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Melting of the vortex-solid in irradiated Bi 2 Sr 2 CaCu 2 O 8 + δ single crystals in tilted magnetic fields
| Content Provider | Semantic Scholar |
|---|---|
| Author | Mirković, Jovan Savel’ev, Sergey Sato, Hirokazu Nori, Franco Kadowaki, Kazuo |
| Copyright Year | 2006 |
| Abstract | We study the boundary between the vortex-solid and the vortex-liquid phases in the Hc–Hab plane, for irradiated Bi2Sr2CaCu2O8+δ single crystals, by measuring the ac-local magnetic permeability in tilted magnetic fields. For high temperatures and at the phase boundary, we find that the c-axis magnetic field component H trans c decreases linearly when increasing the in-plane magnetic field Hab, surprisingly in a wider angular range than in pristine samples. Strikingly, at lower temperatures, this linear decrease of H trans c (Hab) transforms to a concave, hyperbolic-like, curve that differs even more strongly from the usual Ginzburg– Landau (GL) elliptical phase boundary. We also propose a theoretical approach to solve this puzzle. New Journal of Physics 8 (2006) 226 PII: S1367-2630(06)29199-7 1367-2630/06/010226+14$30.00 © IOP Publishing Ltd and Deutsche Physikalische Gesellschaft 2 Institute of Physics DEUTSCHE PHYSIKALISCHE GESELLSCHAFT |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://dml.riken.jp/pub/nori/pdf/NJP_8_226.pdf |
| Alternate Webpage(s) | https://deepblue.lib.umich.edu/bitstream/handle/2027.42/49054/njp6_10_226.pdf;sequence=2 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |