Intra- and intergrain effects in a.c. susceptibility of YBaCuO ceramics
1988; Elsevier BV; Volume: 153-155; Linguagem: Inglês
10.1016/0921-4534(88)90396-6
ISSN1873-2143
AutoresE. Babić, Zˇ. Marohnic ́, Đ. Drobac, M. Prester, Nevenka Brnicˇević,
Tópico(s)Magnetic and transport properties of perovskites and related materials
ResumoThe dependence of the initial magnetic susceptibility on the magnetic field, frequency and density has been investigated for several ceramic YBa2Cu3O7 samples. The superconducting transitions show invariably two steps, associated with the grain and bulk (shielding) effects respectively. The width of transition decreases, whereas the lower critical field increases, with increasing density.
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