PHONON-SPECTRUM OF BI-2223 FOR DIFFERENT CARRIER CONCENTRATIONS

Authors
SVISTUNOV VM TARENKOV VY DYACHENKO AI AOKI R
Citation
Vm. Svistunov et al., PHONON-SPECTRUM OF BI-2223 FOR DIFFERENT CARRIER CONCENTRATIONS, Low temperature physics (Woodbury, N.Y.), 24(7), 1998, pp. 507-509
Citations number
20
Categorie Soggetti
Physics, Applied
Journal title
Low temperature physics (Woodbury, N.Y.) → ACNP
ISSN journal
1063777X
Volume
24
Issue
7
Year of publication
1998
Pages
507 - 509
Database
ISI
SICI code
1063-777X(1998)24:7<507:POBFDC>2.0.ZU;2-8
Abstract
Tunneling experiments with Bi2223 reveal that a decrease in the carrie r concentration shifts the boundary frequency omega(0) of the cuprate phonon spectrum towards higher frequencies from omega(0) = 98 mV (T-c = 113 K) to omega(0) = 106 mV (T-c = 107 K) with an insignificant supp ression of the energy gap parameter Delta. (C) 1998 American Institute of Physics. [S1063-777X(98)01007-X].