Saw attenuation in C-60 thin films at transition temperature

Authors
Takase, T Sun, Y Miyasato, T
Citation
T. Takase et al., Saw attenuation in C-60 thin films at transition temperature, PHYSICA B, 263, 1999, pp. 766-768
Citations number
8
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICA B
ISSN journal
09214526 → ACNP
Volume
263
Year of publication
1999
Pages
766 - 768
Database
ISI
SICI code
0921-4526(199903)263:<766:SAICTF>2.0.ZU;2-O
Abstract
Surface acoustic wave (SAW) attenuation of microcrystalline C-60 film prepa red by vacuum evaporation is measured in the temperature range 150-300 K. A strong attenuation is observed near the temperature of the fee-sc transiti on, at about 260 K. The attenuation may be related to a thermal activated r elaxation mechanism having an activation energy of about 68 meV. No thermal hysteresis in the attenuation is observed in the temperature range. (C) 19 99 Elsevier Science B.V. All rights reserved.