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A study of temperature and pressure induced structural and electronic changes in SbCl5 intercalated graphite: Part II. Experimental data for c-axis resistivity
Umeå University, Faculty of Science and Technology, Physics.
Umeå University, Faculty of Science and Technology, Physics.
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1992 (English)In: Journal of Materials Research, ISSN 0884-2914, Vol. 7, no 11, 2989-3000 p.Article in journal (Refereed) Published
Abstract [en]

We present experimental data for the c-axis resistivity ?c of stage s = 2, 3, 4, 5, and 8, SbCl5 intercalated graphite, over the temperature range 40 to 300 K and the pressure range 0 to 0.8 GPa (0–8 kbar). For most specimens studied, resistance anomalies are observed below 230 K at atmospheric pressure and at pressures up to 0.5 GPa at 293 K. These anomalies are explained in terms of structural changes from a disordered or partly crystallized in-plane intercalate structure at atmospheric pressure and T > 230 K to an almost completely crystallized structure below this temperature, or at elevated pressures, as discussed in a companion paper. In the crystallized phases ?c is approximately linear in T except for stage 8, for which a nonlinear behavior, with a negative temperature coefficient of resistivity below 200 K, is observed. The results are compared with previously available literature data, and the p-T phase diagram is briefly discussed.

Place, publisher, year, edition, pages
1992. Vol. 7, no 11, 2989-3000 p.
Keyword [en]
Graphite intercalation compounds, GIC, SbCl5, high pressure, structure, phase transition, electrical resistance, c-axis resistivity
National Category
Condensed Matter Physics
Research subject
URN: urn:nbn:se:umu:diva-26568DOI: 10.1557/JMR.1992.2989OAI: diva2:272562
Available from: 2009-10-15 Created: 2009-10-15 Last updated: 2010-02-02

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