Transport and NMR studies of the effect of Ni substitution on superconductivity and the normal-state pseudogap in YBa2Cu4O8
UNSPECIFIED. (1996) Transport and NMR studies of the effect of Ni substitution on superconductivity and the normal-state pseudogap in YBa2Cu4O8. PHYSICAL REVIEW B, 54 (13). pp. 9532-9537. ISSN 0163-1829Full text not available from this repository.
Resistance, thermopower, and Y-89 nuclear magnetic resonance (NMR) measurements have been carried out on YBa2(Cu1-xNix)(4)O-8 superconductors. Nickel substitution reduces both T-c and the pseudogap energy at almost the same rate as does Zn substitution, but unlike Zn substitution, there is no second peak in the Y-89 NMR spectra that can be attributed to Y atoms sited near a local moment. We show that this discrepancy is consistent with there being no local suppression of the normal-state pseudogap about the Ni impurity contrary to the case for Zn.
|Item Type:||Journal Article|
|Subjects:||Q Science > QC Physics|
|Journal or Publication Title:||PHYSICAL REVIEW B|
|Publisher:||AMERICAN PHYSICAL SOC|
|Date:||1 October 1996|
|Number of Pages:||6|
|Page Range:||pp. 9532-9537|
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