Isotopic substitution of boron and carbon in superconducting diamond epilayers grown by MPCVD

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F10%3A00346854" target="_blank" >RIV/61389005:_____/10:00346854 - isvavai.cz</a>

Alternative codes found

RIV/26722445:_____/10:#0000573

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Isotopic substitution of boron and carbon in superconducting diamond epilayers grown by MPCVD

Original language description

Sets of heavily boron-doped {100}-oriented diamond epilayers have been grown by MPCVD from isotope-enriched gases such as (CH4)-C-13 and (B2H6)-B-10 or (CH4)-C-13 and naturally abundant (B2H6)-B-11, and the resulting concentration profiles of the variousboron isotopes were measured by SIMS. In the particular case of the (CB)-C-13-B-10 set, the high absorption cross section of B-10 made neutron depth profiling possible for this element. The vibrational and superconducting properties of these epilayers were compared to those of films grown from gases containing the isotopes in their natural abundance. The critical temperature T-c values were found to be lower both in the (CB)-C-13-B-11 and (CB)-C-13-B-10 sets, as expected for a conventional pairing mechanism mediated by phonons. In good agreement with recent studies, the isotope-effect coefficient for Tc was found to be much higher than the classical 0.5 value. Various origins for this behaviour are suggested.

Czech name

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Czech description

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Type

J_x - 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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

2010

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Diamond and Related Materials

ISSN

0925-9635

e-ISSN

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Volume of the periodical

19

Issue of the periodical within the volume

7

Country of publishing house

CH - SWITZERLAND

Number of pages

4

Pages from-to

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UT code for WoS article

000279229700025

EID of the result in the Scopus database

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