"Comb-Like" Polarons and Bipolarons in High-T_{c} Materials

• Authors: E. Hankiewicz , R. Buczko , Z. Wilamowski
• Languages of publication: EN

Abstracts

EN

Diagonalization of Hamiltonian composed from d-d exchange interactions between localized d spins of antiferromagnetic cluster and p-d interaction with the spin of carriers indicates a possibility of formation of pure magnetic polarons. The most energetically favorable solution occurs when the carrier density in CuO_{2} planes is distributed on every second spin. These "comb-like" polarons have a tendency to bind into pairs (bipolarons) "glued" by the antiferromagnetic medium.

Keywords

EN

74.20.-z; 75.10.-b; 74.20.Mn

Discipline

• 74.20.-z: Theories and models of superconducting state
• 74.20.Mn: Nonconventional mechanisms
• 75.10.-b: General theory and models of magnetic ordering(see also 05.50.+q Lattice theory and statistics)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2000
• Volume: 97
• Issue: 1
• Pages: 185-188

Dates

published

2000-01

Contributors

author

E. Hankiewicz

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

author

R. Buczko

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

author

Z. Wilamowski

• Institute of Physics, Polish Academy of Sciences, Al. Lotników 32/46, 02-668 Warszawa, Poland

Identifiers

DOI

10.12693/APhysPolA.97.185