Fabrication of ferromagnetic/semiconductor waveguide structures and application to microwave bandstop filter

W. wu, C. C. Lee, C. S. Tsai, J. su, W. so, J. Yoo, Wen-Kuei Chuang

研究成果: Article同行評審

3 引文 斯高帕斯(Scopus)

摘要

We studied the propagation of a microwave signal in Fe/Ag–GaAs waveguide structures. In an ultrahigh frequency ferromagnetic resonance measurement, maximum coupling and thus strong attenuation of the microwave power occur near the ferromagnetic resonance frequency [formula omitted] of Fe film. Magnetostatic wave (MSW)-based microwave devices have been achieved in the form of a bandstop filter utilizing single crystal Fe/Ag structures grown on GaAs (100) substrate. MSW-based microwave devices possess the unique capability of electronically tunable operating carrier frequency via a magnetic field. The peak absorption frequency for an Fe easy axis case has been tuned in a range from 10.6 to 36 GHz. For a hard axis case, the tuning frequency ranges from 8 to 22 GHz. The experimental results show that Fe/Ag–GaAs waveguide structures are very promising systems for use in future microwave magnetoelectronics as they have well-defined magnetic properties, as well as favorable electrical properties.

原文English
頁(從 - 到)1758-1762
頁數5
期刊Journal of Vacuum Science and Technology A: Vacuum, Surfaces and Films
19
發行號4
DOIs
出版狀態Published - 2001 1月 1

All Science Journal Classification (ASJC) codes

  • 凝聚態物理學
  • 表面和介面
  • 表面、塗料和薄膜

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