Effects of interparticle dipole interaction on permalloy thin film arrays

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

Research output: Contribution to journalArticle

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 languageEnglish
Article number10J504
JournalJournal of Applied Physics
Volume97
Issue number10
DOIs
Publication statusPublished - 2005 May 15

Fingerprint

Permalloys (trademark)
magnetometers
magnetic force microscopy
dipoles
thin films
hysteresis
interactions
remanence
coercivity
spacing
magnetization

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Lai, J. Y., Lai, M. F., Chang, C. R., Wei, Z. H., Wu, J-C., Lo, I. C., ... Huang, J. R. (2005). Effects of interparticle dipole interaction on permalloy thin film arrays. Journal of Applied Physics, 97(10), [10J504]. https://doi.org/10.1063/1.1851915
Lai, Jun Yang ; Lai, Mei Feng ; Chang, Ching Ray ; Wei, Zung Hang ; Wu, Jong-Ching ; Lo, I. C. ; Kuo, J. H. ; Chang, Y. C. ; Hsu, Jen Hwa ; Huang, Jia Rui. / Effects of interparticle dipole interaction on permalloy thin film arrays. In: Journal of Applied Physics. 2005 ; Vol. 97, No. 10.
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Lai, JY, Lai, MF, Chang, CR, Wei, ZH, Wu, J-C, Lo, IC, Kuo, JH, Chang, YC, Hsu, JH & Huang, JR 2005, 'Effects of interparticle dipole interaction on permalloy thin film arrays', Journal of Applied Physics, vol. 97, no. 10, 10J504. https://doi.org/10.1063/1.1851915

Effects of interparticle dipole interaction on permalloy thin film arrays. / Lai, Jun Yang; Lai, Mei Feng; Chang, Ching Ray; Wei, Zung Hang; Wu, Jong-Ching; Lo, I. C.; Kuo, J. H.; Chang, Y. C.; Hsu, Jen Hwa; Huang, Jia Rui.

In: Journal of Applied Physics, Vol. 97, No. 10, 10J504, 15.05.2005.

Research output: Contribution to journalArticle

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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

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AU - Wu, Jong-Ching

AU - Lo, I. C.

AU - Kuo, J. H.

AU - Chang, Y. C.

AU - Hsu, Jen Hwa

AU - Huang, Jia Rui

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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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