Coupling strength in superconducting fullerenes

Journal Article · Mon Nov 30 23:00:00 EST 1992 · Physical Review, B: Condensed Matter; (United States)

DOI:https://doi.org/10.1103/PhysRevB.46.14883· OSTI ID:6998521

Kresin, V Z ^[1]

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1. Lawrence Berkeley Laboratory, University of California, Berkeley, California 94720 (United States)

The coupling strength [lambda] and the characteristic phonon frequency [l angle][Omega][sup 2][r angle][sup 1/2] in superconducting fullerenes can be determined based on general expressions for [ital T][sub [ital c]] and on the isotope effect and NMR experimental data. An analysis of recent data shows that the superconducting state of doped fullerenes [ital A][sub 3]C[sub 60] is caused by strong electron-vibrational coupling with [lambda][sub 1]=2.1 for [ital A]=Rb and [lambda][sub 2]=1.5 for [ital A]=K, and [l angle][Omega][sup 2][r angle][sup 1/2][congruent]250 cm[sup [minus]1].

• OSTI ID: 6998521
• Journal Information: Physical Review, B: Condensed Matter; (United States), Journal Name: Physical Review, B: Condensed Matter; (United States) Vol. 46:22; ISSN PRBMDO; ISSN 0163-1829
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360607* -- Other Materials-- Superconducting Properties-- (1992-)
ALKALI METAL COMPOUNDS
CARBON
COUPLING
DATA
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELECTRON-PHONON COUPLING
ELEMENTS
EXPERIMENTAL DATA
FULLERENES
INFORMATION
ISOTOPE EFFECTS
MAGNETIC RESONANCE
NONMETALS
NUCLEAR MAGNETIC RESONANCE
NUMERICAL DATA
PHYSICAL PROPERTIES
POTASSIUM COMPOUNDS
RESONANCE
RUBIDIUM COMPOUNDS
SUPERCONDUCTIVITY