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Anisotropy inc-axis oriented YBa2Cu3O7−δ |
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| Authors: | R L Lichti T R Adams D W Cooke R S Kwok C Boekema J C Lam D E Farrell N Bansal |
| Institution: | (1) Physics Department, Texas Tech University, 79409 Lubbock, TX, USA;(2) Los Alamos National Laboratory, 87545 Los Alamos, NM, USA;(3) Physics Department, San Jose State University, 95192 San Jose, CA, USA;(4) Physics Department, Case Western Reserve University, 44106 Cleveland, OH, USA |
| Abstract: | Muon spin relaxation (μSR) data taken at LAMPF on ac-axis oriented fine powder sample of YBa2Cu3O7−δ (YBCO) embedded in epoxy are analyzed for relaxation rate anisotropy. Clear differences beyond simple magnetic field penetration depth anisotropy are observed forB‖c andB c. The low-temperature anisotropy ratio is consistent with oriented ceramic data. Small crystallite size and anisotropic flux pinning characteristics are suggested as the fundamental cause of the additional effects. |
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