NEUTRON SPECTROSCOPIC EVIDENCE FOR CLUSTER FORMATION AND PERCOLATIVE SUPERCONDUCTIVITY IN PR2-XCEXCUO4-DELTA LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.2)

Authors
HENGGELER W CUNTZE G KLAUDA M MESOT J FURRER A SAEMANNISCHENKO G
Citation
W. Henggeler et al., NEUTRON SPECTROSCOPIC EVIDENCE FOR CLUSTER FORMATION AND PERCOLATIVE SUPERCONDUCTIVITY IN PR2-XCEXCUO4-DELTA LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.2), Physica. C, Superconductivity, 235, 1994, pp. 1697-1698
Citations number
7
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
3
Pages
1697 - 1698
Database
ISI
SICI code
0921-4534(1994)235:<1697:NSEFCF>2.0.ZU;2-N
Abstract
Inelastic neutron scattering has been employed to investigate the low- lying crystal-field excitations of Pr2-xCexCuO4-delta as a function of Ce content x. The observed energy spectra are found to result from a superposition of three different components which we interpret in term s of local regions of antiferromagnetic, intermediately doped and high ly doped character. The volume fraction of the doped clusters is shown to reach the percolation limit for x approximate to 0.14 where the on set of superconductivity is actually observed.