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Electrophysical Properties of Onion-Like Carbon Full article

Общее Language: Английский, Genre: Full article,
Status: Published, Source type: Translated
Journal Russian Physics Journal
ISSN: 1064-8887 , E-ISSN: 1573-9228
Output data Year: 2016, Volume: 59, Number: 2, Pages: 171-176 Pages count : 6 DOI: 10.1007/s11182-016-0756-1
Tags electrical resistivity, magnetoresistivity, onion-like carbon
Authors Tkachev E.N. 1 , Romanenko A.I. 1,2 , Zhdanov K.R. 1 , Anikeeva O.B. 1 , Buryakov T.I. 3 , Kuznetsov V.L. 4,5 , Moseenkov S.I. 4
Affiliations
1 A. V. Nikolaev Institute of Inorganic Chemistry of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
2 National Research Tomsk State University, Tomsk, Russia
3 V. D. Kuznetsov Siberian Physical-Technical Institute at Tomsk State University, Tomsk, Russia
4 G. K. Boreskov Institute of Catalysis of the Siberian Branch of the Russian Academy of Sciences, Novosibirsk, Russia
5 Novosibirsk State University, Novosibirsk, Russia

Funding (3)

1 Federal Agency for Scientific Organizations V.45.3.5.
2 Russian Foundation for Basic Research 14-03-31355
3 Russian Foundation for Basic Research 15-32-50712

Abstract: The paper examines electrophysical properties of onion-like carbon (OLC) samples, where particles have the average size of 4–8 nm and are formed by 5–10 nested fullerene-like spheres connected by 1-3 common curved graphene shells into aggregates with a size of 50–300 nm. We measured the temperature dependence of electrical resistance from 4.2 to 300 K and dependence of magnetoresistance in magnetic fields up to 6 T at the temperature of 4.2 K. Temperature dependences of electrical resistance of samples can be described within the framework of the Mott law with variable hop length for the one-dimensional case or within the framework of the Efros–Shklovskii Coulomb gap. We observed the quadratically increasing positive magnetoresistance up to 6 T associated with compression of wave functions of conduction electrons. Negative magnetoresistance was observed in the range of magnetic fields up to 1–2 T in the case of some samples. This is due to the fact that magnetic field suppresses the contributions to magnetoresistance made by interference effects in the area of hopping conductivity. The measurements were used to estimate the localization radius that is comparable to the diameter of OLC particles (nano-onions).
Cite: Tkachev E.N. , Romanenko A.I. , Zhdanov K.R. , Anikeeva O.B. , Buryakov T.I. , Kuznetsov V.L. , Moseenkov S.I.
Electrophysical Properties of Onion-Like Carbon
Russian Physics Journal. 2016. V.59. N2. P.171-176. DOI: 10.1007/s11182-016-0756-1 publication_identifier_short.wos_identifier_type publication_identifier_short.scopus_identifier_type publication_identifier_short.rinz_identifier_type
ArticleLinkType.TRANSLATED_TO_ORIGINAL: Ткачев Е.Н. , Романенко А.И. , Жданов К.Р. , Аникеева О.Б. , Буряков Т.И. , Кузнецов В.Л. , Мосеенков С.И.
Электрофизические свойства углерода луковичной структуры
Известия высших учебных заведений. Физика. 2016. Т.59. №2. С.14-18. publication_identifier_short.rinz_identifier_type
Dates:
Submitted: Oct 20, 2015
Published print: Jun 1, 2016
Published online: Jun 4, 2016
Identifiers:
publication_identifier.wos_identifier_type WOS:000377918500003
publication_identifier.scopus_identifier_type 2-s2.0-84975705470
publication_identifier.rinz_identifier_type 27138849
publication_identifier.accession_number_identifier_type 2016:945249
publication_identifier.chemical_accession_number_identifier_type 165:334884
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