2000年3月
Abrupt change of Josephson plasma frequency at the phase boundary of the Bragg glass in Bi2Sr2CaCu2O8+delta
PHYSICAL REVIEW LETTERS
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- 巻
- 84
- 号
- 13
- 開始ページ
- 2945
- 終了ページ
- 2948
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- 出版者・発行元
- AMERICAN PHYSICAL SOC
We report the first detailed and quantitative study of the Josephson coupling energy in the vortex liquid, Bragg glass, and vortex glass phases of Bi2Sr2CaCu2O8+delta by the Josephson plasma resonance. The measurements revealed distinct features in the T and H dependencies of the plasma frequency omega(p1) for each of these three vortex phases. When going across either the Bragg-to-vortex glass or the Bragg-to-liquid transition line, omega(p1) shows a dramatic change. We provide a quantitative discussion on the properties of these phase transitions, including the first order nature of the Bragg-to-vortex glass transition.
- リンク情報
- ID情報
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- ISSN : 0031-9007
- Web of Science ID : WOS:000086062000045