High frequency magneto-impedance effects in (Co-Ti-O)/Bi-Ti-O multilayer films

H. Kijima; Y. Zhang; N. Kobayashi; S. Ohnuma; P. Muralt; N. Setter; H. Masumoto

doi:10.1109/ISAF.2013.6748674

High frequency magneto-impedance effects in (Co-Ti-O)/Bi-Ti-O multilayer films

H. Kijima, Y. Zhang, N. Kobayashi, S. Ohnuma, P. Muralt, N. Setter, H. Masumoto

Research output: Contribution to conference › Paper › peer-review

Abstract

(Co-Ti-O)/Bi-Ti-O multilayer films with 9 Co-Ti-O layers are prepared by tandem sputtering. The high frequency soft magnetic properties and magneto-impedance effects were investigated in the frequency range from 0.1 to 10 GHz. The films maintain the real part of permeability μ′ = 30 up to a few GHz, and exhibit a clear peak of imaginary part of permeability μ″ = 76.4 at the resonance frequency (f_r). The μ″ value at f_r decreases with increasing an external magnetic field (H_ex) applied parallel to the rf magnetic field. From the frequency response of the films, the admittance (Y) shows notable change near f _r, which decrease with increasing H_ex.

Original language	English
Pages	56-58
Number of pages	3
DOIs	https://doi.org/10.1109/ISAF.2013.6748674
Publication status	Published - 2013
Event	2013 Joint IEEE International Symposium on Applications of Ferroelectric and Workshop on Piezoresponse Force Microscopy, ISAF/PFM 2013 - Prague 4, Czech Republic Duration: 2013 Jul 21 → 2013 Jul 25

Other

Other	2013 Joint IEEE International Symposium on Applications of Ferroelectric and Workshop on Piezoresponse Force Microscopy, ISAF/PFM 2013
Country/Territory	Czech Republic
City	Prague 4
Period	13/7/21 → 13/7/25

Keywords

high frequency soft magnetic properties
magneto-impedance effect
multifunctional properties
thin film

ASJC Scopus subject areas

Electrical and Electronic Engineering

Access to Document

10.1109/ISAF.2013.6748674

Cite this

Kijima, H., Zhang, Y., Kobayashi, N., Ohnuma, S., Muralt, P., Setter, N., & Masumoto, H. (2013). High frequency magneto-impedance effects in (Co-Ti-O)/Bi-Ti-O multilayer films. 56-58. Paper presented at 2013 Joint IEEE International Symposium on Applications of Ferroelectric and Workshop on Piezoresponse Force Microscopy, ISAF/PFM 2013, Prague 4, Czech Republic. https://doi.org/10.1109/ISAF.2013.6748674

High frequency magneto-impedance effects in (Co-Ti-O)/Bi-Ti-O multilayer films. / Kijima, H.; Zhang, Y.; Kobayashi, N. et al.

2013. 56-58 Paper presented at 2013 Joint IEEE International Symposium on Applications of Ferroelectric and Workshop on Piezoresponse Force Microscopy, ISAF/PFM 2013, Prague 4, Czech Republic.

Research output: Contribution to conference › Paper › peer-review

Kijima, H, Zhang, Y, Kobayashi, N, Ohnuma, S, Muralt, P, Setter, N & Masumoto, H 2013, 'High frequency magneto-impedance effects in (Co-Ti-O)/Bi-Ti-O multilayer films', Paper presented at 2013 Joint IEEE International Symposium on Applications of Ferroelectric and Workshop on Piezoresponse Force Microscopy, ISAF/PFM 2013, Prague 4, Czech Republic, 13/7/21 - 13/7/25 pp. 56-58. https://doi.org/10.1109/ISAF.2013.6748674

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abstract = "(Co-Ti-O)/Bi-Ti-O multilayer films with 9 Co-Ti-O layers are prepared by tandem sputtering. The high frequency soft magnetic properties and magneto-impedance effects were investigated in the frequency range from 0.1 to 10 GHz. The films maintain the real part of permeability μ′ = 30 up to a few GHz, and exhibit a clear peak of imaginary part of permeability μ″ = 76.4 at the resonance frequency (fr). The μ″ value at fr decreases with increasing an external magnetic field (Hex) applied parallel to the rf magnetic field. From the frequency response of the films, the admittance (Y) shows notable change near f r, which decrease with increasing Hex.",

keywords = "high frequency soft magnetic properties, magneto-impedance effect, multifunctional properties, thin film",

author = "H. Kijima and Y. Zhang and N. Kobayashi and S. Ohnuma and P. Muralt and N. Setter and H. Masumoto",

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doi = "10.1109/ISAF.2013.6748674",

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AU - Kijima, H.

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AU - Ohnuma, S.

AU - Muralt, P.

AU - Setter, N.

AU - Masumoto, H.

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AB - (Co-Ti-O)/Bi-Ti-O multilayer films with 9 Co-Ti-O layers are prepared by tandem sputtering. The high frequency soft magnetic properties and magneto-impedance effects were investigated in the frequency range from 0.1 to 10 GHz. The films maintain the real part of permeability μ′ = 30 up to a few GHz, and exhibit a clear peak of imaginary part of permeability μ″ = 76.4 at the resonance frequency (fr). The μ″ value at fr decreases with increasing an external magnetic field (Hex) applied parallel to the rf magnetic field. From the frequency response of the films, the admittance (Y) shows notable change near f r, which decrease with increasing Hex.

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High frequency magneto-impedance effects in (Co-Ti-O)/Bi-Ti-O multilayer films

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