Physics – Condensed Matter – Superconductivity
Scientific paper
2003-07-16
Phys. Rev. B 69, 144510 (2004)
Physics
Condensed Matter
Superconductivity
Text, 4 figures
Scientific paper
10.1103/PhysRevB.69.144510
We have studied the spin glass behaviour of non-superconducting La$_{2-x}$Sr$_x$Cu$_{0.95}$Zn$_{0.05}$O$_4$ ($x=0.10-0.22$). As in the superconducting analogues of these samples the spin glass transition temperature $T_g$ decreases with increasing $x$, and vanishes at $x=0.19$. A local enhancement in $T_g$ at $x=0.12$ is also observed and attributed to stripe ordering. The disappearance of $T_g$ for $x\geq0.19$ is discussed in terms of a quantum phase transition.
Hillier Adrian D.
Panagopoulos Christos
Petrović A. P.
Rainford B. D.
Scott Andrew C.
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