Low-field FMR studies of magnetic confinement effects in patterned ferromagnetic thin films

V. Bhat; J. Woods; J. T. Hastings; L. E. De Long; J. Sklenar; J. B. Ketterson; O. Heinonen; K. Rivkin; V. Metlushko

doi:10.1109/ICEAA.2011.6046431

Low-field FMR studies of magnetic confinement effects in patterned ferromagnetic thin films

V. Bhat^*, J. Woods, J. T. Hastings, L. E. De Long, J. Sklenar, J. B. Ketterson, O. Heinonen, K. Rivkin, V. Metlushko

^*Corresponding author for this work

Physics and Astronomy

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

We have performed broad-band (10 MHz-20 GHz) and tuned cavity (9.7 GHz) ferromagnetic resonance measurements on permalloy thin films patterned with square lattices of circular, square and diamond-shaped antidots of various sizes and separations. We observe remarkably reproducible mode structures in the low-frequency, hysteretic regime in which various domain wall patterns and unsaturated magnetization textures exist and are strongly affected by the geometry of the antidot lattice. The field, frequency and angular dependences of the observed modes (some of which have not been previously observed) are generally in good agreement with our micromagnetic simulations.

Original language	English (US)
Title of host publication	Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11
Pages	718-721
Number of pages	4
DOIs	https://doi.org/10.1109/ICEAA.2011.6046431
State	Published - 2011
Event	2011 13th International Conference on Electromagnetics in Advanced Applications, ICEAA'11 - Torino, Italy Duration: Sep 12 2011 → Sep 16 2011

Publication series

Name	Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11

Other

Other	2011 13th International Conference on Electromagnetics in Advanced Applications, ICEAA'11
Country/Territory	Italy
City	Torino
Period	9/12/11 → 9/16/11

ASJC Scopus subject areas

Electrical and Electronic Engineering
Electronic, Optical and Magnetic Materials

Access to Document

10.1109/ICEAA.2011.6046431

Cite this

Bhat, V., Woods, J., Hastings, J. T., De Long, L. E., Sklenar, J., Ketterson, J. B., Heinonen, O., Rivkin, K., & Metlushko, V. (2011). Low-field FMR studies of magnetic confinement effects in patterned ferromagnetic thin films. In Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11 (pp. 718-721). [6046431] (Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11). https://doi.org/10.1109/ICEAA.2011.6046431

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title = "Low-field FMR studies of magnetic confinement effects in patterned ferromagnetic thin films",

abstract = "We have performed broad-band (10 MHz-20 GHz) and tuned cavity (9.7 GHz) ferromagnetic resonance measurements on permalloy thin films patterned with square lattices of circular, square and diamond-shaped antidots of various sizes and separations. We observe remarkably reproducible mode structures in the low-frequency, hysteretic regime in which various domain wall patterns and unsaturated magnetization textures exist and are strongly affected by the geometry of the antidot lattice. The field, frequency and angular dependences of the observed modes (some of which have not been previously observed) are generally in good agreement with our micromagnetic simulations.",

author = "V. Bhat and J. Woods and Hastings, {J. T.} and {De Long}, {L. E.} and J. Sklenar and Ketterson, {J. B.} and O. Heinonen and K. Rivkin and V. Metlushko",

year = "2011",

doi = "10.1109/ICEAA.2011.6046431",

language = "English (US)",

isbn = "9781612849782",

series = "Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11",

pages = "718--721",

booktitle = "Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11",

note = "2011 13th International Conference on Electromagnetics in Advanced Applications, ICEAA'11 ; Conference date: 12-09-2011 Through 16-09-2011",

}

Bhat, V, Woods, J, Hastings, JT, De Long, LE, Sklenar, J, Ketterson, JB, Heinonen, O, Rivkin, K & Metlushko, V 2011, Low-field FMR studies of magnetic confinement effects in patterned ferromagnetic thin films. in Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11., 6046431, Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11, pp. 718-721, 2011 13th International Conference on Electromagnetics in Advanced Applications, ICEAA'11, Torino, Italy, 9/12/11. https://doi.org/10.1109/ICEAA.2011.6046431

Low-field FMR studies of magnetic confinement effects in patterned ferromagnetic thin films. / Bhat, V.; Woods, J.; Hastings, J. T. et al.

Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11. 2011. p. 718-721 6046431 (Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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AU - Bhat, V.

AU - Woods, J.

AU - Hastings, J. T.

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AU - Ketterson, J. B.

AU - Heinonen, O.

AU - Rivkin, K.

AU - Metlushko, V.

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N2 - We have performed broad-band (10 MHz-20 GHz) and tuned cavity (9.7 GHz) ferromagnetic resonance measurements on permalloy thin films patterned with square lattices of circular, square and diamond-shaped antidots of various sizes and separations. We observe remarkably reproducible mode structures in the low-frequency, hysteretic regime in which various domain wall patterns and unsaturated magnetization textures exist and are strongly affected by the geometry of the antidot lattice. The field, frequency and angular dependences of the observed modes (some of which have not been previously observed) are generally in good agreement with our micromagnetic simulations.

AB - We have performed broad-band (10 MHz-20 GHz) and tuned cavity (9.7 GHz) ferromagnetic resonance measurements on permalloy thin films patterned with square lattices of circular, square and diamond-shaped antidots of various sizes and separations. We observe remarkably reproducible mode structures in the low-frequency, hysteretic regime in which various domain wall patterns and unsaturated magnetization textures exist and are strongly affected by the geometry of the antidot lattice. The field, frequency and angular dependences of the observed modes (some of which have not been previously observed) are generally in good agreement with our micromagnetic simulations.

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Bhat V, Woods J, Hastings JT, De Long LE, Sklenar J, Ketterson JB et al. Low-field FMR studies of magnetic confinement effects in patterned ferromagnetic thin films. In Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11. 2011. p. 718-721. 6046431. (Proceedings - 2011 International Conference on Electromagnetics in Advanced Applications, ICEAA'11). doi: 10.1109/ICEAA.2011.6046431

Low-field FMR studies of magnetic confinement effects in patterned ferromagnetic thin films

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