Muon depolarization and magnetic field penetration depth in superconductingGdBa2Cu3Ox

Autor: D. W. Cooke, M. E. Schillaci, C. Boekema, R. L. Hutson, J. A. Flint, J. Oostens, J. L. Smith, J. O. Willis, R. L. Lichti, S. P. Weathersby, M. A. Maez, H. Rempp, K. C. B. Chan, R.S. Kwok
Rok vydání: 1988
Předmět:
Zdroj: Physical Review B. 37:9401-9404
ISSN: 0163-1829
DOI: 10.1103/physrevb.37.9401
Popis: Positive muon spin-rotation ($\ensuremath{\mu}\mathrm{SR}$) measurements on $\mathrm{Gd}{\mathrm{Ba}}_{2}{\mathrm{Cu}}_{3}{\mathrm{O}}_{x} (x\ensuremath{\approx}7)$ have been conducted in the temperature interval 5.8-300 K. A temperature-dependent relaxation, attributable to Korringa relaxation of the Gd ion, as well as vortex-state relaxation are observed. Magnetic field penetration depths of approximately 1550 and 1900 \AA{} (two samples) are extracted from the data. Two muon stopping sites exist for $T\ensuremath{\le}80$ K, one being associated with normal regions of the sample and the other with superconducting regions.
Databáze: OpenAIRE