11B-NMR study in boron-doped diamond films

We have investigated an origin of the superconductivity discovered in boron (B)-doped diamonds by means of 11B-NMR on heteroepitaxially grown (1 1 1) and (1 0 0) films and polycrystalline film. The characteristic difference of B-NMR spectral shape for the (1 1 1) and (1 0 0) thin films is demonstrat...

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Main Author: H. Mukuda, T. Tsuchida, A. Harada, Y. Kitaoka, T. Takenouchi, Y. Takano, M. Nagao, I. Sakaguchi and H. Kawarada
Format: Article
Language:English
Published: Taylor & Francis Group 2006-01-01
Series:Science and Technology of Advanced Materials
Online Access:http://www.iop.org/EJ/abstract/-search=58672466.16/1468-6996/7/S1/A09
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author H. Mukuda, T. Tsuchida, A. Harada, Y. Kitaoka, T. Takenouchi, Y. Takano, M. Nagao, I. Sakaguchi and H. Kawarada
author_facet H. Mukuda, T. Tsuchida, A. Harada, Y. Kitaoka, T. Takenouchi, Y. Takano, M. Nagao, I. Sakaguchi and H. Kawarada
author_sort H. Mukuda, T. Tsuchida, A. Harada, Y. Kitaoka, T. Takenouchi, Y. Takano, M. Nagao, I. Sakaguchi and H. Kawarada
collection DOAJ
description We have investigated an origin of the superconductivity discovered in boron (B)-doped diamonds by means of 11B-NMR on heteroepitaxially grown (1 1 1) and (1 0 0) films and polycrystalline film. The characteristic difference of B-NMR spectral shape for the (1 1 1) and (1 0 0) thin films is demonstrated as arising from the difference in the concentration (nB(1)) of boron substituted for carbon. It is revealed from a scaling between a superconducting transition temperature Tc and nB(1) that the holes doped into diamond via the substitution of boron for carbon are responsible for the onset of superconductivity. The result suggests that the superconductivity in boron-doped diamond is mediated by the electron–phonon interaction brought about a high Debye temperature ~1860 K characteristic for the diamond structure.
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spelling doaj.art-da136a11df7c4f91ba9d23903a8cdcbc2022-12-22T00:18:13ZengTaylor & Francis GroupScience and Technology of Advanced Materials1468-69961878-55142006-01-017S1S3711B-NMR study in boron-doped diamond filmsH. Mukuda, T. Tsuchida, A. Harada, Y. Kitaoka, T. Takenouchi, Y. Takano, M. Nagao, I. Sakaguchi and H. KawaradaWe have investigated an origin of the superconductivity discovered in boron (B)-doped diamonds by means of 11B-NMR on heteroepitaxially grown (1 1 1) and (1 0 0) films and polycrystalline film. The characteristic difference of B-NMR spectral shape for the (1 1 1) and (1 0 0) thin films is demonstrated as arising from the difference in the concentration (nB(1)) of boron substituted for carbon. It is revealed from a scaling between a superconducting transition temperature Tc and nB(1) that the holes doped into diamond via the substitution of boron for carbon are responsible for the onset of superconductivity. The result suggests that the superconductivity in boron-doped diamond is mediated by the electron–phonon interaction brought about a high Debye temperature ~1860 K characteristic for the diamond structure.http://www.iop.org/EJ/abstract/-search=58672466.16/1468-6996/7/S1/A09
spellingShingle H. Mukuda, T. Tsuchida, A. Harada, Y. Kitaoka, T. Takenouchi, Y. Takano, M. Nagao, I. Sakaguchi and H. Kawarada
11B-NMR study in boron-doped diamond films
Science and Technology of Advanced Materials
title 11B-NMR study in boron-doped diamond films
title_full 11B-NMR study in boron-doped diamond films
title_fullStr 11B-NMR study in boron-doped diamond films
title_full_unstemmed 11B-NMR study in boron-doped diamond films
title_short 11B-NMR study in boron-doped diamond films
title_sort 11b nmr study in boron doped diamond films
url http://www.iop.org/EJ/abstract/-search=58672466.16/1468-6996/7/S1/A09
work_keys_str_mv AT hmukudattsuchidaaharadaykitaokattakenouchiytakanomnagaoisakaguchiandhkawarada 11bnmrstudyinborondopeddiamondfilms