6533b82afe1ef96bd128b658
RESEARCH PRODUCT
Phonon Softening and Electron-Phonon Interaction in YBa2Cu3O7−δ
R. FeileR. FeileH. AdrianR. LiU. WeimerC. Tomè-rosasubject
Materials scienceYield (engineering)Condensed matter physicsPhononmedia_common.quotation_subjectElectron phononYba2cu3o7 δCondensed Matter::Mesoscopic Systems and Quantum Hall EffectAsymmetrySymmetry (physics)Condensed Matter::Materials Sciencesymbols.namesakeCondensed Matter::SuperconductivitysymbolsCondensed Matter::Strongly Correlated ElectronsSofteningRaman scatteringmedia_commondescription
We report on the Raman scattering investigation of the 335 cm−1 phonon of Ag (pseudo-B1g) symmetry in thin YBa2Cu3O7−δfilms on various substrates. The experiments yield values for the phonon softening below Tc, which differ from sample to sample. We find a linear relation between the softening and the inverse asymmetry parameter of the phonon Fano-like lineshape, when these parameters, obtained from different samples, are compared with each other. In contrast to this, the onset temperatures for the softening are the same for these samples.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1993-01-01 |