Electronic structure of superconducting InN

We report on an investigation of superconductivity in n-type InN. There is an optimum carrier density for the occurrence of the superconductivity. The lowest carrier density is limited by the Mott transition of n e ~ 2 10 17 cm 3 and the highest density is limited by the superconductor to insulator...

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Published inScience and technology of advanced materials Vol. 7; no. sup1; pp. S112 - S116
Main Author Inushima, Takashi
Format Journal Article
LanguageEnglish
Published Taylor & Francis 01.01.2006
Subjects
73.61.Ey
74.25.Fy
InN
Superconductivity
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Abstract We report on an investigation of superconductivity in n-type InN. There is an optimum carrier density for the occurrence of the superconductivity. The lowest carrier density is limited by the Mott transition of n e ~ 2 10 17 cm 3 and the highest density is limited by the superconductor to insulator transition of n e ~ 5 10 20 cm 3 . We propose a mechanism where the occurrence of the superconductivity is related to the presence of In-In chains of finite length in the ab plane. The In-In chains, which originate from the inversion domains of InN grown on sapphire (0 0 0 1) and elongate along , are coupled toform micro Josephson-junctions.
AbstractList We report on an investigation of superconductivity in n-type InN. There is an optimum carrier density for the occurrence of the superconductivity. The lowest carrier density is limited by the Mott transition of n e ~ 2 10 17 cm 3 and the highest density is limited by the superconductor to insulator transition of n e ~ 5 10 20 cm 3 . We propose a mechanism where the occurrence of the superconductivity is related to the presence of In-In chains of finite length in the ab plane. The In-In chains, which originate from the inversion domains of InN grown on sapphire (0 0 0 1) and elongate along , are coupled toform micro Josephson-junctions.
Author Inushima, Takashi
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Cites_doi 10.1103/PhysRevB.70.052504
10.1063/1.1702132
10.1016/0022-5088(69)90039-3
10.1016/j.physc.2005.01.037
10.1103/PhysRev.167.331
10.1143/JPSJ.73.530
10.1107/S0021889869006558
10.1016/0921-4526(95)00309-W
10.1103/PhysRevB.64.012507
10.1016/j.physc.2005.02.065
10.1088/0953-8984/14/44/469
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Snippet We report on an investigation of superconductivity in n-type InN. There is an optimum carrier density for the occurrence of the superconductivity. The lowest...
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Title Electronic structure of superconducting InN
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