prikaz prve stranice dokumenta Acoustic and thermal transport properties of hard carbon formed from C_60 fullerene
  Download
PDF 853.39 KB
Scientific paper - Original scientific paper
Acoustic and thermal transport properties of hard carbon formed from C_60 fullerene
Physical review B: Condensed matter and materials physics, 66 (2002), 1; 014302-11. https://doi.org/10.1103/PhysRevB.66.014302
Lasjaunias, J. C.; Saint-Paul, M.; Bilušić, A.; Smontara, Ana; Gradečak, S.; Tonejc, Anđelka; Tonejc, Antun; Kitamura, N.

Institutional repository: Repository of the Faculty of Science

Cite this document

Lasjaunias, J. C., Saint Paul, M., Bilušić, A., Smontara, A., Gradečak, S., Tonejc, A. ... Kitamura, N. (2002). Acoustic and thermal transport properties of hard carbon formed from C_60 fullerene. Physical review B: Condensed matter and materials physics, 66. (1), 014302-11. doi: 10.1103/PhysRevB.66.014302

Lasjaunias, J. C., et al. "Acoustic and thermal transport properties of hard carbon formed from C_60 fullerene." Physical review B: Condensed matter and materials physics, vol. 66, no. 1, 2002, pp. 014302-11. https://doi.org/10.1103/PhysRevB.66.014302

Lasjaunias, J. C., M. Saint Paul, A. Bilušić, Ana Smontara, S. Gradečak, Anđelka Tonejc, Antun Tonejc and N. Kitamura. "Acoustic and thermal transport properties of hard carbon formed from C_60 fullerene." Physical review B: Condensed matter and materials physics 66, no. 1 (2002): 014302-11. https://doi.org/10.1103/PhysRevB.66.014302

Lasjaunias, J. C., et al. (2002) 'Acoustic and thermal transport properties of hard carbon formed from C_60 fullerene', Physical review B: Condensed matter and materials physics, 66(1), pp. 014302-11. doi: 10.1103/PhysRevB.66.014302

Lasjaunias JC, Saint Paul M, Bilušić A, Smontara A, Gradečak S, Tonejc A, and sur.. Acoustic and thermal transport properties of hard carbon formed from C_60 fullerene. Physical review B: Condensed matter and materials physics [Internet]. 2002 [cited 2024 November 20];66(1):014302-11. doi: 10.1103/PhysRevB.66.014302

J. C. Lasjaunias, et al., "Acoustic and thermal transport properties of hard carbon formed from C_60 fullerene", Physical review B: Condensed matter and materials physics, vol. 66, no. 1, pp. 014302-11, 2002. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:466395. [Accessed: 20 November 2024]

Metadata
Title (english)Acoustic and thermal transport properties of hard carbon formed from C_60 fullerene
AuthorJ. C. Lasjaunias
AuthorM. Saint-Paul
AuthorA. Bilušić
AuthorAna Smontara
AuthorS. Gradečak
AuthorAnđelka Tonejc
AuthorAntun Tonejc
AuthorN. Kitamura
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
We report on extended investigation of the thermal transport and acoustical properties on hard carbon samples obtained by pressurization of C60 fullerene. Structural investigations performed by different techniques on the same samples indicate a very inhomogeneous structure at different scales, based on fractal-like amorphous clusters on the micrometer to submillimeter scale, which act as strong acoustic scatterers, and scarce microcrystallites on the nanometer scale. Ultrasonic experiments show a rapid increase in the attenuation with frequency, corresponding to a decrease in the localization length for vibrations. The data give evidence for a crossover from extended phonon excitations to localized fracton excitations. The thermal conductivity is characterized by a monotonous increase versus temperature, power law T1.4, for T ranging from 0.1 to 10 K, without any well-defined plateau, and a strictly linear-in-T variation between 20 and 300 K. The latter has to be related to the linear-in-T decrease of the sound velocity between 4 and 100 K, both linear regimes being characteristic of disordered or generally aperiodic structures, which can be analyzed by the “phonon-fracton hopping” model developed for fractal and amorphous structures.
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titlePhysical review B: Condensed matter and materials physics
Numberingvol. 66, no. 1, pp. 014302-11
p-ISSN1098-0121
e-ISSN1550-235X
DOIhttps://doi.org/10.1103/PhysRevB.66.014302
URN:NBNurn:nbn:hr:217:466395
Publication2002
Document URLhttp://link.aps.org/doi/10.1103/PhysRevB.66.014302
Type of resourceText
Access conditionsOpen access
Terms of useLicence In copyright icon
Public noteCopyright (2002) by the American Physical Society.
Created on2019-10-13 12:09:55