Xenon-plasma light ultrahigh-resolution ARPES study of low-energy single-particle excitation gap in (Bi,Pb)2Sr2CuO 6

K. Nakayama; T. Sato; Y. Sekiba; K. Terashima; P. Richard; K. Kudo; N. Okumura; T. Sasaki; N. Kobayashi; T. Takahashi

doi:10.1016/j.physc.2010.01.001

Xenon-plasma light ultrahigh-resolution ARPES study of low-energy single-particle excitation gap in (Bi,Pb)₂Sr₂CuO ₆

K. Nakayama, T. Sato, Y. Sekiba, K. Terashima, P. Richard, K. Kudo, N. Okumura, T. Sasaki, N. Kobayashi, T. Takahashi

Graduate School of Natural Science and Technology

Research output: Contribution to journal › Article › peer-review

Abstract

We have performed ultrahigh-resolution angle-resolved photoemission spectroscopy of (Bi,Pb)₂Sr₂CuO₆ by using a newly developed xenon-plasma light source to clarify the origin of the pseudogap (PG). We determined the comprehensive momentum and temperature dependences of the superconducting (SC) gap and the PG, and revealed a smooth evolution of the PG from the SC gap. We also found a linear scaling behavior of the characteristic PG temperature with the SC gap size regardless of the momentum location. These experimental results strongly suggest that the observed PG is caused by the precursor pairing.

Original language	English
Pages (from-to)	S129-S131
Journal	Physica C: Superconductivity and its applications
Volume	470
Issue number	SUPPL.1
DOIs	https://doi.org/10.1016/j.physc.2010.01.001
Publication status	Published - Dec 2010

Keywords

ARPES
Cuprate
Pseudogap
Superconducting gap

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Energy Engineering and Power Technology
Electrical and Electronic Engineering

Access to Document

10.1016/j.physc.2010.01.001

Cite this

Nakayama, K., Sato, T., Sekiba, Y., Terashima, K., Richard, P., Kudo, K., Okumura, N., Sasaki, T., Kobayashi, N., & Takahashi, T. (2010). Xenon-plasma light ultrahigh-resolution ARPES study of low-energy single-particle excitation gap in (Bi,Pb)₂Sr₂CuO ₆. Physica C: Superconductivity and its applications, 470(SUPPL.1), S129-S131. https://doi.org/10.1016/j.physc.2010.01.001

Nakayama, K, Sato, T, Sekiba, Y, Terashima, K, Richard, P, Kudo, K, Okumura, N, Sasaki, T, Kobayashi, N & Takahashi, T 2010, 'Xenon-plasma light ultrahigh-resolution ARPES study of low-energy single-particle excitation gap in (Bi,Pb)₂Sr₂CuO ₆', Physica C: Superconductivity and its applications, vol. 470, no. SUPPL.1, pp. S129-S131. https://doi.org/10.1016/j.physc.2010.01.001

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title = "Xenon-plasma light ultrahigh-resolution ARPES study of low-energy single-particle excitation gap in (Bi,Pb)2Sr2CuO 6",

abstract = "We have performed ultrahigh-resolution angle-resolved photoemission spectroscopy of (Bi,Pb)2Sr2CuO6 by using a newly developed xenon-plasma light source to clarify the origin of the pseudogap (PG). We determined the comprehensive momentum and temperature dependences of the superconducting (SC) gap and the PG, and revealed a smooth evolution of the PG from the SC gap. We also found a linear scaling behavior of the characteristic PG temperature with the SC gap size regardless of the momentum location. These experimental results strongly suggest that the observed PG is caused by the precursor pairing.",

keywords = "ARPES, Cuprate, Pseudogap, Superconducting gap",

author = "K. Nakayama and T. Sato and Y. Sekiba and K. Terashima and P. Richard and K. Kudo and N. Okumura and T. Sasaki and N. Kobayashi and T. Takahashi",

note = "Funding Information: This work was supported by JSPS, JST-CREST and MEXT of Japan.",

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AU - Nakayama, K.

AU - Sato, T.

AU - Sekiba, Y.

AU - Terashima, K.

AU - Richard, P.

AU - Kudo, K.

AU - Okumura, N.

AU - Sasaki, T.

AU - Kobayashi, N.

AU - Takahashi, T.

N1 - Funding Information: This work was supported by JSPS, JST-CREST and MEXT of Japan.

PY - 2010/12

Y1 - 2010/12

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AB - We have performed ultrahigh-resolution angle-resolved photoemission spectroscopy of (Bi,Pb)2Sr2CuO6 by using a newly developed xenon-plasma light source to clarify the origin of the pseudogap (PG). We determined the comprehensive momentum and temperature dependences of the superconducting (SC) gap and the PG, and revealed a smooth evolution of the PG from the SC gap. We also found a linear scaling behavior of the characteristic PG temperature with the SC gap size regardless of the momentum location. These experimental results strongly suggest that the observed PG is caused by the precursor pairing.

KW - ARPES

KW - Cuprate

KW - Pseudogap

KW - Superconducting gap

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