Pregled bibliografske jedinice broj: 927743
Nonlinear Phonons and High Temperature Superconductivity
Nonlinear Phonons and High Temperature Superconductivity // Bulletin of Americal Physical Society
Anaheim (CA), Sjedinjene Američke Države: American Physical Society, 1990. str. 676-676 (predavanje, nije recenziran, sažetak, znanstveni)
CROSBI ID: 927743 Za ispravke kontaktirajte CROSBI podršku putem web obrasca
Naslov
Nonlinear Phonons and High Temperature Superconductivity
Autori
Batistić, I. ; Bishop, A.R.
Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni
Izvornik
Bulletin of Americal Physical Society
/ - : American Physical Society, 1990, 676-676
Skup
APS March meeting
Mjesto i datum
Anaheim (CA), Sjedinjene Američke Države, 12.03.1990. - 16.03.1990
Vrsta sudjelovanja
Predavanje
Vrsta recenzije
Nije recenziran
Ključne riječi
Superconductivity, nonlinear phonons, Eliashberg formalism
Sažetak
We discuss the role of nonlinear phonons in the Eliashberg formalism. This consideration is suggested in HTC layered materials: for example, in YBa_2Cu_3O_{;7-delta}; the nonlinearity may be induced by O(4) c-axis dynamics, which is highly anharmonic according to recent EXAFS measurements. This leads to a dynamic Jahn-Teller-like mechanism augmenting any purely in-plane mechanisms. We use a double well nonlinearity to show that T_c can be substantially raised by the anharmonicity but only in intermediate anharmonicity regimes.
Izvorni jezik
Engleski
Znanstvena područja
Fizika
