Dynamic studies of vortices in NbSe2, from single flux lines to lattices
| Autor: | Peter Ledel Gammel, C. A. Bolle, Vladimir A. Aksyuk, Flavio Pardo, Eli Zeldov, F. de la Cruz, David J. Bishop |
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| Rok vydání: | 2000 |
| Předmět: |
Mesoscopic physics
Materials science Condensed matter physics Energy Engineering and Power Technology Tourbillon Condensed Matter Physics Magnetic flux Electronic Optical and Magnetic Materials Vortex Crystal Condensed Matter::Superconductivity Lattice (order) Electrical and Electronic Engineering Anisotropy Single crystal |
| Zdroj: | Physica C: Superconductivity. 332:160-165 |
| ISSN: | 0921-4534 |
| Popis: | We present different techniques to study the dynamics of the vortex lattice in NbSe2 single crystal samples. In the first set of experiments, we applied a field parallel to the c crystalline axis and extended the Bitter decoration technique to the study of dynamic structures by imaging the lattice during creep (“decoration during motion”). This method exposed a new smectic phase and an anisotropic “crystal” at higher fields. In the second set, we used a micro-mechanical high-Q oscillator to study the mesoscopic flux dynamics along the crystallographic ab plane. In this case, we were able to observe single vortex penetration, well described by a ‘1+1’-dimensional model. |
| Databáze: | OpenAIRE |
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