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Title: Rotation dynamics of C{sub 60} molecules in a monolayer fullerene film on the WO{sub 2}/W(110) surface near the rotational phase transition

The rotation dynamics of C{sub 60} molecules in monolayer fullerene films grown on the WO{sub 2}/W(110) surface is studied by scanning tunneling microscopy. The formation of molecule clusters, which have a high libron vibration amplitude, is detected near the rotational phase transition temperature. The energy parameters that determine a change in the molecule orientation, namely, the energy difference between the nearest minima of the C{sub 60} molecule energy (30 meV) as a function of the molecule orientation and the potential barrier between them (610 meV), are determined. The results are discussed in terms of the mean-field approximation.
Authors:
 [1] ;  [2] ;  [1] ;  [3] ;  [4]
  1. Russian Academy of Sciences, Institute of Solid State Physics (Russian Federation)
  2. Astrakhan’ State University (Russian Federation)
  3. State Scientific-Research and Design Institute of Rare-Metal Industry (Russian Federation)
  4. Trinity College Dublin, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), School of Physics (Ireland)
Publication Date:
OSTI Identifier:
22472261
Resource Type:
Journal Article
Resource Relation:
Journal Name: Journal of Experimental and Theoretical Physics; Journal Volume: 120; Journal Issue: 5; Other Information: Copyright (c) 2015 Pleiades Publishing, Inc.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; CRYSTAL STRUCTURE; FILMS; FULLERENES; MEAN-FIELD THEORY; MEV RANGE; MOLECULES; ORIENTATION; PHASE TRANSFORMATIONS; POTENTIALS; ROTATION; SCANNING TUNNELING MICROSCOPY; SURFACES; TRANSITION TEMPERATURE; TUNGSTEN; TUNGSTEN OXIDES