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    National Tsing Hua University Institutional Repository > 歷任校長 > 陳信雄 (1997-1998) > 會議論文 >  Cooperative Jahn-Teller Effect in Dysprosium Antimonide


    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/80702


    Title: Cooperative Jahn-Teller Effect in Dysprosium Antimonide
    Authors: L.F. Uffer;P.M. Levy;H.H. Chen
    教師: 陳信雄
    Date: 1973
    Publisher: American Institute of Physics
    Relation: AIP Conference Proceedings, Volume 10, 1973, Pages 553-557
    Keywords: Jahn-Teller Effect
    Dysprosium
    Antimonide
    Abstract: We have analyzed the recent magneto-thermal and elastic data on dysprosium antimonide. Within the framework of the molecular field approximation we fit the data by using a model Hamiltonian which contains besides the crystal field term, bilinear and biquadratic pair interactions and a strain coupling of the lattice to the magnetic ions. The softening of the elastic constant (1/2)(C11-C12) above the transition at 9.5°K is due to a strain coupling. This coupling dominates over the remaining biquadratic pair interactions of comparable magnitudes but opposite signs. We determine the bilinear coupling by fitting the magneto-thermal data below the ordering temperature. We find that in DySb the biquadratic coupling is as important as the bilinear.
    Relation Link: http://www.aip.org/
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/80702
    Appears in Collections:[陳信雄 (1997-1998)] 會議論文
    [物理系] 會議論文

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