Direct evidence for superconducting quasiparticle in triple-layered high-Tc superconductor

T. Takahashi; H. Matsui; T. Sato; S. C. Wang; H. B. Yang; H. Ding; T. Fujii; T. Watanabe; A. Matsuda

doi:10.1016/S0921-4534(02)02459-0

Direct evidence for superconducting quasiparticle in triple-layered high-T_c superconductor

T. Takahashi, H. Matsui, T. Sato, S. C. Wang, H. B. Yang, H. Ding, T. Fujii, T. Watanabe, A. Matsuda

Research output: Contribution to journal › Conference article › peer-review

Abstract

We have performed angle-resolved photoemission spectroscopy (ARPES) on triple-layered high-T_c cuprate superconductor Bi₂Sr₂Ca₂Cu₃O_10+δ. We found a direct experimental evidence for Bogoliubov quasiparticle in high-T_c cuprates by observing the full energy dispersion below and above the Fermi level. The excellent quantitative agreement in the dispersion as well as the coherence factors between the ARPES experiment and Bardeen, Cooper and Shrieffer (BCS) theory establishes the validity and universality of the basic framework of BCS theory in high-T_c cuprates.

Original language	English
Pages (from-to)	305-306
Number of pages	2
Journal	Physica C: Superconductivity and its applications
Volume	388-389
DOIs	https://doi.org/10.1016/S0921-4534(02)02459-0
Publication status	Published - 2003 May
Event	proceedings of the 23rd international conference on low temper - Hiroshima, Japan Duration: 2002 Aug 20 → 2002 Aug 27

Keywords

ARPES
BCS theory
Quasiparticle

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/S0921-4534(02)02459-0

Cite this

@article{c88117d9990446bcae416a9165f18204,

title = "Direct evidence for superconducting quasiparticle in triple-layered high-Tc superconductor",

abstract = "We have performed angle-resolved photoemission spectroscopy (ARPES) on triple-layered high-Tc cuprate superconductor Bi2Sr2Ca2Cu3O10+δ. We found a direct experimental evidence for Bogoliubov quasiparticle in high-Tc cuprates by observing the full energy dispersion below and above the Fermi level. The excellent quantitative agreement in the dispersion as well as the coherence factors between the ARPES experiment and Bardeen, Cooper and Shrieffer (BCS) theory establishes the validity and universality of the basic framework of BCS theory in high-Tc cuprates.",

keywords = "ARPES, BCS theory, Quasiparticle",

author = "T. Takahashi and H. Matsui and T. Sato and Wang, {S. C.} and Yang, {H. B.} and H. Ding and T. Fujii and T. Watanabe and A. Matsuda",

note = "Funding Information: We thank T. Tohyama, K. Yamada, J.R. Engelbrecht and Z. Wang for useful discussions. This work is supported by grants from MEXT of Japan, US NSF DMR-0072205, and Sloan Foundation. T.S. thanks a financial support from JSPS. The Synchrotron Radiation Center is supported by US NSF DMR-0084402.; proceedings of the 23rd international conference on low temper ; Conference date: 20-08-2002 Through 27-08-2002",

year = "2003",

month = may,

doi = "10.1016/S0921-4534(02)02459-0",

language = "English",

volume = "388-389",

pages = "305--306",

journal = "Physica C: Superconductivity and its Applications",

issn = "0921-4534",

publisher = "Elsevier",

}

TY - JOUR

T1 - Direct evidence for superconducting quasiparticle in triple-layered high-Tc superconductor

AU - Takahashi, T.

AU - Matsui, H.

AU - Sato, T.

AU - Wang, S. C.

AU - Yang, H. B.

AU - Ding, H.

AU - Fujii, T.

AU - Watanabe, T.

AU - Matsuda, A.

N1 - Funding Information: We thank T. Tohyama, K. Yamada, J.R. Engelbrecht and Z. Wang for useful discussions. This work is supported by grants from MEXT of Japan, US NSF DMR-0072205, and Sloan Foundation. T.S. thanks a financial support from JSPS. The Synchrotron Radiation Center is supported by US NSF DMR-0084402.

PY - 2003/5

Y1 - 2003/5

N2 - We have performed angle-resolved photoemission spectroscopy (ARPES) on triple-layered high-Tc cuprate superconductor Bi2Sr2Ca2Cu3O10+δ. We found a direct experimental evidence for Bogoliubov quasiparticle in high-Tc cuprates by observing the full energy dispersion below and above the Fermi level. The excellent quantitative agreement in the dispersion as well as the coherence factors between the ARPES experiment and Bardeen, Cooper and Shrieffer (BCS) theory establishes the validity and universality of the basic framework of BCS theory in high-Tc cuprates.

AB - We have performed angle-resolved photoemission spectroscopy (ARPES) on triple-layered high-Tc cuprate superconductor Bi2Sr2Ca2Cu3O10+δ. We found a direct experimental evidence for Bogoliubov quasiparticle in high-Tc cuprates by observing the full energy dispersion below and above the Fermi level. The excellent quantitative agreement in the dispersion as well as the coherence factors between the ARPES experiment and Bardeen, Cooper and Shrieffer (BCS) theory establishes the validity and universality of the basic framework of BCS theory in high-Tc cuprates.

KW - ARPES

KW - BCS theory

KW - Quasiparticle

UR - http://www.scopus.com/inward/record.url?scp=0037513146&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0037513146&partnerID=8YFLogxK

U2 - 10.1016/S0921-4534(02)02459-0

DO - 10.1016/S0921-4534(02)02459-0

M3 - Conference article

AN - SCOPUS:0037513146

SN - 0921-4534

VL - 388-389

SP - 305

EP - 306

JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

T2 - proceedings of the 23rd international conference on low temper

Y2 - 20 August 2002 through 27 August 2002

ER -