Memory and Superposition in a Spin Glass Typeset Using Revt E X
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چکیده
Non-equilibrium dynamics in a Ag(Mn) spin glass are investigated by measurements of the temperature dependence of the remanent magnetization. Using specific cooling protocols before recording the thermo-or isothermal remanent magnetizations on reheating , it is found that the measured curves effectively disclose non-equilibrium spin glass characteristics such as aging and memory phenomena as well as an extended validity of the superposition principle for the relaxation. The usefulness of this " simple " dc-method is discussed, as well as its applicability to other disordered magnetic systems.
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تاریخ انتشار 2008