Published October 1998 | Version v1
Journal article Metadata-only

A new type of collective excitation in two condensate cuprates

Creators

  • 1. School of Physics, University of New South Wales, Sydney (Australia)

Description

We consider the implications of the two-pocket Fermi surface for macroscopic quantum phenomena in cuprates. Superconductivity in this system can be described in terms of two coupled condensates. It results in a collective excitation corresponding to the relative phase oscillation - a phason. The energy of the phason is smaller than the maximum gap on the Fermi surface. We discuss the possibility of searching for this collective excitation in the dynamic resistance of a superconducting interference device (SQUID). (author)

Availability note (English)

Available online at the Web site for the journal Superconductor Science and Technology (ISSN 1361-6668) http://www.iop/org/

Additional details

Identifiers

URL
http://www.iop/org/;

Publishing Information

Journal Title
Superconductor Science and Technology
Journal Volume
11
Journal Issue
10
Journal Page Range
p. 1190-1192
ISSN
0953-2048

Conference

Title
Symposium on processing and critical current of high-temperature superconductors
Dates
2-4 Feb 1998
Place
Wagga Wagga (Australia)

INIS

Country of Publication
United Kingdom
Country of Input or Organization
Uzbekistan
INIS RN
31059290
Subject category
S36: MATERIALS SCIENCE; S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
COLLECTIVE EXCITATIONS; CONDENSATES; CUPRATES; FERMI LEVEL; HIGH-TC SUPERCONDUCTORS; SQUID DEVICES; SUPERCONDUCTIVITY
Descriptors DEC
COPPER COMPOUNDS; ELECTRIC CONDUCTIVITY; ELECTRICAL PROPERTIES; ELECTRONIC EQUIPMENT; ENERGY LEVELS; ENERGY-LEVEL TRANSITIONS; EQUIPMENT; EXCITATION; FLUXMETERS; MEASURING INSTRUMENTS; MICROWAVE EQUIPMENT; OXYGEN COMPOUNDS; PHYSICAL PROPERTIES; SUPERCONDUCTING DEVICES; SUPERCONDUCTORS; TRANSITION ELEMENT COMPOUNDS; TYPE-II SUPERCONDUCTORS