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Polaron Dynamics and Bipolarons in Cuprates

✍ Scribed by A. S. Alexandrov


Book ID
111561607
Publisher
Springer
Year
2000
Tongue
English
Weight
58 KB
Volume
13
Category
Article
ISSN
0896-1107

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Polaron formation in cuprates
✍ O. Gunnarsson; G. Sangiovanni; O. RΓΆsch; E. Koch; C. Castellani; M. Capone πŸ“‚ Article πŸ“… 2007 πŸ› Elsevier Science 🌐 English βš– 201 KB

We calculate the electron-phonon coupling for La 2 CuO 4 , and show that it is strong enough to lead to small polarons, as seen experimentally. The calculated line shapes are in reasonable agreement with experiment. Deriving sum rules, we show that for a weakly doped system, the Coulomb interaction