Electron-phonon Interactions in HTSC Cuprates

Journal Article · Tue Jan 01 04:00:00 EST 2002 · Physica B: Condensed Matter

DOI:https://doi.org/10.1016/S0921-4526(02)00426-X· OSTI ID:1003491

Egami, T. ^[1]; Chung, J. -H. ^[2]; McQueeny, R. J. ^[3]; Yethiraj, Mohana ^[4]; Mook, Jr, Herbert A ^[4]; Frost, C. ^[5]; Petrov, Y. ^[1]; Dogan, F. ^[6]; Inamura, Y. ^[7]; Arai, M. ^[7]; Tajima, S. ^[8]; Endoh, Y. ^[9]

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1. University of Pennsylvania
2. National Institute of Standards and Technology (NIST)
3. Ames Laboratory
4. ORNL
5. ISIS Facility, Rutherford Appleton Laboratory
6. University of Washington, Seattle
7. Institute of Materials Structure Science, Japan
8. Superconductivity Research Laboratory, Japan
9. Tohoku University, Japan

Phonons have been generally considered to be irrelevant to the high-temperature superconductivity in the cuprates. However, such a bias is usually based upon the assumption of conventional electron-phonon coupling, while in the cuprates the coupling can be rather unconventional because of strong electron correlation. We present the results of our recent measurements of phonon dispersion in YBa{sub 2}Cu{sub 3}O{sub 6+x} by inelastic neutron scattering. These suggest certain phonon modes interact strongly with electrons and are closely involved in the superconductivity phenomenon with possible contribution to pairing.

• Research Organization: Oak Ridge National Laboratory (ORNL); High Flux Isotope Reactor
• Sponsoring Organization: SC USDOE - Office of Science (SC)
• DOE Contract Number: AC05-00OR22725
• OSTI ID: 1003491
• Journal Information: Physica B: Condensed Matter, Journal Name: Physica B: Condensed Matter Journal Issue: 1 Vol. 316-317; ISSN 0921-4526
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CUPRATES
ELECTRON CORRELATION
ELECTRONS
NEUTRONS
PHONONS
SCATTERING
SUPERCONDUCTIVITY