Separation of intra- and intergranular magnetotransport properties in nanocrystalline diamond films on the metallic side of the metal-insulator transition

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21460%2F11%3A00183545" target="_blank" >RIV/68407700:21460/11:00183545 - isvavai.cz</a>
Alternative codes found
RIV/26722445:_____/11:#0000635 RIV/68378271:_____/11:00365279 RIV/61389005:_____/11:00365279
Result on the web
<a href="http://dx.doi.org/10.1088/1367-2630/13/8/083008" target="_blank" >http://dx.doi.org/10.1088/1367-2630/13/8/083008</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1088/1367-2630/13/8/083008" target="_blank" >10.1088/1367-2630/13/8/083008</a>

Result language
angličtina
Original language name
Separation of intra- and intergranular magnetotransport properties in nanocrystalline diamond films on the metallic side of the metal-insulator transition
Original language description
A systematic study on the morphology and electronic properties of thin heavily boron-doped nanocrystalline diamond (NCD) films is presented. The films have nominally the same thickness (approximate to 150 nm) and are grown with a fixed B/C ratio (5000 ppm) but with different C/H ratios (0.5-5%) in the gas phase. The morphology of the films is investigated by x-ray diffraction and atomic force microscopy measurements, which confirm that lower C/H ratios lead to a larger average grain size. Magnetotransport measurements reveal a decrease in resistivity and a large increase in mobility, approaching the values obtained for single-crystal diamond as the average grain size of the films increases. In all films, the temperature dependence of resistivity decreases with larger grains and the charge carrier density and mobility are thermally activated. It is possible to separate the intra- and intergrain contributions for resistivity and mobility, which indicates that in these complex systems
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
<a href="/en/project/KAN400480701" target="_blank" >KAN400480701: NANOSTRUCTURES BASED ON CARBON AND POLYMERS FOR APPLICATION IN BIOELECTRONIC AND MEDICINE</a><br>
Continuities
Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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