Antiferromagnetic Correlations versus Superfluid Density in La_{2-x}Sr_xCuO_4

Abstract

We have performed muon spin relaxation and low field ac-susceptibility measurements in a series of high quality samples of La_{2-x}Sr_xCuO_4 (x=0.08-0.24) as a function of temperature. Superconductivity is found to coexist with low temperature spin glass order up to the optimally doped region where the normal state pseudogap also closes. The systematic depletion of the superfluid density with the enhancement of aniferromagnetic correlations with underdoping indicates a competition between antiferromagnetic correlations and superconductivity.

5 pages, 4 figures M^2S

References in corpus (1)

• Effects of carrier concentration on the superfluid density of high-T_c cuprates

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• Correlations Between Charge Ordering and Local Magnetic Fields in Overdoped YBa${}_2$Cu${}_3$O${}_{6+x}$
• Flux pinning and phase separation in oxygen rich La2-xSrxCuO4+y system
• Ferromagnetic exchange field stabilized antiferromagnetic ordering in a cuprate superconductor