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Renormalization of phonon frequencies by conduction electrons in layer systems with application to YBa2Cu3O7

✍ Scribed by G. Hastreiter; D. Strauch; J. Keller; B. Schmid; U. Schröder

Book ID
112516297
Publisher
Springer
Year
1992
Tongue
English
Weight
968 KB
Volume
89
Category
Article
ISSN
1434-6036

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Interaction of axial infrared-active pho
Interaction of axial infrared-active phonons with electronic excitations and phonon-mediated charge transfer in YBa2Cu3O7−x
✍ V.M. Burlakov; K.F. Renk; A. Gaymann; J. Münzel; H.P. Geserich 📂 Article 📅 1994 🏛 Elsevier Science 🌐 English ⚖ 589 KB

We report on an infrared study of the resonance interaction between phonons and electronic excitations in an YBa2Cu307 single crystal. Our results show that two transverse axial phonon modes (to= 300 cm-t and to-~ 550 cm -1 ) are strongly coupled to the c-polarized electronic continuum resulting in