Determination of the Local Lattice Distortions in the CuO2 Plane of La1.85Sr0.15CuO4

A. Bianconi, N. L. Saini, A. Lanzara, M. Missori, T. Rossetti, H. Oyanagi, H. Yamaguchi, K. Oka, and T. Ito
Phys. Rev. Lett. 76, 3412 – Published 29 April 1996
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Abstract

The measurement of the Cu-O distances by a local and fast probe, polarized Cu K-edge extended x-ray absorption fine structure (EXAFS) in La1.85Sr0.15CuO4 crystal shows two different conformations of the CuO6 octahedra below 100 K assigned to two types of stripes with different lattice. This experiment supports a model of “two components” spatially separated in a superlattice of quantum stripes for the anomalous properties of cuprate superconductors.

  • Received 8 June 1995

DOI:https://doi.org/10.1103/PhysRevLett.76.3412

©1996 American Physical Society

Authors & Affiliations

A. Bianconi, N. L. Saini, A. Lanzara, M. Missori, and T. Rossetti

  • Dipartimento di Fisica, Università di Roma “La Sapienza,” P. A. Moro 2, 00185 Roma, Italy

H. Oyanagi, H. Yamaguchi, K. Oka, and T. Ito

  • Electrotechnical Laboratory, Umezono, Tsukuba, Ibaraki 305 Tsukuba, Japan

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Vol. 76, Iss. 18 — 29 April 1996

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