Dewing, H L and Guttler, B and Przyslupski, P and Basu, Rajendra Nath (1994) Resonance effects in polarized near-infrared Raman-spectra of YBA2Cu3O7-delta. Physica B-Condensed Matter, 194 (2). pp. 1575-1576. ISSN 0921-4526

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Polarised near-infrared (1.1 eV) excited FT-Raman spectra of YBa2Cu3O7-delta have been measured for the first time. All the Raman active Ag phonon modes are observed, in agreement with the results of green (2.4 eV) excited Raman spectrometry. The calculated absolute scattering efficiencies of the phonons are different, however, due to changes in the influence of Raman resonance scattering. This provides an important tool with which to probe the electronic structure in this energy range. A comparison with theoretical predictions of the resonant Raman profiles using LDA calculations reveals significant deviations from the model.

Item Type: Article
Additional Information: 20th International Conference on Low Temperature Physics, EUGENE, OR, AUG 04-11, 1993
Subjects: Electronics
Depositing User: Bidhan Chaudhuri
Date Deposited: 07 Aug 2013 13:36
Last Modified: 20 Mar 2016 16:29

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