Abstract:
We have measured the specific heat at constant pressure, Cp, of three different samples of multiwall carbon nanotubes (MWNT). For all samples, Cp departs from a graphitic behavior at T < 120 K. Cp measurements show a temperature threshold from a linear regime for intermediate temperature to a higher-order power law for low temperatures. Moreover, it was found that this crossover only depends on the internal structure of the individual MWNT and not on the spatial order of the MWNT within a bundle. © 2009 IOP Publishing Ltd.
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Documento: |
Conferencia
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Título: | Effects of phonon dimensionality in the specific heat of multiwall carbon nanotubes at low temperatures |
Autor: | Jorge, G.A.; Bekeris, V.; Acha, C.; Escobar, M.M.; Goyanes, S.; Zilli, D.; Cukierman, A.L.; Candal, R.J. |
Filiación: | Laboratorio de Bajas Temperaturas, Departamento de Física, FCEyN-UBA, Ciudad Universitaria (1428), Buenos Aires, Argentina Laboratorio de Polímeros y Materiales Compuestos, Departamento de Física, FCEyN-UBA, Ciudad Universitaria (1428), Buenos Aires, Argentina Departamento de Química Inorgínica, Analítica y Química Física, FCEyN-UBA, Ciudad Universitaria (1428), Buenos Aires, Argentina PINMATE, Departamento de Industrias, FCEyN-UBA, Ciudad Universitaria (1428), Buenos Aires, Argentina Instituto de Fisicoquímica de Materiales, Ambiente y Energía, CONICET-UBA, Ciudad Universitaria (1428), Buenos Aires, Argentina
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Año: | 2009
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Volumen: | 167
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DOI: |
http://dx.doi.org/10.1088/1742-6596/167/1/012008 |
Título revista: | Journal of Physics: Conference Series
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Título revista abreviado: | J. Phys. Conf. Ser.
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ISSN: | 17426588
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PDF: | https://bibliotecadigital.exactas.uba.ar/download/paper/paper_17426588_v167_n_p_Jorge.pdf |
Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_17426588_v167_n_p_Jorge |
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Citas:
---------- APA ----------
Jorge, G.A., Bekeris, V., Acha, C., Escobar, M.M., Goyanes, S., Zilli, D., Cukierman, A.L.,..., Candal, R.J.
(2009)
. Effects of phonon dimensionality in the specific heat of multiwall carbon nanotubes at low temperatures. Journal of Physics: Conference Series, 167.
http://dx.doi.org/10.1088/1742-6596/167/1/012008---------- CHICAGO ----------
Jorge, G.A., Bekeris, V., Acha, C., Escobar, M.M., Goyanes, S., Zilli, D., et al.
"Effects of phonon dimensionality in the specific heat of multiwall carbon nanotubes at low temperatures"
. Journal of Physics: Conference Series 167
(2009).
http://dx.doi.org/10.1088/1742-6596/167/1/012008---------- MLA ----------
Jorge, G.A., Bekeris, V., Acha, C., Escobar, M.M., Goyanes, S., Zilli, D., et al.
"Effects of phonon dimensionality in the specific heat of multiwall carbon nanotubes at low temperatures"
. Journal of Physics: Conference Series, vol. 167, 2009.
http://dx.doi.org/10.1088/1742-6596/167/1/012008---------- VANCOUVER ----------
Jorge, G.A., Bekeris, V., Acha, C., Escobar, M.M., Goyanes, S., Zilli, D., et al. Effects of phonon dimensionality in the specific heat of multiwall carbon nanotubes at low temperatures. J. Phys. Conf. Ser. 2009;167.
http://dx.doi.org/10.1088/1742-6596/167/1/012008