ARPES study of quasiparticle state in electron-doped cuprate Nd 2-xCexCuO4

Hiroaki Matsui; Kensei Terashima; Takafumi Sato; Takashi Takahashi; Shancai Wang; Hongbo Yang; Hong Ding; Tetsushi Uefuji; Kazuyoshi Yamada

doi:10.1016/j.jpcs.2005.10.036

ARPES study of quasiparticle state in electron-doped cuprate Nd _2-xCe_xCuO₄

Hiroaki Matsui, Kensei Terashima, Takafumi Sato, Takashi Takahashi, Shancai Wang, Hongbo Yang, Hong Ding, Tetsushi Uefuji, Kazuyoshi Yamada

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

3 Citations (Scopus)

Abstract

We report high-resolution angle-resolved photoemission spectroscopy on electron-doped cuprate Nd_2-xCe_xCuO₄ to study the quasiparticle (QP) state in the vicinity of the Fermi level. Measurements of momentum dependence have revealed that the mass-renormalized QP state around (π, 0) continuously evolves into the high-energy correlation gap, which opens at the intersecting point of the Fermi surface and the magnetic zone boundary. We also observed that the QP spectrum shows remarkable temperature and Ce-concentration dependence in accordance with the spin correlation. These results indicate that the heavy-mass QP state in the electron-doped cuprate originates in the antiferromagnetic order/fluctuation.

Original language	English
Pages (from-to)	249-253
Number of pages	5
Journal	Journal of Physics and Chemistry of Solids
Volume	67
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jpcs.2005.10.036
Publication status	Published - 2006 Jan

Keywords

C. Photoelectron Spectroscopy

ASJC Scopus subject areas

Chemistry(all)
Materials Science(all)
Condensed Matter Physics

Access to Document

10.1016/j.jpcs.2005.10.036

Cite this

@article{f4b2081f89d949dcba8df9565596d1db,

title = "ARPES study of quasiparticle state in electron-doped cuprate Nd 2-xCexCuO4",

abstract = "We report high-resolution angle-resolved photoemission spectroscopy on electron-doped cuprate Nd2-xCexCuO4 to study the quasiparticle (QP) state in the vicinity of the Fermi level. Measurements of momentum dependence have revealed that the mass-renormalized QP state around (π, 0) continuously evolves into the high-energy correlation gap, which opens at the intersecting point of the Fermi surface and the magnetic zone boundary. We also observed that the QP spectrum shows remarkable temperature and Ce-concentration dependence in accordance with the spin correlation. These results indicate that the heavy-mass QP state in the electron-doped cuprate originates in the antiferromagnetic order/fluctuation.",

keywords = "C. Photoelectron Spectroscopy",

author = "Hiroaki Matsui and Kensei Terashima and Takafumi Sato and Takashi Takahashi and Shancai Wang and Hongbo Yang and Hong Ding and Tetsushi Uefuji and Kazuyoshi Yamada",

note = "Funding Information: We thank H. Ikeda and Kosaku Yamada for valuable discussion. This work was supported by grants from the MEXT of Japan, US NSF DMR-0072205, and US petroleum Research Fund. H.M. thanks a financial support from JSPS. The Synchrotron Radiation Center is supported by US NSF DMR-0084402.",

year = "2006",

month = jan,

doi = "10.1016/j.jpcs.2005.10.036",

language = "English",

volume = "67",

pages = "249--253",

journal = "Journal of Physics and Chemistry of Solids",

issn = "0022-3697",

publisher = "Elsevier Limited",

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}

TY - JOUR

T1 - ARPES study of quasiparticle state in electron-doped cuprate Nd 2-xCexCuO4

AU - Matsui, Hiroaki

AU - Terashima, Kensei

AU - Sato, Takafumi

AU - Takahashi, Takashi

AU - Wang, Shancai

AU - Yang, Hongbo

AU - Ding, Hong

AU - Uefuji, Tetsushi

AU - Yamada, Kazuyoshi

N1 - Funding Information: We thank H. Ikeda and Kosaku Yamada for valuable discussion. This work was supported by grants from the MEXT of Japan, US NSF DMR-0072205, and US petroleum Research Fund. H.M. thanks a financial support from JSPS. The Synchrotron Radiation Center is supported by US NSF DMR-0084402.

PY - 2006/1

Y1 - 2006/1

N2 - We report high-resolution angle-resolved photoemission spectroscopy on electron-doped cuprate Nd2-xCexCuO4 to study the quasiparticle (QP) state in the vicinity of the Fermi level. Measurements of momentum dependence have revealed that the mass-renormalized QP state around (π, 0) continuously evolves into the high-energy correlation gap, which opens at the intersecting point of the Fermi surface and the magnetic zone boundary. We also observed that the QP spectrum shows remarkable temperature and Ce-concentration dependence in accordance with the spin correlation. These results indicate that the heavy-mass QP state in the electron-doped cuprate originates in the antiferromagnetic order/fluctuation.

AB - We report high-resolution angle-resolved photoemission spectroscopy on electron-doped cuprate Nd2-xCexCuO4 to study the quasiparticle (QP) state in the vicinity of the Fermi level. Measurements of momentum dependence have revealed that the mass-renormalized QP state around (π, 0) continuously evolves into the high-energy correlation gap, which opens at the intersecting point of the Fermi surface and the magnetic zone boundary. We also observed that the QP spectrum shows remarkable temperature and Ce-concentration dependence in accordance with the spin correlation. These results indicate that the heavy-mass QP state in the electron-doped cuprate originates in the antiferromagnetic order/fluctuation.

KW - C. Photoelectron Spectroscopy

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JO - Journal of Physics and Chemistry of Solids

JF - Journal of Physics and Chemistry of Solids

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