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- Suh, Yung Doug
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TEMPERATURE-DEPENDENT RAMAN-STUDY ON C-70 FILM - OBSERVATION OF A ROTATIONAL ORDERING TRANSITION
- Author(s)
- Shin, Eun-joo, Song, Ok-Keun, Kim, Dongho, Suh, Yung Doug, Yang, Sung Ik, Kim, Seong Keun
- Issued Date
- 1994-02
- Citation
- CHEMICAL PHYSICS LETTERS, v.218, no.1-2, pp.107 - 114
- Abstract
- An orientational ordering transition was observed near 260 K from a C-70 film in a temperature-dependent Raman study. The 1183 cm(-1) Raman band shows a rather dramatic change in both frequency and bandwidth over the range of 220-280 K. The low-frequency Raman band at 260 cm(-1) disappears, and at its expense, a new band emerges at 266 cm(-1) as the temperature is decreased. The relatively smooth transition in temperature is attributed to the stacking disorder in molecular packing and the nonuniform orientational conformation of C-70 solid.
- Publisher
- ELSEVIER SCIENCE BV
- ISSN
- 0009-2614
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