On nonlinear electron-lattice interaction and anharmonicity in HTSC

✍ Scribed by Jürgen Schreiber; Peter Härtwich

• Publisher: Elsevier Science
• Year: 1990
• Tongue: English
• Weight: 298 KB
• Volume: 165-166
• Category: Article
• ISSN: 0921-4526
• DOI: 10.1016/s0921-4526(09)80125-7

✦ Synopsis

A model of electron-phonon coupling quadratic in the lattice displacements is applied to the Cu-O and Bi-O based superconductors. T e , the isotope effect and the renormalization of phonon frequencies are discussed.