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Structural transitions and superconductivity in (La1-xBax-ySry)2CuO4

Authors
Journal
Physica B Condensed Matter
0921-4526
Publisher
Elsevier
Publication Date
Identifiers
DOI: 10.1016/s0921-4526(09)80430-4
Disciplines
  • Physics

Abstract

We report on the interplay among the structural transitions, transport anomalies and superconductivity in (La 1-xBa x-ySr y) 2CuO 4. Here the amount of doping is held at x = 0.0625 and the structural transition temperatures are controlled by a parameter y. The appearance of the low-temperature tetragonal phase and the depression of superconductivity correlate well, but unlike in (La 1-xBa x) 2CuO 4 the transport anomalies can be decoupled from the structural transition, implying the presence of a new instability in the electronic state.

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