Construction of a Vernier Tandem (3+3)-Pass Brillouin Spectrometer and Its Application to Surface Acoustic Wave Study in Metallic Multilayer Films
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概要
- 論文の詳細を見る
In order to study the elastic and magnetic properties of metallic multilayers by Brillouin scattering, we have constructed a (3+3)-pass vernier tandem Fabry-Perot interferometer. We have also developed master/slave and time-sharing techniques and electronics to stabilize the interferometer during a long spectrum accumulation period of over several hours. In this report, we describe the details of the tandem spectrometer and the control techniques. As an application of the tandem spectrometer, we have studied sound velocity of Rayleigh surface waves existing in Ag/Cu multilayers as a function of the multilayer period. We have observed considerable softening of more than 20% of the surface velocity as the multilayer period decreases from 150 Å to 7 Å.
- 社団法人応用物理学会の論文
- 1994-05-30
著者
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YOSHIHARA Akira
Research Institute for Scientific Measurements, Tohoku University
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Yoshihara Akira
Research Institute For Science Measurements Tohoku University
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