Effects of phonon dimensionality in the specific heat of multiwall carbon nanotubes at low temperatures

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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...

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Autores principales: Jorge, G.A., Bekeris, V., Acha, C., Escobar, M.M., Goyanes, S., Zilli, D., Cukierman, A.L., Candal, R.J.
Formato: Documento de conferencia publishedVersion
Lenguaje:Inglés
Publicado: 2009
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_17426588_v167_n_p_Jorge
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
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spelling paperaa:paper_17426588_v167_n_p_Jorge2023-06-12T16:51:01Z Effects of phonon dimensionality in the specific heat of multiwall carbon nanotubes at low temperatures J. Phys. Conf. Ser. 2009;167 Jorge, G.A. Bekeris, V. Acha, C. Escobar, M.M. Goyanes, S. Zilli, D. Cukierman, A.L. Candal, R.J. 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. Fil:Jorge, G.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Bekeris, V. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Acha, C. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Escobar, M.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Goyanes, S. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Cukierman, A.L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Candal, R.J. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2009 info:eu-repo/semantics/conferenceObject info:ar-repo/semantics/documento de conferencia info:eu-repo/semantics/publishedVersion application/pdf eng info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_17426588_v167_n_p_Jorge
institution Universidad de Buenos Aires
institution_str I-28
repository_str R-134
collection Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA)
language Inglés
orig_language_str_mv eng
description 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.
format Documento de conferencia
Documento de conferencia
publishedVersion
author Jorge, G.A.
Bekeris, V.
Acha, C.
Escobar, M.M.
Goyanes, S.
Zilli, D.
Cukierman, A.L.
Candal, R.J.
spellingShingle Jorge, G.A.
Bekeris, V.
Acha, C.
Escobar, M.M.
Goyanes, S.
Zilli, D.
Cukierman, A.L.
Candal, R.J.
Effects of phonon dimensionality in the specific heat of multiwall carbon nanotubes at low temperatures
author_facet Jorge, G.A.
Bekeris, V.
Acha, C.
Escobar, M.M.
Goyanes, S.
Zilli, D.
Cukierman, A.L.
Candal, R.J.
author_sort Jorge, G.A.
title Effects of phonon dimensionality in the specific heat of multiwall carbon nanotubes at low temperatures
title_short Effects of phonon dimensionality in the specific heat of multiwall carbon nanotubes at low temperatures
title_full Effects of phonon dimensionality in the specific heat of multiwall carbon nanotubes at low temperatures
title_fullStr Effects of phonon dimensionality in the specific heat of multiwall carbon nanotubes at low temperatures
title_full_unstemmed Effects of phonon dimensionality in the specific heat of multiwall carbon nanotubes at low temperatures
title_sort effects of phonon dimensionality in the specific heat of multiwall carbon nanotubes at low temperatures
publishDate 2009
url http://hdl.handle.net/20.500.12110/paper_17426588_v167_n_p_Jorge
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