SPIN-FLUCTUATION AND CHARGE-FLUCTUATION EFFECTS ON DYNAMIC CONDUCTIVITY IN CU-O PLANE SUPERCONDUCTORS

Dahm T, WERMBTER S, TEWORDT L (1992)
Journal of Low Temperature Physics 88(1-2): 41-53.

Zeitschriftenaufsatz | Veröffentlicht | Englisch
 
Download
Es wurden keine Dateien hochgeladen. Nur Publikationsnachweis!
Autor*in
Dahm, ThomasUniBi; WERMBTER, S; TEWORDT, L
Abstract / Bemerkung
A self-consistent microscopic theory for the 2D Hubbard Hamiltonian and additional electron-phonon interaction yields below T(c) a gap in the quasiparticle decay rate as well as in the spin and charge fluctuation spectra. The mass enhancement and the quasiparticle decay rate exhibit in the normal state "marginal" Fermi liquid behavior while in the superconducting state the quasiparticle character is restored. These properties lead to anomalous behavior of the dynamic conductivity: considered as a function of temperature a peak evolves at T(c) as the frequency is decreased well below 2-DELTA. In the optical conductivity, considered as a function of frequency, a gap between 2-DELTA and 4-DELTA opens rapidly as T is decreased below, T(c). Our results are in qualitative agreement with experiments on high-T(c) superconductors.
Erscheinungsjahr
1992
Zeitschriftentitel
Journal of Low Temperature Physics
Band
88
Ausgabe
1-2
Seite(n)
41-53
ISSN
0022-2291
eISSN
1573-7357
Page URI
https://pub.uni-bielefeld.de/record/2330458

Zitieren

Dahm T, WERMBTER S, TEWORDT L. SPIN-FLUCTUATION AND CHARGE-FLUCTUATION EFFECTS ON DYNAMIC CONDUCTIVITY IN CU-O PLANE SUPERCONDUCTORS. Journal of Low Temperature Physics. 1992;88(1-2):41-53.
Dahm, T., WERMBTER, S., & TEWORDT, L. (1992). SPIN-FLUCTUATION AND CHARGE-FLUCTUATION EFFECTS ON DYNAMIC CONDUCTIVITY IN CU-O PLANE SUPERCONDUCTORS. Journal of Low Temperature Physics, 88(1-2), 41-53. doi:10.1007/BF00122557
Dahm, T., WERMBTER, S., and TEWORDT, L. (1992). SPIN-FLUCTUATION AND CHARGE-FLUCTUATION EFFECTS ON DYNAMIC CONDUCTIVITY IN CU-O PLANE SUPERCONDUCTORS. Journal of Low Temperature Physics 88, 41-53.
Dahm, T., WERMBTER, S., & TEWORDT, L., 1992. SPIN-FLUCTUATION AND CHARGE-FLUCTUATION EFFECTS ON DYNAMIC CONDUCTIVITY IN CU-O PLANE SUPERCONDUCTORS. Journal of Low Temperature Physics, 88(1-2), p 41-53.
T. Dahm, S. WERMBTER, and L. TEWORDT, “SPIN-FLUCTUATION AND CHARGE-FLUCTUATION EFFECTS ON DYNAMIC CONDUCTIVITY IN CU-O PLANE SUPERCONDUCTORS”, Journal of Low Temperature Physics, vol. 88, 1992, pp. 41-53.
Dahm, T., WERMBTER, S., TEWORDT, L.: SPIN-FLUCTUATION AND CHARGE-FLUCTUATION EFFECTS ON DYNAMIC CONDUCTIVITY IN CU-O PLANE SUPERCONDUCTORS. Journal of Low Temperature Physics. 88, 41-53 (1992).
Dahm, Thomas, WERMBTER, S, and TEWORDT, L. “SPIN-FLUCTUATION AND CHARGE-FLUCTUATION EFFECTS ON DYNAMIC CONDUCTIVITY IN CU-O PLANE SUPERCONDUCTORS”. Journal of Low Temperature Physics 88.1-2 (1992): 41-53.