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 language | English |
|---|---|
| Title of host publication | Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017 |
| Editors | Sergey G. Psakhie, Victor E. Panin, Vasily M. Fomin |
| Publisher | American Institute of Physics Inc. |
| ISBN (Electronic) | 9780735416017 |
| DOIs | |
| Publication status | Published - 1 Dec 2017 |
| Event | International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017 - Tomsk, Russian Federation Duration: 9 Oct 2017 → 13 Oct 2017 |
Publication series
| Name | AIP Conference Proceedings |
|---|---|
| Volume | 1909 |
| ISSN (Print) | 0094-243X |
| ISSN (Electronic) | 1551-7616 |
Conference
| Conference | International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017 |
|---|---|
| Country | Russian Federation |
| City | Tomsk |
| Period | 9.10.17 → 13.10.17 |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
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 proceeding › Conference contribution
}
TY - GEN
T1 - Low temperature features of sound velocity in fullerite C60 orientational glasses
AU - Barabashko, M. S.
AU - Ponomarev, A. N.
AU - Rezvanova, A. E.
PY - 2017/12/1
Y1 - 2017/12/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85038595766&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85038595766&partnerID=8YFLogxK
U2 - 10.1063/1.5013691
DO - 10.1063/1.5013691
M3 - Conference contribution
T3 - AIP Conference Proceedings
BT - Proceedings of the International Conference on Advanced Materials with Hierarchical Structure for New Technologies and Reliable Structures 2017, AMHS 2017
A2 - Psakhie, Sergey G.
A2 - Panin, Victor E.
A2 - Fomin, Vasily M.
PB - American Institute of Physics Inc.
ER -