Time decay of the remanent magnetization in spin-glasses

R. V. Chamberlin; George Mozurkewich; R. Orbach

doi:10.1103/PhysRevLett.52.867

Time decay of the remanent magnetization in spin-glasses

R. V. Chamberlin, George Mozurkewich, R. Orbach

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Abstract

The time decay of the thermoremanent magnetization (TRM) has been measured in 1.0% Cu: Mn and 2.6% Ag: Mn spin-glasses. It is shown that TRM is neither an algebraic nor a logarithmic function of time, but it is found that TRM can be characterized by a "stretched" exponential: TRM=0exp[-C(t)1-n(1-n)]. Similar time dependences appear in the disorder-diffusion theory of Grassberger and Procaccia and the cooperative-relaxation theory of Ngai, but neither theory in its present form is directly applicable to spin-glasses.

Original language	English (US)
Pages (from-to)	867-870
Number of pages	4
Journal	Physical Review Letters
Volume	52
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.52.867
State	Published - Jan 1 1984
Externally published	Yes

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General Physics and Astronomy

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10.1103/PhysRevLett.52.867

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AU - Mozurkewich, George

AU - Orbach, R.

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N2 - The time decay of the thermoremanent magnetization (TRM) has been measured in 1.0% Cu: Mn and 2.6% Ag: Mn spin-glasses. It is shown that TRM is neither an algebraic nor a logarithmic function of time, but it is found that TRM can be characterized by a "stretched" exponential: TRM=0exp[-C(t)1-n(1-n)]. Similar time dependences appear in the disorder-diffusion theory of Grassberger and Procaccia and the cooperative-relaxation theory of Ngai, but neither theory in its present form is directly applicable to spin-glasses.

AB - The time decay of the thermoremanent magnetization (TRM) has been measured in 1.0% Cu: Mn and 2.6% Ag: Mn spin-glasses. It is shown that TRM is neither an algebraic nor a logarithmic function of time, but it is found that TRM can be characterized by a "stretched" exponential: TRM=0exp[-C(t)1-n(1-n)]. Similar time dependences appear in the disorder-diffusion theory of Grassberger and Procaccia and the cooperative-relaxation theory of Ngai, but neither theory in its present form is directly applicable to spin-glasses.

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Time decay of the remanent magnetization in spin-glasses

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