Measurement of magnetic field penetration depth in YBa2Cu3O7−gd single crystals by surface paramagnetic probes

Autor: Larry Kevan, Micky Puri
Rok vydání: 1992
Předmět:
Zdroj: Physica C: Superconductivity. 197:53-56
ISSN: 0921-4534
DOI: 10.1016/0921-4534(92)90233-3
Popis: The applicability of electron spin resonance line broadening of a diphenylpicrylhydrazyl paramagnetic probe for measuring the magnetic field penetration depth into the surface of a YBa 2 Cu 3 O 7−δ single crystal superconductor is studied. The temperature dependence follows a [1−( T / T c ) 4 ] relation where T c is the superconducting transition temperature, and the average magnetic field penetration depth in YBa 2 Cu 3 O 7−δ single crystals is determined to be 6250 A.
Databáze: OpenAIRE