Abstract
The vortex order-disorder phase transition line in (La0.937Sr0.063)2CuO4 exhibits a steep concave decrease throughout the whole temperature range. This unusual behavior is explained postulating that in (La0.937Sr0.063)2CuO4, both thermal and disorder-induced fluctuations take part in destabilizing the vortex lattice. Irradiation of the samples with electrons causes a significant decrease in both the magnitude of the transition field and the curvature of the transition line. These results are interpreted as caused by the enhanced role of disorder-induced fluctuations as compared with thermal fluctuations.
Original language | English |
---|---|
Pages (from-to) | 753-754 |
Number of pages | 2 |
Journal | Physica C: Superconductivity and its Applications |
Volume | 388-389 |
DOIs | |
State | Published - May 2003 |
Event | Proceedings of the 23rd international conference on low temper - Hiroshima, Japan Duration: 20 Aug 2002 → 27 Aug 2002 |
Bibliographical note
Funding Information:A.S. acknowledges support from the Israel Science Foundation. This research was supported by The Israel Science Foundation––Center of Excellence Program, and by the Heinrich Hertz Minerva Center for High Temperature Superconductivity.
Funding
A.S. acknowledges support from the Israel Science Foundation. This research was supported by The Israel Science Foundation––Center of Excellence Program, and by the Heinrich Hertz Minerva Center for High Temperature Superconductivity.
Funders | Funder number |
---|---|
Heinrich Hertz Minerva Center | |
Israel Science Foundation |
Keywords
- Electron irradiation
- High-temperature superconductors
- LaSrCuO
- Vortex matter
- Vortex phase transitions