Title: Ordering phenomena in cuprates
Authors : Hackl, Rudi
Tassini, Leonardo
Venturini, Francesca
Hartinger, Christine
Erb, Andreas
Kikugawa, Naoki
Fujita, Toshitsu
Published in : Advances in Solid State Physics
Volume(Issue) : 45
Pages : 227
Pages to: 238
Editors of the parent work: Kramer, Bernhard
Publisher / Ed. Institution : Springer
Publisher / Ed. Institution: Heidelberg
Issue Date: 2005
License (according to publishing contract) : Licence according to publishing contract
Series : Advances in Solid State Physics
Series volume: 45
Type of review: Peer review (Publication)
Language : English
Subjects : Superconductors; Raman spectroscopy; Cuprates
Subject (DDC) : 530: Physics
Abstract: Results of light-scattering experiments in Bi2Sr2CaCu2O8+δ (Bi-2212), La2–xSrxCuO4 (LSCO), and YBa2Cu3O6+x (Y-123) single crystals are presented. The emphasis is placed on the low doping range where the evolution of the metallic state from the antiferromagnetic one is studied. Along the diagonals of the CuO2 planes the response is metallic even at small doping levels well below p = 0.05 where superconductivity disappears. In contrast, along the principal axes the carriers exhibit insulator-like characteristics up to approximately p=0.21. In the underdoped range charge-ordering fluctuations are observed manifesting themselves as quasielastic peaks at low temperatures. The symmetries at which the new response is found are compatible with the neutron results on the spin system. Possible connections between the localization phenomena, the pseudogap and the charge and spin-ordering instabilities as well as the implications for superconductivity are discussed.
Departement: School of Engineering
Organisational Unit: Institute of Applied Mathematics and Physics (IAMP)
Publication type: Book Part
DOI : 10.1007/11423256_18
ISBN: 978-3-540-26041-7
978-3-540-32430-0
URI: https://digitalcollection.zhaw.ch/handle/11475/6205
Appears in Collections:Publikationen School of Engineering

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