B. Andrzejewski et al., INTERGRAIN AND INTRAGRAIN CRITICAL FIELDS IN HTS MEASURED BY MICROWAVE-ABSORPTION, Physica. C, Superconductivity, 235, 1994, pp. 2044-2045
For the first time the method of magnetically modulated microwave abso
rption (MMMA) has been used here to measure the Josephson critical fie
lds and the lower critical field of the grains in a YBaCuO superconduc
tor.