Percolation model for relaxation in random systems

Ralph Chamberlin; D. N. Haines

doi:10.1103/PhysRevLett.65.2197

Percolation model for relaxation in random systems

Ralph Chamberlin, D. N. Haines

Physics

Research output: Contribution to journal › Article › peer-review

68 Scopus citations

Abstract

We have measured the magnetic relaxation of several Au:Fe alloys from 10-5 to 104 sec after removing an applied field. The quality and range of the data are sufficient to demonstrate significant deviations from all functions previously used to characterize the dynamics of similar systems. A simple model, activated relaxation of dispersive excitations on a percolation distribution of finite-sized domains, gives excellent agreement with the measurements and may provide a common link between fundamental excitations and observed behavior in random systems.

Original language	English (US)
Pages (from-to)	2197-2200
Number of pages	4
Journal	Physical Review Letters
Volume	65
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevLett.65.2197
State	Published - 1990

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General Physics and Astronomy

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title = "Percolation model for relaxation in random systems",

abstract = "We have measured the magnetic relaxation of several Au:Fe alloys from 10-5 to 104 sec after removing an applied field. The quality and range of the data are sufficient to demonstrate significant deviations from all functions previously used to characterize the dynamics of similar systems. A simple model, activated relaxation of dispersive excitations on a percolation distribution of finite-sized domains, gives excellent agreement with the measurements and may provide a common link between fundamental excitations and observed behavior in random systems.",

author = "Ralph Chamberlin and Haines, {D. N.}",

note = "Funding Information: Important discussions with R. BShmer and G.H. Wolf are gratefully acknowledged. The authors also thank C.A. Angell, M.G. McLin, and H.G.K. Sundar for providing the stress relaxation data. Research was supported by ONR N00014-88-K-0094.",

year = "1990",

doi = "10.1103/PhysRevLett.65.2197",

language = "English (US)",

volume = "65",

pages = "2197--2200",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

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T1 - Percolation model for relaxation in random systems

AU - Chamberlin, Ralph

AU - Haines, D. N.

N1 - Funding Information: Important discussions with R. BShmer and G.H. Wolf are gratefully acknowledged. The authors also thank C.A. Angell, M.G. McLin, and H.G.K. Sundar for providing the stress relaxation data. Research was supported by ONR N00014-88-K-0094.

PY - 1990

Y1 - 1990

N2 - We have measured the magnetic relaxation of several Au:Fe alloys from 10-5 to 104 sec after removing an applied field. The quality and range of the data are sufficient to demonstrate significant deviations from all functions previously used to characterize the dynamics of similar systems. A simple model, activated relaxation of dispersive excitations on a percolation distribution of finite-sized domains, gives excellent agreement with the measurements and may provide a common link between fundamental excitations and observed behavior in random systems.

AB - We have measured the magnetic relaxation of several Au:Fe alloys from 10-5 to 104 sec after removing an applied field. The quality and range of the data are sufficient to demonstrate significant deviations from all functions previously used to characterize the dynamics of similar systems. A simple model, activated relaxation of dispersive excitations on a percolation distribution of finite-sized domains, gives excellent agreement with the measurements and may provide a common link between fundamental excitations and observed behavior in random systems.

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U2 - 10.1103/PhysRevLett.65.2197

DO - 10.1103/PhysRevLett.65.2197

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JO - Physical Review Letters

JF - Physical Review Letters

IS - 17

ER -

Percolation model for relaxation in random systems

Abstract

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