Influence of gamma Irradiation on Electrophysical Properties of Onion-Like Carbon
Full article
| Общее |
Language:
Английский,
Genre:
Full article,
Status:
Published,
Source type:
Original
|
| Conference |
Exotic States in Materials with Strongly Correlated Electrons : International Workshop
07-10 Sep 2007
,
Sinaia
|
| Journal |
Journal of Optoelectronics and Advanced Materials
ISSN: 1454-4164
, E-ISSN: 1841-7132
|
| Output data |
Year: 2008,
Volume: 10,
Number: 7,
Pages: 1745-1748
Pages count
: 4
|
| Tags |
Conductivity, Gamma irradiation, Onion-like carbon |
| Authors |
Romanenko A.I.
1,2
,
Anikeeva O.B.
1,2
,
Kuznetsov V.L.
2,3
,
Buryakov T.I.
1,2
,
Tkachev E.N.
1,2
,
Moseenkov S.I.
2,3
,
Arzhannikov A.V.
2,4
|
| Affiliations |
| 1 |
Nikolaev Institute of Inorganic Chemistry Siberian Branch of Russian Academy of Science, Novosibirsk, Russia
|
| 2 |
Novosibirsk State University, Novosibirsk, Russia
|
| 3 |
Boreskov Institute of Catalysis Siberian Branch of Russian Academy of Science, Novosibirsk, Russia
|
| 4 |
Budker Institute of Nuclear Physics Siberian Branch of Russian Academy of Science, Novosibirsk, Russia
|
|
Funding (3)
|
1
|
The Ministry of Education and Science of the Russian Federation
|
2.1.1.1604
|
|
2
|
The Ministry of Education and Science of the Russian Federation
|
02.513.11.3314
|
|
3
|
Council for Grants of the President of the Russian Federation
|
НШ-4419.2006.3
|
Temperature dependence of the conductivity of onion-like carbon (OLC) was investigated before and after gamma
irradiation. It is found that the temperature dependence of the conductivity is described by the mechanism of variable range hopping conductivity (VRHC). The density of states on Fermi level N(EF) is estimated on slope angle of curves σ(T) in coordinates ln[σ(T)/σ293] – T -1/2. The gamma irradiation leads to the increase N(EF) for OLC prepared by vacuum annealing of nanodiamond (ND) particles at temperatures 1400 K, 1650 K and to the decrease N(EF) for OLC produced by the annealing ND at temperatures 1850 K.