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Infrared spectra of superconducting $La_{2-x}Sr_xCuO_4$ and $YBa_2Cu_3O_7-\delta$

Ganguly, P and Fernandes, JR and Rao, CNR (1987) Infrared spectra of superconducting $La_{2-x}Sr_xCuO_4$ and $YBa_2Cu_3O_7-\delta$. In: Phase Transitions, 10 (1-2). pp. 77-86.

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Abstract

Infrared spectra of $La_{2-x}Sr_xCuO_4$ and $YBa_2Cu_3O_7-\delta$ are discussed, specially with respect to the disappearance of the high-frequency (\sim 650 cm) band of the superconducting compositions at 300K. Some of the bands persist at 300K event though the materials are fairly conducting. $YBa_2Cu_3O_7-\delta$ does not show evidence in the far IR spectrum for the presence of an optical gap.

Item Type: Journal Article
Additional Information: Copyright belongs to Taylor and Francis.
Department/Centre: Division of Chemical Sciences > Solid State & Structural Chemistry Unit
Date Deposited: 03 Mar 2008
Last Modified: 27 Aug 2008 13:12
URI: http://eprints.iisc.ernet.in/id/eprint/13133

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