INFRARED-SPECTROSCOPY ON Y1-XREXBA2CU3-YZNYO6 (RE=PR, GD, X=0 AND 0.8, Y=0 AND APPROXIMATE-TO-0.15)

Authors
GRUNINGER M VANDERMAREL D GESERICH HP WOLF T ERB A KOPP T
Citation
M. Gruninger et al., INFRARED-SPECTROSCOPY ON Y1-XREXBA2CU3-YZNYO6 (RE=PR, GD, X=0 AND 0.8, Y=0 AND APPROXIMATE-TO-0.15), Physica. B, Condensed matter, 244, 1998, pp. 60-65
Citations number
21
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
244
Year of publication
1998
Pages
60 - 65
Database
ISI
SICI code
0921-4526(1998)244:<60:IOY(GX>2.0.ZU;2-O
Abstract
Far-and mid-infrared properties of antiferromagnetic Y1-xRExBa2Cu3-yZn yO6 (RE = Pr, Gd, x = 0 and 0.8; y = 0 and approximate to 0.15) were i nvestigated by infrared reflection and transmission measurements (k pa rallel to c-axis). All six phonon modes of E-u symmetry and several mu lti-phonon bands were observed. Zn substitution causes phonon side ban ds and a surprising temperature dependence of multi-phonon bands, poss ibly due to spin-lattice interactions. All compounds show several feat ures in the mid-infrared range that might be related to bimagnon-plus- phonon absorption. Published by Elsevier Science B.V.