ESR INVESTIGATION OF THE EXCHANGE INTERACTION INVOLVING GD-IONS IN THE NORMAL-STATE OF Y1-XGDXBA2CU3O7-DELTA ORIENTED POWDERS

Authors
FILIP C KESSLER C BALIBANU F KLEEMANN P DARABONT A GIURGIU LV MEHRING M
Citation
C. Filip et al., ESR INVESTIGATION OF THE EXCHANGE INTERACTION INVOLVING GD-IONS IN THE NORMAL-STATE OF Y1-XGDXBA2CU3O7-DELTA ORIENTED POWDERS, Physica. C, Superconductivity, 235, 1994, pp. 1645-1646
Citations number
6
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
3
Pages
1645 - 1646
Database
ISI
SICI code
0921-4534(1994)235:<1645:EIOTEI>2.0.ZU;2-G
Abstract
A theoretical analysis concerning the concentration dependence of the exchange-narrowed Gd3+-ESR linewidth in Y1-xGdxBa2CU3O7-delta magnetic ally oriented powders is presented. By comparing the theoretical predi ctions with the experimental ESR linewidths, the exchange coupling con stant, 2J, between Gd nearest-neighbour spins is estimated to be 2J = -6 x 10(-3) meV.