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Reversible nano-scale phase separation of Rb4C60 under pressure
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
Umeå University, Faculty of Science and Technology, Department of Physics.
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2010 (English)In: Journal of physics: conference series: proceedings of the International Conference on High Pressure Science and Technology, Joint AIRAPT-22 & HPCJ-50, 26–31 July 2009, Tokyo, Japan / [ed] K. Takemura, editor in chief, Bristol: Institute of Physics (IOP), 2010, Vol. 215:1, 012020- p.Conference paper, Published paper (Refereed)
Abstract [en]

The alkali fulleride Rb4C60 has been investigated by studies of the resistance and by Raman spectroscopy under pressures up to 2 GPa and 13 GPa, respectively. Our data show a reversible phase separation into metallic Rb3C60 and Rb6C60 at pressures above 1 GPa. The reversibility indicates that the phase separation primarily occurs on the nanometer length scale. The data explain several puzzling results reported in the recent literature.

Place, publisher, year, edition, pages
Bristol: Institute of Physics (IOP), 2010. Vol. 215:1, 012020- p.
Series
Journal of Physics Conference Series, ISSN 1742-6596 ; 215
Keyword [en]
Fullerenes, fullerides, C60, alkali metal intercalation, Rb4C60, resistance, Raman spectroscopy, phase separation, high pressure, low temperature, structural stability, disproportionation, reversibility, nanostructure
National Category
Condensed Matter Physics
Research subject
Physics
Identifiers
URN: urn:nbn:se:umu:diva-33606DOI: 10.1088/1742-6596/215/1/012020ISI: 000292385100020OAI: oai:DiVA.org:umu-33606DiVA: diva2:315359
Conference
Joint AIRAPT-22 and HPCJ-50 Conference/International Conference on High Pressure Science and Technology, 26–31 July 2009, Tokyo, Japan
Note

OPEN ACCESS. Editor in Chief: Kenichi Takemura. Editorial Board: Tadashi Kondo, Hitoshi Matsuki, Nobuyuki Matubayasi, Yoshihisa Mori, Osamu Ohtaka, Chihiro Sekine

Available from: 2010-04-29 Created: 2010-04-29 Last updated: 2015-09-28Bibliographically approved

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