Superconductivity of InN observed in the magnetoresistance at low temperature

T. Inushima, N. Kato, T. Takenobu, M. Motokawa, M. Higashiwaki, T. Matsui

Research output: Contribution to journalArticle

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Abstract

We report on the superconductivity of 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 nc 2 × 10 17 cm-3 and the highest density is limited by the superconductivity to metal transition of ni ∼ 7 × 10 20cm-3. We propose a mechanism where the occurrence of the superconductivity is related to the presence of In-In chains of finite lengths in the ab plane. The In-In chains, which originate from the inversion domains of InN grown on sapphire (0001) and elongate along [110], are coupled to form micro Josephson-junctions.

Original languageEnglish
Article number064
Pages (from-to)279-282
Number of pages4
JournalJournal of Physics: Conference Series
Volume51
Issue number1
DOIs
Publication statusPublished - 2006 Dec 1
Externally publishedYes

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superconductivity
occurrences
Josephson junctions
sapphire
transition metals
inversions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Inushima, T., Kato, N., Takenobu, T., Motokawa, M., Higashiwaki, M., & Matsui, T. (2006). Superconductivity of InN observed in the magnetoresistance at low temperature. Journal of Physics: Conference Series, 51(1), 279-282. [064]. https://doi.org/10.1088/1742-6596/51/1/064

Superconductivity of InN observed in the magnetoresistance at low temperature. / Inushima, T.; Kato, N.; Takenobu, T.; Motokawa, M.; Higashiwaki, M.; Matsui, T.

In: Journal of Physics: Conference Series, Vol. 51, No. 1, 064, 01.12.2006, p. 279-282.

Research output: Contribution to journalArticle

Inushima, T, Kato, N, Takenobu, T, Motokawa, M, Higashiwaki, M & Matsui, T 2006, 'Superconductivity of InN observed in the magnetoresistance at low temperature', Journal of Physics: Conference Series, vol. 51, no. 1, 064, pp. 279-282. https://doi.org/10.1088/1742-6596/51/1/064
Inushima T, Kato N, Takenobu T, Motokawa M, Higashiwaki M, Matsui T. Superconductivity of InN observed in the magnetoresistance at low temperature. Journal of Physics: Conference Series. 2006 Dec 1;51(1):279-282. 064. https://doi.org/10.1088/1742-6596/51/1/064
Inushima, T. ; Kato, N. ; Takenobu, T. ; Motokawa, M. ; Higashiwaki, M. ; Matsui, T. / Superconductivity of InN observed in the magnetoresistance at low temperature. In: Journal of Physics: Conference Series. 2006 ; Vol. 51, No. 1. pp. 279-282.
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