Field-induced diffusion of gold and related phase transformations in the C{sub 60} and C{sub 70} fullerenes

Journal Article · Tue Jun 01 04:00:00 EDT 1999 · Physical Review, B: Condensed Matter

DOI:https://doi.org/10.1103/PhysRevB.59.16028· OSTI ID:351876

Firlej, L ^[1]; Kirova, N ^[2]; Zahab, A ^[1]

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1. Groupe de Dynamique des Phases Condensees, Universite Montpellier II, Pl. E. Bataillon, 34095 Montpellier Cedex 05 (France)
2. Department of Physics, Brookhaven National Laboratory, Upton, New York 11973-5000 (United States)

The intercalation of metal {ital M} (M=Au, Ag, In) from the electrode into the polycrystalline C{sub 60} and C{sub 70} thin films is studied by time-dependent and space-resolved conductivity measurements under controlled oxygen-free atmosphere at different temperatures and electric fields. The time resistivity behavior is interpreted on the basis of electric-field-induced diffusion of metal ions from the electrodes to the interstitials of the fullerene crystal lattice and local formation of M{sub x}C{sub 60} and M{sub x}C{sub 70} phases. A comparison between the resistivity behaviors of C{sub 60} and C{sub 70} thin films provides evidence that the process is sensitive to the electronic level structure of the fullerenes molecules. {copyright} {ital 1999} {ital The American Physical Society}

• OSTI ID: 351876
• Journal Information: Physical Review, B: Condensed Matter, Journal Name: Physical Review, B: Condensed Matter Journal Issue: 24 Vol. 59; ISSN 0163-1829; ISSN PRBMDO
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
DIFFUSION
ELECTRIC CONDUCTIVITY
ELECTRONIC STRUCTURE
FULLERENES
GOLD COMPOUNDS
INDIUM COMPOUNDS
OXYGEN
PHASE TRANSFORMATIONS
SILVER COMPOUNDS
TEMPERATURE DEPENDENCE
THIN FILMS