Enhancement of large magnetoresistances in ruthenocuprates by Ta substitution

Literature Information

Publication Date 2007-03-06
DOI 10.1039/B617872C
Impact Factor 6.222
Authors

A. C. Mclaughlin, L. Begg, A. J. McCue, J. P. Attfield


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Abstract

An unexpected enhancement of the large negative magnetoresistance (MR) observed in RuSr2Nd0.95Y0.15Ce0.9Cu2O10−δ up to −47% at 4 K and 9 T is evidenced upon dilution of the Ru magnetic order by substitution of Ta for Ru; this enhancement of −MR scales with the cell volume.

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