Full Aging in Spin Glass State of Y0.90 Na0.10 MnO3
CHEN Wei-Ran, ZHANG Fu-Chang, MIAO Jun, XU Bo, DONG Xiao-Li, CAO Li-Xin, QIU Xiang-Gang, ZHAO Bai-Ru
National Laboratory for Superconductivity, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080
Full Aging in Spin Glass State of Y0.90 Na0.10 MnO3
CHEN Wei-Ran;ZHANG Fu-Chang;MIAO Jun;XU Bo;DONG Xiao-Li;CAO Li-Xin;QIU Xiang-Gang;ZHAO Bai-Ru
National Laboratory for Superconductivity, Institute of Physics, Chinese Academy of Sciences, PO Box 603, Beijing 100080
关键词 :
75.50.Lk ,
75.40.Cx ,
75.30.Kz
Abstract : We study the decays of the thermoremanent magnetization in Y0.90 Na0.10 MnO3 for different waiting times at the measuring temperature 33K, well below the spin glass (SG) transition temperature 42K. The results demonstrate that almost perfect full aging can appear even in the case of the cooling time as long as 700s from 60K to 33K. By subtracting the stationary component A(τ0 t)a (A is a dimensionless constant, t represents the time, τ0 is the microscopic spin flipping time, and α is a parameter always in the rang of 0.1-0.01), the value of α is found to be much smaller than that reported in other SG systems, which is well consistent with the behaviour of the ac susceptibility. All of them are discussed based on the intrinsic geometric magnetic frustration for the present system.
Key words :
75.50.Lk
75.40.Cx
75.30.Kz
出版日期: 2004-10-01
:
75.50.Lk
(Spin glasses and other random magnets)
75.40.Cx
(Static properties (order parameter, static susceptibility, heat capacities, critical exponents, etc.))
75.30.Kz
(Magnetic phase boundaries (including classical and quantum magnetic transitions, metamagnetism, etc.))
引用本文:
CHEN Wei-Ran;ZHANG Fu-Chang;MIAO Jun;XU Bo;DONG Xiao-Li;CAO Li-Xin;QIU Xiang-Gang;ZHAO Bai-Ru. Full Aging in Spin Glass State of Y0.90 Na0.10 MnO3 [J]. 中国物理快报, 2004, 21(10): 2045-2048.
CHEN Wei-Ran, ZHANG Fu-Chang, MIAO Jun, XU Bo, DONG Xiao-Li, CAO Li-Xin, QIU Xiang-Gang, ZHAO Bai-Ru. Full Aging in Spin Glass State of Y0.90 Na0.10 MnO3 . Chin. Phys. Lett., 2004, 21(10): 2045-2048.
链接本文:
https://cpl.iphy.ac.cn/CN/
或
https://cpl.iphy.ac.cn/CN/Y2004/V21/I10/2045
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