Pregled bibliografske jedinice broj: 827
An investigation of the irreversibility line in Bi2Sr2CaCu2O8 single crystals
An investigation of the irreversibility line in Bi2Sr2CaCu2O8 single crystals // Physica. C, Superconductivity, 242 (1995), 3-4; 233-245 doi:10.1016/0921-4534(94)02411-1 (međunarodna recenzija, članak, znanstveni)
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Naslov
An investigation of the irreversibility line in Bi2Sr2CaCu2O8 single crystals
Autori
Supple, F. ; Campbell, A. M. ; Cooper, John Robert
Izvornik
Physica. C, Superconductivity (0921-4534) 242
(1995), 3-4;
233-245
Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni
Ključne riječi
perpendicular magnetic-field ; mixed state ; flux creep ; superconductors ; behavior ; fluctuations ; resistivity
Sažetak
Measurements of the irreversibility line for a BSCCO single crystal have been made using resistivity, AC susceptibility (ACS), and DC magnetisation. The ACS results were calibrated by measuring a square of silver with similar dimensions. The results are in agreement with previous work which interpreted the AC susceptibility in terms of a skin- depth effect rather than a phase transition. However, discrepancies appear at high fields and a number of explanations are postulated. The behaviour of the resistivity can be divided into two regimes. The low-resistance regime is explained well by the thermally activated flux flow (TAFF) model. At high resistivities the pinning centres are ineffective and flux-flow resistivity should be dominant. However, the Bardeen-Stephen model does not work, but an alternative explanation based on fluctuations fits well.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
POVEZANOST RADA
Citiraj ovu publikaciju:
Časopis indeksira:
- Current Contents Connect (CCC)
- Web of Science Core Collection (WoSCC)
- Science Citation Index Expanded (SCI-EXP)
- SCI-EXP, SSCI i/ili A&HCI
- Scopus
