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C-axis resistance of HgCl2 intercalated graphite as a function of temperature and pressure
Umeå University, Faculty of Science and Technology, Physics.
Umeå University, Faculty of Science and Technology, Physics.
1989 (English)In: Synthetic Metals volume 34: Proceedings of the Fifth International Symposium on Intercalated Graphite, Berlin (West) 1989, Lausanne: Elsevier Sequoia SA , 1989, 485-490 p.Conference paper (Refereed)
Abstract [en]

The c-axis resistance of stage 3 HgCl2 intercalated graphite has been measured as a function of temperature T and pressure p in the range 40 to 300 K and up to 1 GPa (10 kbar). The absolute resistivity and its T- and p- dependence are all in good agreement with data for other acceptor compounds. The measurements show that a previosly unknown phase transformation occurs above 0.4 GPa. Below 250 K the high pressure phase is metastable down to zero pressure, and an x-ray diffraction analysis of metastable material shows that no stage change occurs. The transition thus probably leads to a different in-plane structure characterized by a more densely packed intercalate layer.

Place, publisher, year, edition, pages
Lausanne: Elsevier Sequoia SA , 1989. 485-490 p.
, Synthetic Metals, ISSN 0379-6779 ; Volume 34
Keyword [en]
Graphite intercalation compounds, GIC, HgCl2, resistance, high pressure, c-axis resistance, anisotropy, phase transformation, order-disorder transformation
National Category
Condensed Matter Physics
Research subject
URN: urn:nbn:se:umu:diva-26741DOI: 10.1016/0379-6779(89)90429-3OAI: diva2:273690
Editors: K. Lüders and R. SchöllhornAvailable from: 2009-10-23 Created: 2009-10-23 Last updated: 2010-02-03

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