Pair breaking by chain oxygen disorder in light-ion irradiatedYBa2Cu3O | Zendy

D. Arias | Zendy; Z. Sefrioui | Zendy; G. Loos | Zendy; F. AgullóRueda | Zendy; Javier GarcíaBarriocanal | Zendy; C. León | Zendy; J. Santamarı́a | Zendy

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Pair breaking by chain oxygen disorder in light-ion irradiatedYBa2Cu3O

Author(s) -

D. Arias,

Z. Sefrioui,

G. Loos,

F. AgullóRueda,

Javier GarcíaBarriocanal,

C. León,

J. Santamarı́a

Publication year - 2003

Publication title -

physical review. b, condensed matter

Language(s) - English

Resource type - Journals

eISSN - 1095-3795

pISSN - 0163-1829

DOI - 10.1103/physrevb.68.094515

Subject(s) - oxygen , superconductivity , ion , materials science , irradiation , physics , chain (unit) , energy (signal processing) , condensed matter physics , pairing , crystallography , chemistry , nuclear physics , quantum mechanics

We report on the effect of oxygen disorder in the CuO chains on the superconducting properties of oxygen depleted YBa_(2)Cu_(3)O_(x)(YBCO). While moderate disorder, induced thermally, depresses the critical temperature as a result of a reduced carrier concentration, strong oxygen disorder and chain fragmentation induced by low energy (80 keV) He^(+) irradiation suppresses the critical temperature beyond the values expected from the reduction of the carrier density. This provides an experimental evidence of pair breaking by chain disorder and outlines the importance of chain states in the pairing mechanism in the YBCO family

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