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Phys. Rev. Lett. 85, 1738–1741 (2000)

Local Magnetic Order vs Superconductivity in a Layered Cuprate

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N. Ichikawa1,*, S. Uchida1, J. M. Tranquada2, T. Niemöller3, P. M. Gehring4, S.-H. Lee4,5, and J. R. Schneider3
1Department of Superconductivity, School of Engineering, University of Tokyo, 2-11-16 Yayoi, Bunkyo-ku, Tokyo 113-8656, Japan
2Physics Department, Brookhaven National Laboratory, Upton, New York 11973-5000
3Hamburger Synchrotronstrahlungslabor HASYLAB at Deutsches Elektronen-Synchrotron DESY, Notkestrasse 85, D-22603 Hamburg, Germany
4NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899
5University of Maryland, College Park, Maryland 20742

Received 4 October 1999; revised 9 February 2000; published in the issue dated 21 August 2000

We report on the phase diagram for charge-stripe order in La1.6-xNd0.4SrxCuO4, determined by neutron and x-ray scattering studies and resistivity measurements. From an analysis of the in-plane resistivity motivated by recent nuclear-quadrupole-resonance studies, we conclude that the transition temperature for local charge ordering decreases monotonically with x, and hence that local antiferromagnetic order is uniquely correlated with the anomalous depression of superconductivity at x≈1/8. This result is consistent with theories in which superconductivity depends on the existence of charge-stripe correlations.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.1738
DOI:
10.1103/PhysRevLett.85.1738
PACS:
74.25.Fy, 71.45.Lr, 74.72.Dn, 75.30.Fv

*Present address: Institute for Chemical Research, Kyoto University, Uji 611-0011, Japan; CREST, Japan Science and Technology Corporation (JST), Kawaguchi, Saitama 332-0012, Japan.

 
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