CRYSTAL-FIELD EXCITATION LINEWIDTHS IN (LN(X)Y(1-X))BA2CU3O7 (LN=ER, HO, TM)

Authors
MUKHERJEE A BOOTHROYD AT GARDNER JS
Citation
A. Mukherjee et al., CRYSTAL-FIELD EXCITATION LINEWIDTHS IN (LN(X)Y(1-X))BA2CU3O7 (LN=ER, HO, TM), Physica. C, Superconductivity, 235, 1994, pp. 1707-1708
Citations number
4
Categorie Soggetti
Physics, Applied
Journal title
Physica. C, Superconductivity → ACNP
ISSN journal
09214534
Volume
235
Year of publication
1994
Part
3
Pages
1707 - 1708
Database
ISI
SICI code
0921-4534(1994)235:<1707:CELI((>2.0.ZU;2-#
Abstract
We have studied the temperature dependence of crystal field (CF) excit ation linewidths of lanthanide ions (Er and Ho) in YBa(2)Cu(3)0(7) by neutron scattering. The Ho data reveal an anomaly in the CF damping ar ound T-c with no evidence of a coherence peak below T-c. We have appli ed the theory of Becker, Fulde and Keller to derive the reduced s-f co upling constants from the CF linewidth data for the ions Er, Ho and Tm .