Low temperature features of sound velocity in fullerite C60 orientational glasses

M. S. Barabashko, A. N. Ponomarev, A. E. Rezvanova

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The nature of the linear term in the heat capacity in fullerite C60 was studied. The low-temperature dependence of the sound velocity was determined from the data of the heat capacity at temperatures below 10 K. A model of the dynamic configuration excitations (DCE) was proposed to describe the contribution to the heat capacity of the linear term in heat capacity and calculation of the dependence of sound velocity. It was shown that the model adequately described the dynamics of the cluster formations of the short-range order in fullerite C60 because it took into account the excitations of both the atomic and electronic subsystems. In the framework of this model, it was shown that the low-energy tunnel states that were located at the boundaries of C60 domains made a dominant contribution to low-temperature effects in the heat capacity and sound velocity of C60.

Original languageEnglish
Title of host publicationProceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017
EditorsSergey G. Psakhie, Victor E. Panin, Vasily M. Fomin
PublisherAmerican Institute of Physics Inc.
ISBN (Electronic)9780735416017
DOIs
Publication statusPublished - 1 Dec 2017
EventInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017 - Tomsk, Russian Federation
Duration: 9 Oct 201713 Oct 2017

Publication series

NameAIP Conference Proceedings
Volume1909
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017
CountryRussian Federation
CityTomsk
Period9.10.1713.10.17

Fingerprint

acoustic velocity
specific heat
glass
excitation
temperature effects
tunnels
temperature dependence
configurations
electronics
temperature
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Barabashko, M. S., Ponomarev, A. N., & Rezvanova, A. E. (2017). Low temperature features of sound velocity in fullerite C60 orientational glasses. In S. G. Psakhie, V. E. Panin, & V. M. Fomin (Eds.), Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017 [020010] (AIP Conference Proceedings; Vol. 1909). American Institute of Physics Inc.. https://doi.org/10.1063/1.5013691

Low temperature features of sound velocity in fullerite C60 orientational glasses. / Barabashko, M. S.; Ponomarev, A. N.; Rezvanova, A. E.

Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017. ed. / Sergey G. Psakhie; Victor E. Panin; Vasily M. Fomin. American Institute of Physics Inc., 2017. 020010 (AIP Conference Proceedings; Vol. 1909).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Barabashko, MS, Ponomarev, AN & Rezvanova, AE 2017, Low temperature features of sound velocity in fullerite C60 orientational glasses. in SG Psakhie, VE Panin & VM Fomin (eds), Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017., 020010, AIP Conference Proceedings, vol. 1909, American Institute of Physics Inc., International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017, Tomsk, Russian Federation, 9.10.17. https://doi.org/10.1063/1.5013691
Barabashko MS, Ponomarev AN, Rezvanova AE. Low temperature features of sound velocity in fullerite C60 orientational glasses. In Psakhie SG, Panin VE, Fomin VM, editors, Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017. American Institute of Physics Inc. 2017. 020010. (AIP Conference Proceedings). https://doi.org/10.1063/1.5013691
Barabashko, M. S. ; Ponomarev, A. N. ; Rezvanova, A. E. / Low temperature features of sound velocity in fullerite C60 orientational glasses. Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017. editor / Sergey G. Psakhie ; Victor E. Panin ; Vasily M. Fomin. American Institute of Physics Inc., 2017. (AIP Conference Proceedings).
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