Magnetic penetration depth and flux dynamics in single-crystalBi2Sr2CaCu2O8+δ
| Autor: | Aharon Kapitulnik, Williams Dl, D. R. Harshman, Rafael N. Kleiman, M. Inui, Pfiz T, G. P. Espinosa, David B. Mitzi |
|---|---|
| Rok vydání: | 1991 |
| Předmět: |
Superconductivity
Physics chemistry.chemical_classification Muon Condensed matter physics Computer Science::Information Retrieval General Physics and Astronomy Second moment of area chemistry Condensed Matter::Superconductivity Cuprate Penetration depth Single crystal Motional narrowing Inorganic compound |
| Zdroj: | Physical Review Letters. 67:3152-3155 |
| ISSN: | 0031-9007 |
| DOI: | 10.1103/physrevlett.67.3152 |
| Popis: | The muon-spin-relaxation technique has been used to study vortex dynamics in single-phase superconducting single crystals of Bi{sub 2}Sr{sub 2}CaCu{sub 2}O{sub 8+{delta}} ({ital T}{sub {ital c}}{approx}90 K). The data indicate motional narrowing of the internal field distribution due to vortex motion (on a time scale comparable to the muon lifetime). A field-dependent lattice transition is also observed at {ital T}{sub {ital x}}{similar to}30 K, as evidenced by the onset of an asymmetric line shape below {ital T}{sub {ital x}}. Narrowing arising from disordering of the vortices along (001) is also discussed with reference to its effect on the measured penetration depth. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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