Publications Details

$^{139}$La NMR and NQR study of the temperature dependent structure of La$_2$CuO$_{4+δ}$

Schirber, J.E.

NMR and NQR reveal substantial structural changes in the metallic phase of La₂CuO_4+δ which occur below 220 K. The oxygen octahedra in the metallic phase are not tilted at phase separation; upon cooling to 40 K considerable tilt has developed. The low temperature structure is highly disordered.