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Infrared spectroscopy on Y1− xRExBa2Cu3− yZnyO6(RE  Pr, Gd,x= 0 and 0.8;y= 0 and ≈ 0.15)

Authors
Journal
Physica B Condensed Matter
0921-4526
Publisher
Elsevier
Publication Date
Volume
244
Identifiers
DOI: 10.1016/s0921-4526(97)00462-6
Keywords
  • Chapter 1. Superconductivity
Disciplines
  • Physics

Abstract

Abstract Far- and mid-infrared properties of antiferromagnetic Y 1− x RE x Ba 2Cu 3− y Zn y O 6 (RE  Pr, Gd, x = 0 and y = 0 and ≈ 0.15) were investigated by infrared reflection and transmission measurements ( κ∥ c-axis). All six phonon modes of E u symmetry and several multi-phonon bands were observed. Zn substitution causes phonon side bands and a surprising temperature dependence of multi-phonon bands, possibly due to spin-lattice interactions. All compounds show several features in the mid-infrared range that might be related to bimagnon-plus-phonon absorption.

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