Abstract
Effects of sample size on the second magnetization peak (SMP) in Bi 2Sr2CaCuO8+δ crystals are observed at low temperatures, above the temperature where the SMP totally disappears. In particular, the onset of the SMP shifts to lower fields as the sample size decreases - a result that could be interpreted as a size effect in the order-disorder vortex matter phase transition. However, local magnetic measurements trace this effect to metastable disordered vortex states, revealing the same order-disorder transition induction in samples of different size.
Original language | English |
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Pages (from-to) | 141-147 |
Number of pages | 7 |
Journal | Pramana - Journal of Physics |
Volume | 66 |
Issue number | 1 |
DOIs | |
State | Published - Jan 2006 |
Bibliographical note
Funding Information:The authors would like to thank Tsuyoshi Tamegai for providing us with the Bi2Sr2CaCu2O8+δ crystal. AS acknowledges support from the German–Israel Foundation (GIF). YY acknowledges support from the Wolfson Foundation. This research is supported by the ISF Center of Excellence Program (Grant No. 8003/02) and the Heinrich Hertz Minerva Center for High Temperature Superconductivity.
Funding
The authors would like to thank Tsuyoshi Tamegai for providing us with the Bi2Sr2CaCu2O8+δ crystal. AS acknowledges support from the German–Israel Foundation (GIF). YY acknowledges support from the Wolfson Foundation. This research is supported by the ISF Center of Excellence Program (Grant No. 8003/02) and the Heinrich Hertz Minerva Center for High Temperature Superconductivity.
Funders | Funder number |
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German–Israel Foundation | |
Heinrich Hertz Minerva Center | |
ISF Center of Excellence Program | 8003/02 |
Wolfson Foundation |
Keywords
- BSCCO
- Phase transition
- Vortex matter