Study of pseudogap formation by B-2u phonon measurements of YBa2(Cu1-xZnx)(3)O6+y

Authors
Harashina, H Kodama, K Kanada, M Sato, M Kakurai, K Nishi, M
Citation
H. Harashina et al., Study of pseudogap formation by B-2u phonon measurements of YBa2(Cu1-xZnx)(3)O6+y, PHYSICA B, 284, 2000, pp. 667-668
Citations number
4
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
284
Year of publication
2000
Part
1
Pages
667 - 668
Database
ISI
SICI code
0921-4526(200007)284:<667:SOPFBB>2.0.ZU;2-4
Abstract
The B-2u phonon mode of YBa2Cu3O6+y. which is sensitive to the singlet-pair formation (or the pseudo-gap formation) has been studied by neutron inelas tic scattering. For the optimally hole-doped system, the observed change of the temperature (T) dependence of the phonon energy with a small amount of Zn substitution for Cu suggests that in contrast to the non-substituted sy stem the pseudo-gap formation begin to develop with decreasing T at a tempe rature much higher than T-c similar to the underdoped case. (C) 2000 Elsevi er Science B.V. All rights reserved.