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Orientational disorder and the p-T phase diagram of fullerenes
Umeå universitet, Teknisk-naturvetenskaplig fakultet, Fysik.
Umeå universitet, Teknisk-naturvetenskaplig fakultet, Fysik.
Umeå universitet, Teknisk-naturvetenskaplig fakultet, Fysik.
Umeå universitet, Teknisk-naturvetenskaplig fakultet, Fysik.
Visa övriga samt affilieringar
1995 (Engelska)Ingår i: Fullerenes: Recent Advances in the Chemistry and Physics of Fullerenes and Related Materials, volume 2: Proceedings of the 187th ECS Meeting, Symposium Fullerenes: Chemistry, Physics, and New Directions VII, Reno 1995, Pennington, NJ: The Electrochemical Society , 1995, s. 891-905Konferensbidrag, Publicerat paper (Refereegranskat)
Abstract [en]

The translational and orientational structures of fullerenes are very sensitive to pressure, p, because of the weak intermolecular potentials. We have recently carried out high-p studies of the thermal conductivity lambda and the bulk modulus B of C60 and C70, and we show here how the p-T phase diagrams of these materials can be mapped from data for B and lambda and a knowledge of the structures at zero pressure. We discuss how B and lambda are modified by translational, rotational and orientational disorder in the materials, mainly showing examples related to the orientational substructure and its evolution with T and p in C60. We also discuss briefly the structures and phase diagrams of C70 and C61H2, and we show preliminary experimental results suggesting that the structure of high-p, high-T treated C60 is probably not polymeric as recently suggested by several groups.

Ort, förlag, år, upplaga, sidor
Pennington, NJ: The Electrochemical Society , 1995. s. 891-905
Serie
Electrochemical Society Proceedings ; PV 95-10
Nyckelord [en]
Fullerenes, C60, C70, C61H2, high pressure, orientational structure, phase diagrams, thermal conductivity, bulk modulus, compressibility
Nationell ämneskategori
Den kondenserade materiens fysik
Forskningsämne
fysik
Identifikatorer
URN: urn:nbn:se:umu:diva-26176ISBN: 1-56677-104-8 (tryckt)OAI: oai:DiVA.org:umu-26176DiVA, id: diva2:240642
Anmärkning
Invited paper; editors Rodney S. Ruoff and Karl M. Kadish.Tillgänglig från: 2009-09-29 Skapad: 2009-09-29 Senast uppdaterad: 2018-06-08

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Sundqvist, BertilAndersson, OveLundin, AndersPersson, Per-Axel

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