Anisotropy of nonlinear properties of Bi2Sr2CaCu2O8crystals in a magnetic field
| Autor: | V K Sobolevskii, M A Zelikman |
|---|---|
| Rok vydání: | 2000 |
| Předmět: |
Superconductivity
Materials science Condensed matter physics Metals and Alloys Astrophysics::Cosmology and Extragalactic Astrophysics Condensed Matter Physics Magnetic field Nonlinear system Amplitude Nuclear magnetic resonance Harmonics visual_art Materials Chemistry Ceramics and Composites Perpendicular visual_art.visual_art_medium Ceramic Electrical and Electronic Engineering Anisotropy |
| Zdroj: | Superconductor Science and Technology. 13:439-442 |
| ISSN: | 1361-6668 0953-2048 |
| DOI: | 10.1088/0953-2048/13/4/317 |
| Popis: | The nonlinear response of a high-temperature superconductor to an external ac magnetic field has been studied experimentally as a function of sample orientation relative to ac and dc external magnetic fields. The even harmonics of the response vanish in the case of a ceramic sample if the dc magnetic field is perpendicular to the ac field. This is not the case for a crystalline Bi2 Sr2 CaCu2 O8 sample where the amplitudes of even harmonics vary periodically with a sample rotated about the ac field. To explain this effect, a theoretical model taking into account the sample crystal structure is proposed. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|