Temperature-dependent modulation amplitude of the CuO2 superconducting lattice in La2CuO4.1
A. Lanzara, N. L. Saini, A. Bianconi, J. L. Hazemann, Y. Soldo, F. C. Chou, D. C. Johnston
DOI 10.1103/PhysRevB.55.9120 · Physical Review B
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Abstract
The temperature-dependent amplitude of the Cu-O(planar) bond modulation in the La2CuO4.1 superconducting crystal has been measured by in-plane-polarized Cu K-edge extended x-ray-absorption fine structure. Minority domains characterized by a long Cu-O(planar) bond length are found at T<150 K. The separation between the two Cu-O(planar) distances provides a measure of the amplitude of the CuO2 lattice modulation assigned to a charge-density wave that coexists with the superconducting phase, providing evidence for a broken symmetry.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| La2CuO4.1 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 38 | Pressure not reported | unknown |
| La2CuO4.06 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 40 | Pressure not reported | unknown |
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