V. Kataev et al., ANOMALOUS MICROWAVE-ABSORPTION IN BI-2212 HIGH-TEMPERATURE SUPERCONDUCTORS WITH THE PARAMAGNETIC MEISSNER EFFECT, JETP letters, 58(8), 1993, pp. 636-641
The results of the experimental study of an anomaly in low magnetic fi
eld microwave absorption in polycrystalline Bi high-temperature superc
onductors are presented. These results show the presence of the so-cal
led paramagnetic Meissner effect. The data obtained are evidence for t
he common origin of the two effects which may occur due to the presenc
e in the samples of weak links with inverse Josephson coupling (the pi
-contacts).