang, WD
    Tang, JK
    Tung, LD
    Spinu, L
    Zhou, WL
    APPLIED PHYSICS LETTERS, 2003, 83 (03) : 518 - 520
  • [38] Ferromagnetism in Fe-doped CdSe nanorods prepared by solvothermal route
    Jaspal Singh
    N. K. Verma
    Journal of Materials Science: Materials in Electronics, 2013, 24 : 4464 - 4470
  • [39] Ferromagnetism in Fe-doped SnO2 thin films
    Coey, JMD
    Douvalis, AP
    Fitzgerald, CB
    Venkatesan, M
    APPLIED PHYSICS LETTERS, 2004, 84 (08) : 1332 - 1334
  • [40] Ferromagnetism in Fe-doped CdSe nanorods prepared by solvothermal route
    Singh, Jaspal
    Verma, N. K.
    JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS, 2013, 24 (11) : 4464 - 4470
12345