Interpreting logarithmic decay

Ivo Klik; Ching Ray Chang; J. Lee

doi:10.1063/1.357007

Interpreting logarithmic decay

Ivo Klik^*, Ching Ray Chang, J. Lee

^*Corresponding author for this work

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

3 Scopus citations

Abstract

We consider an array of thermally relaxing single domain particles with lognormal distribution of nucleation fields. At a constant applied field we calculate the mean magnetization and the magnetic viscosity and irreversible susceptibility due to thermal activation, and analyze the existence conditions of logarithmic decay and the time interval on which it can be observed. For very narrow distributions multiexponential decay is obtained. An approximate relation between magnetic viscosity and irreversible susceptibility is proposed and the influence of activation volume distribution is included.

Original language	English
Pages (from-to)	5505-5507
Number of pages	3
Journal	Journal of Applied Physics
Volume	75
Issue number	10
DOIs	https://doi.org/10.1063/1.357007
State	Published - 1994
Externally published	Yes

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@article{0d79326898534c42a8e96246a96e6922,

title = "Interpreting logarithmic decay",

abstract = "We consider an array of thermally relaxing single domain particles with lognormal distribution of nucleation fields. At a constant applied field we calculate the mean magnetization and the magnetic viscosity and irreversible susceptibility due to thermal activation, and analyze the existence conditions of logarithmic decay and the time interval on which it can be observed. For very narrow distributions multiexponential decay is obtained. An approximate relation between magnetic viscosity and irreversible susceptibility is proposed and the influence of activation volume distribution is included.",

author = "Ivo Klik and Chang, {Ching Ray} and J. Lee",

year = "1994",

doi = "10.1063/1.357007",

language = "英语",

volume = "75",

pages = "5505--5507",

journal = "Journal of Applied Physics",

issn = "0021-8979",

publisher = "American Institute of Physics",

number = "10",

}

TY - JOUR

T1 - Interpreting logarithmic decay

AU - Klik, Ivo

AU - Chang, Ching Ray

AU - Lee, J.

PY - 1994

Y1 - 1994

N2 - We consider an array of thermally relaxing single domain particles with lognormal distribution of nucleation fields. At a constant applied field we calculate the mean magnetization and the magnetic viscosity and irreversible susceptibility due to thermal activation, and analyze the existence conditions of logarithmic decay and the time interval on which it can be observed. For very narrow distributions multiexponential decay is obtained. An approximate relation between magnetic viscosity and irreversible susceptibility is proposed and the influence of activation volume distribution is included.

AB - We consider an array of thermally relaxing single domain particles with lognormal distribution of nucleation fields. At a constant applied field we calculate the mean magnetization and the magnetic viscosity and irreversible susceptibility due to thermal activation, and analyze the existence conditions of logarithmic decay and the time interval on which it can be observed. For very narrow distributions multiexponential decay is obtained. An approximate relation between magnetic viscosity and irreversible susceptibility is proposed and the influence of activation volume distribution is included.

UR - http://www.scopus.com/inward/record.url?scp=0542450935&partnerID=8YFLogxK

U2 - 10.1063/1.357007

DO - 10.1063/1.357007

M3 - 文章

AN - SCOPUS:0542450935

SN - 0021-8979

VL - 75

SP - 5505

EP - 5507

JO - Journal of Applied Physics

JF - Journal of Applied Physics

IS - 10

ER -

Interpreting logarithmic decay

Abstract

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