1996 Fiscal Year Final Research Report Summary
Quasiparticle in the Vortex State of Superconductors Probed by Microwav.
| Project/Area Number |
07454072
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
固体物性Ⅱ(磁性・金属・低温)
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| Research Institution | HOKKAIDO UNIVERSITY |
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Principal Investigator |
MATSUDA Yuji Department of Physics, Faculty of Science, Hokkaido University Associate Professor, 大学院・理学研究科, 助教授 (50199816)
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| Co-Investigator(Kenkyū-buntansha) |
KOMIYAMA Susumu University of Tokyo, Department of Pureand Applied Sciences, Professor, 大学院・総合文化研究科, 教授 (00153677)
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| Project Period (FY) |
1995 – 1996
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| Keywords | Josephson Effect / High-Tc Superconductor / Josephson Plasma / Quasiparticle / Cooper Pair / Microwave / Cyclotron Resonance |
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| Research Abstract |
The most important result in this research is the discovery of the Josephson plasma resonance. It has been already reported an anomalous microwave absorption in the vortex state of Bi_2Sr_2CaCu_2O_<8+delta>, which is one of the most anisotropic material in high temperature superconductors. This phenomena has been explained by such as cyclotron resonance of the quasiparticle. However, by measuring the microwave absorption in geometry of the several different geometries, we uncovered that this resonance arises from the Josephson plasma oscillation mode.
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