Effects of interparticle dipole interaction on permalloy thin film arrays

Jun Yang Lai; Mei Feng Lai; Ching Ray Chang; Zung Hang Wei; J. C. Wu; I. C. Lo; J. H. Kuo; Y. C. Chang; Jen Hwa Hsu; Jia Rui Huang

doi:10.1063/1.1851915

Effects of interparticle dipole interaction on permalloy thin film arrays

Jun Yang Lai, Mei Feng Lai, Ching Ray Chang, Zung Hang Wei, J. C. Wu, I. C. Lo, J. H. Kuo, Y. C. Chang, Jen Hwa Hsu, Jia Rui Huang

Department of Physics

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

3 Citations (Scopus)

Abstract

The magnetic structures and hysteresis loops of permalloy thin film arrays are investigated here using magnetic force microscopy and vibrating sample magnetometer. The strength of interparticle dipole interaction can be revealed by the number of single-domain pairs with antiparallel magnetizations when the array is relaxed from a strong hard-axis field. Besides, hysteresis loops obtained by vibrating sample magnetometer measurements show that arrays with narrower interparticle spacings have lower coercivities and remanences. The results obtained from vibrating sample magnetometer are in very good agreement with magnetic force microscopy imaging.

Original language	English
Article number	10J504
Journal	Journal of Applied Physics
Volume	97
Issue number	10
DOIs	https://doi.org/10.1063/1.1851915
Publication status	Published - 2005 May 15

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

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10.1063/1.1851915

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title = "Effects of interparticle dipole interaction on permalloy thin film arrays",

abstract = "The magnetic structures and hysteresis loops of permalloy thin film arrays are investigated here using magnetic force microscopy and vibrating sample magnetometer. The strength of interparticle dipole interaction can be revealed by the number of single-domain pairs with antiparallel magnetizations when the array is relaxed from a strong hard-axis field. Besides, hysteresis loops obtained by vibrating sample magnetometer measurements show that arrays with narrower interparticle spacings have lower coercivities and remanences. The results obtained from vibrating sample magnetometer are in very good agreement with magnetic force microscopy imaging.",

author = "Lai, {Jun Yang} and Lai, {Mei Feng} and Chang, {Ching Ray} and Wei, {Zung Hang} and Wu, {J. C.} and Lo, {I. C.} and Kuo, {J. H.} and Chang, {Y. C.} and Hsu, {Jen Hwa} and Huang, {Jia Rui}",

year = "2005",

month = may,

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doi = "10.1063/1.1851915",

language = "English",

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T1 - Effects of interparticle dipole interaction on permalloy thin film arrays

AU - Lai, Jun Yang

AU - Lai, Mei Feng

AU - Chang, Ching Ray

AU - Wei, Zung Hang

AU - Wu, J. C.

AU - Lo, I. C.

AU - Kuo, J. H.

AU - Chang, Y. C.

AU - Hsu, Jen Hwa

AU - Huang, Jia Rui

PY - 2005/5/15

Y1 - 2005/5/15

N2 - The magnetic structures and hysteresis loops of permalloy thin film arrays are investigated here using magnetic force microscopy and vibrating sample magnetometer. The strength of interparticle dipole interaction can be revealed by the number of single-domain pairs with antiparallel magnetizations when the array is relaxed from a strong hard-axis field. Besides, hysteresis loops obtained by vibrating sample magnetometer measurements show that arrays with narrower interparticle spacings have lower coercivities and remanences. The results obtained from vibrating sample magnetometer are in very good agreement with magnetic force microscopy imaging.

AB - The magnetic structures and hysteresis loops of permalloy thin film arrays are investigated here using magnetic force microscopy and vibrating sample magnetometer. The strength of interparticle dipole interaction can be revealed by the number of single-domain pairs with antiparallel magnetizations when the array is relaxed from a strong hard-axis field. Besides, hysteresis loops obtained by vibrating sample magnetometer measurements show that arrays with narrower interparticle spacings have lower coercivities and remanences. The results obtained from vibrating sample magnetometer are in very good agreement with magnetic force microscopy imaging.

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