C. Bernhard et al., MUON-SPIN-ROTATION STUDY OF ZN-INDUCED MAGNETIC-MOMENTS IN CUPRATE HIGH-T-C SUPERCONDUCTORS, Physical review. B, Condensed matter, 58(14), 1998, pp. 8937-8940
Using muon spin rotation (mu SR) we searched for evidence of Zn-induce
d magnetic moments in underdoped cuprates. We find that the moments, w
hich in a previous mu SR stady were reported to be Zn induced, exist a
lready in the pure underdoped compound and most likely arise from anti
ferromagnetic correlated Cu(2) spins. We obtain no evidence for additi
onal Zn-induced moments. Nevertheless, we cannot exclude the possibili
ty that Zn-induced magnetic moments exist in case they are very weakly
coupled to the spin system and the mobile charge carriers of the CuO2
planes. [S0163-1829(98)51438-5].