THE LINE-SHAPE OF THE ORTHO-II SUPERSTRUCTURE REFLECTION IN YBA2CU3O6.5

Authors
SCHLEGER P HADFIELD R CASALTA H ANDERSEN NH POULSEN HF VONZIMMERMANN M SCHNEIDER JR LIANG RL DOSANJH P HARDY WN
Citation
P. Schleger et al., THE LINE-SHAPE OF THE ORTHO-II SUPERSTRUCTURE REFLECTION IN YBA2CU3O6.5, Physica. C, Superconductivity, 235, 1994, pp. 1269-1270
Citations number
9
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
2
Pages
1269 - 1270
Database
ISI
SICI code
0921-4534(1994)235:<1269:TLOTOS>2.0.ZU;2-K
Abstract
Neutron and synchrotron x-ray measurements of the Ortho-II superstruct ure reflections on a high quality single crystal of YBa2Cu3O6.5 reveal ed that the intrinsic line shape is a Lorentzian to the power 5/2. It is argued that such a line shape implies late-stage domain coarsening of a quenched system ordering in three dimensions (d=3) with a two com ponent order parameter (n=2).