High frequency impedance spectra on the chromium dioxide thin film

C. M. Fu, C. J. Lai, J. S. Wu, Jung-Chun Huang, C. C. Wu, S. G. Shyu

Research output: Contribution to journalConference article

13 Citations (Scopus)

Abstract

We report on the study of high frequency magnetotransport properties of the chromium dioxide (CrO2) thin films, grown on Si substrate using chemical vapor deposition. The film exhibits a ferromagnetic transition with a Curie temperature near 390 K. The temperature dependent spontaneous magnetization follows Bloch's law. The impedance spectra, being analyzed based on the fundamental electrodynamics, are demonstrated to be in a low-loss dielectric limit along with the occurrence of dielectric relaxation and magnetization response. The specific features of impedance spectra, distinct from the usual metallic ferromagnet, are attributed to the half metallic nature of CrO2. The results explore the possibility for high frequency device applications.

Original languageEnglish
Pages (from-to)7702-7704
Number of pages3
JournalJournal of Applied Physics
Volume89
Issue number11 II
DOIs
Publication statusPublished - 2001 Jun 1
Event8th Joint Magnetism and Magnetic Materials-Intermag Conference - San Antonio, TX, United States
Duration: 2001 Jan 72001 Jan 11

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dioxides
chromium
impedance
magnetization
thin films
dielectric loss
electrodynamics
Curie temperature
vapor deposition
occurrences
temperature

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Fu, C. M., Lai, C. J., Wu, J. S., Huang, J-C., Wu, C. C., & Shyu, S. G. (2001). High frequency impedance spectra on the chromium dioxide thin film. Journal of Applied Physics, 89(11 II), 7702-7704. https://doi.org/10.1063/1.1358352
Fu, C. M. ; Lai, C. J. ; Wu, J. S. ; Huang, Jung-Chun ; Wu, C. C. ; Shyu, S. G. / High frequency impedance spectra on the chromium dioxide thin film. In: Journal of Applied Physics. 2001 ; Vol. 89, No. 11 II. pp. 7702-7704.
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High frequency impedance spectra on the chromium dioxide thin film. / Fu, C. M.; Lai, C. J.; Wu, J. S.; Huang, Jung-Chun; Wu, C. C.; Shyu, S. G.

In: Journal of Applied Physics, Vol. 89, No. 11 II, 01.06.2001, p. 7702-7704.

Research output: Contribution to journalConference article

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