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Persistent URL http://purl.org/net/epubs/work/36571
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Record Id 36571
Title Magnetic analog of the isotope effect in cuprates
Abstract We present extensive magnetic measurements of the (CaxLa1-x)(Ba1.75-xLa0.25+x)Cu3Oy system with its four different families (x) having a Tcmax(x) variation of 28% and minimal structural changes. For each family, we measured the NĂ©el temperature, the anisotropies of the magnetic interactions, and the spin-glass temperature. Our results exhibit a universal relation Tc=cJns for all families, where c~1, J is the in-plane Heisenberg exchange, and ns is the superconducting carrier density. This relates cuprate superconductivity to magnetism in the same sense that phonon-mediated superconductivity is related to atomic mass.
Organisation CCLRC , ISIS , ISIS-MuSR
Keywords Physics , 74.40.+k , 05.70.Ln , 74.25.Fy , 74.62.-c , ISIS 2007
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Language English (EN)
Type Details URI(s) Local file(s) Year
Journal Article Phys Rev B 74 (2006): 220508. 10.1103/PhysRevB.74.220508 2006