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 Pine 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.
Temperature dependent modulation amplitude of the CuO2 superconducting plane in La2CuO4.1 / A., Lanzara; Saini, Naurang Lal; Bianconi, Antonio; J. L., Hazemann; Y., Soldo; F. C., Chou; D. C., Johnston. - In: PHYSICAL REVIEW. B, CONDENSED MATTER. - ISSN 0163-1829. - STAMPA. - 55:(1997), pp. 9120-9124. [10.1103/PhysRevB.55.9120]
Temperature dependent modulation amplitude of the CuO2 superconducting plane in La2CuO4.1
SAINI, Naurang Lal;BIANCONI, Antonio;
1997
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 Pine 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.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.