Laser-excited photoemission spectroscopy study of superconducting boron-doped diamond

K. Ishizaka; R. Eguchi; S. Tsuda; T. Kiss; T. Shimojima; T. Yokoya; S. Shin; T. Togashi; S. Watanabe; C. T. Chen; C. Q. Zhang; Y. Takano; M. Nagao; I. Sakaguchi; T. Takenouchi; H. Kawarada

doi:10.1016/j.stam.2005.11.002

Laser-excited photoemission spectroscopy study of superconducting boron-doped diamond

K. Ishizaka, R. Eguchi, S. Tsuda, T. Kiss, T. Shimojima, T. Yokoya, S. Shin, T. Togashi, S. Watanabe, C. T. Chen, C. Q. Zhang, Y. Takano, M. Nagao, I. Sakaguchi, T. Takenouchi, H. Kawarada

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8 Citations (Scopus)

Abstract

We have investigated the low-energy electronic state of boron-doped diamond thin film by the laser-excited photoemission spectroscopy. A clear Fermi-edge is observed for samples doped above the semiconductor-metal boundary, together with the characteristic structures at 150 × n meV possibly due to the strong electron-lattice coupling effect. In addition, for the superconducting sample, we observed a shift of the leading edge below T_c indicative of a superconducting gap opening. We discuss the electron-lattice coupling and the superconductivity in doped diamond.

Original language	English
Pages (from-to)	17-21
Number of pages	5
Journal	Science and Technology of Advanced Materials
Volume	7
Issue number	SUPPL. 1
DOIs	https://doi.org/10.1016/j.stam.2005.11.002
Publication status	Published - 2006

ASJC Scopus subject areas

Materials Science(all)

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10.1016/j.stam.2005.11.002

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Ishizaka, K., Eguchi, R., Tsuda, S., Kiss, T., Shimojima, T., Yokoya, T., Shin, S., Togashi, T., Watanabe, S., Chen, C. T., Zhang, C. Q., Takano, Y., Nagao, M., Sakaguchi, I., Takenouchi, T., & Kawarada, H. (2006). Laser-excited photoemission spectroscopy study of superconducting boron-doped diamond. Science and Technology of Advanced Materials, 7(SUPPL. 1), 17-21. https://doi.org/10.1016/j.stam.2005.11.002

Ishizaka, K, Eguchi, R, Tsuda, S, Kiss, T, Shimojima, T, Yokoya, T, Shin, S, Togashi, T, Watanabe, S, Chen, CT, Zhang, CQ, Takano, Y, Nagao, M, Sakaguchi, I, Takenouchi, T & Kawarada, H 2006, 'Laser-excited photoemission spectroscopy study of superconducting boron-doped diamond', Science and Technology of Advanced Materials, vol. 7, no. SUPPL. 1, pp. 17-21. https://doi.org/10.1016/j.stam.2005.11.002

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abstract = "We have investigated the low-energy electronic state of boron-doped diamond thin film by the laser-excited photoemission spectroscopy. A clear Fermi-edge is observed for samples doped above the semiconductor-metal boundary, together with the characteristic structures at 150 × n meV possibly due to the strong electron-lattice coupling effect. In addition, for the superconducting sample, we observed a shift of the leading edge below Tc indicative of a superconducting gap opening. We discuss the electron-lattice coupling and the superconductivity in doped diamond.",

author = "K. Ishizaka and R. Eguchi and S. Tsuda and T. Kiss and T. Shimojima and T. Yokoya and S. Shin and T. Togashi and S. Watanabe and Chen, {C. T.} and Zhang, {C. Q.} and Y. Takano and M. Nagao and I. Sakaguchi and T. Takenouchi and H. Kawarada",

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doi = "10.1016/j.stam.2005.11.002",

language = "English",

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TY - JOUR

T1 - Laser-excited photoemission spectroscopy study of superconducting boron-doped diamond

AU - Ishizaka, K.

AU - Eguchi, R.

AU - Tsuda, S.

AU - Kiss, T.

AU - Shimojima, T.

AU - Yokoya, T.

AU - Shin, S.

AU - Togashi, T.

AU - Watanabe, S.

AU - Chen, C. T.

AU - Zhang, C. Q.

AU - Takano, Y.

AU - Nagao, M.

AU - Sakaguchi, I.

AU - Takenouchi, T.

AU - Kawarada, H.

PY - 2006

Y1 - 2006

N2 - We have investigated the low-energy electronic state of boron-doped diamond thin film by the laser-excited photoemission spectroscopy. A clear Fermi-edge is observed for samples doped above the semiconductor-metal boundary, together with the characteristic structures at 150 × n meV possibly due to the strong electron-lattice coupling effect. In addition, for the superconducting sample, we observed a shift of the leading edge below Tc indicative of a superconducting gap opening. We discuss the electron-lattice coupling and the superconductivity in doped diamond.

AB - We have investigated the low-energy electronic state of boron-doped diamond thin film by the laser-excited photoemission spectroscopy. A clear Fermi-edge is observed for samples doped above the semiconductor-metal boundary, together with the characteristic structures at 150 × n meV possibly due to the strong electron-lattice coupling effect. In addition, for the superconducting sample, we observed a shift of the leading edge below Tc indicative of a superconducting gap opening. We discuss the electron-lattice coupling and the superconductivity in doped diamond.

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DO - 10.1016/j.stam.2005.11.002

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JO - Science and Technology of Advanced Materials

JF - Science and Technology of Advanced Materials

IS - SUPPL. 1

ER -

Laser-excited photoemission spectroscopy study of superconducting boron-doped diamond

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