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Effects of non-hydrostatic pressure on electrical resistance of bundled single-wall carbon nanotubes
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.ORCID iD: 0000-0002-4254-5020
Ural Federal University, Yekaterinburg.
Luleå University of Technology, Department of Engineering Sciences and Mathematics, Material Science.
Ural Federal University, Yekaterinburg.
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2013 (English)In: 7th EEIGM International Conference on Advanced Materials Research: 21–22 March 2013, LTU, Luleå, Sweden, IOP Publishing Ltd , 2013, article id 12013Conference paper, Published paper (Refereed)
Abstract [en]

Recent studies have shown that single wall carbon nanotubes (SWCNT) exhibit a sequence of phase transitions and demonstrate a high structural stability up to 35 GPa of quasi-hydrostatic pressure [1] beyond which an irreversible structural transformation occurs. Here we report on the study of electrical resistance of SWCNTs at pressures up to 34 GPa in the temperature range of 293 – 395 K. In the pressure range 10–25 GPathe rate of resistance change decreases considerably. We associate such behavior of the resistance with a structural modification of the SWCNTs or/and change of the conductivity character at high pressure. Raman spectra of the samples recovered after 30 GPa exhibit a large increase of defect concentration in the CNTs. Isobaric temperature dependences of the CNT resistance R(T) measured in the temperature range 300–400 K reveal some changes with pressure whereas the semiconducting character of the R(T) remains unaltered.

Place, publisher, year, edition, pages
IOP Publishing Ltd , 2013. article id 12013
Series
I O P Conference Series: Materials Science and Engineering, ISSN 1757-8981 ; 1
National Category
Other Physics Topics
Research subject
Experimental physics
Identifiers
URN: urn:nbn:se:ltu:diva-31620DOI: 10.1088/1757-899X/48/1/012013ISI: 000329228200013Scopus ID: 2-s2.0-84893627755Local ID: 5dcb6c84-9dcf-4dc5-acfc-4890136eebdfOAI: oai:DiVA.org:ltu-31620DiVA, id: diva2:1004854
Conference
EEIGM International Conference on Advanced materials research : 21/03/2013 - 22/03/2013
Note
Validerad; 2013; 20131213 (ysko)Available from: 2016-09-30 Created: 2016-09-30 Last updated: 2018-07-10Bibliographically approved

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Noël, MaximeMases, MattiasSoldatov, Alexander

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