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Proceedings Paper

Far Infrared Optical Properties Of High Tc Superconductors LnBa2Cu30X ( Ln = Y, Ho, Er, Sm, Gd, Dy, Eu, Pr )
Author(s): S. Onari; T. Hiroaki; A. Ono; S. Hidaka; T. Arai
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Paper Abstract

Systematic measurements of the far infrared reflection spectra of high Tc superconductors LnBa2Cu30x for various Ln as shown in the title were performed. Infrared reflection spectra of tetragonal LnBa2Cu10, exhibit Reststrahlen vibration at 640, 590, 530, 355 and 250 cm-1, common to these materials, and the spectra of the orthorhombic LnBa2Cu30x exhibit the characteristics of free carriers except PrBa2Cupx with weak phonon structures at 617, 570, 317 and 285 cm-1. PrBa2Cu3Ox is not a superconductor, and it has no characteristic broad band due to free carriers for all x in the range of 6 to 7.

Paper Details

Date Published: 18 November 1989
PDF: 2 pages
Proc. SPIE 1039, 13th Intl Conf on Infrared and Millimeter Waves, (18 November 1989); doi: 10.1117/12.978434
Show Author Affiliations
S. Onari, University of Tsukuba (Japan)
T. Hiroaki, University of Tsukuba (Japan)
A. Ono, University of Tsukuba (Japan)
S. Hidaka, University of Tsukuba (Japan)
T. Arai, University of Tsukuba (Japan)

Published in SPIE Proceedings Vol. 1039:
13th Intl Conf on Infrared and Millimeter Waves
Richard J. Temkin, Editor(s)

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