Universality of low-energy mass renormalization in the superconducting state of hole-doped high-T c superconductors

Takafumi Sato; Kensei Terashima; Kosuke Nakayama; Hiroaki Matsui; Takashi Takahashi; Kazuo Kadowaki; Maiko Kofu; Kazuma Hirota

doi:10.1143/JPSJ.76.103707

Universality of low-energy mass renormalization in the superconducting state of hole-doped high-T _c superconductors

Takafumi Sato, Kensei Terashima, Kosuke Nakayama, Hiroaki Matsui, Takashi Takahashi, Kazuo Kadowaki, Maiko Kofu, Kazuma Hirota

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

4 Citations (Scopus)

Abstract

We have performed high-resolution angle-resolved photoemission spectroscopy on high-T _c superconductors La _1.85Sr _0.15CuO ₄ (LSCO) and Bi ₂Sr ₂CaCu ₂O _8+δ (Bi2212) to study the universality of manybody interaction in hole-doped high-Tc superconductors. We found that the emergence of kink in the dispersion in the off-nodal region at the superconducting state is a common feature, while the energy scale of kink is remarkably different between LSCO and Bi2212. We conclude that the coupling of electrons with spin excitations at the off-nodal region is universal in hole-doped high-T _c cuprates.

Original language	English
Article number	103707
Journal	journal of the physical society of japan
Volume	76
Issue number	10
DOIs	https://doi.org/10.1143/JPSJ.76.103707
Publication status	Published - Oct 2007
Externally published	Yes

Keywords

ARPES
Cuprate
Electronic structure
Superconductivity

ASJC Scopus subject areas

Physics and Astronomy(all)

Access to Document

10.1143/JPSJ.76.103707

Cite this

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title = "Universality of low-energy mass renormalization in the superconducting state of hole-doped high-T c superconductors",

abstract = "We have performed high-resolution angle-resolved photoemission spectroscopy on high-T c superconductors La 1.85Sr 0.15CuO 4 (LSCO) and Bi 2Sr 2CaCu 2O 8+δ (Bi2212) to study the universality of manybody interaction in hole-doped high-Tc superconductors. We found that the emergence of kink in the dispersion in the off-nodal region at the superconducting state is a common feature, while the energy scale of kink is remarkably different between LSCO and Bi2212. We conclude that the coupling of electrons with spin excitations at the off-nodal region is universal in hole-doped high-T c cuprates.",

keywords = "ARPES, Cuprate, Electronic structure, Superconductivity",

author = "Takafumi Sato and Kensei Terashima and Kosuke Nakayama and Hiroaki Matsui and Takashi Takahashi and Kazuo Kadowaki and Maiko Kofu and Kazuma Hirota",

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T1 - Universality of low-energy mass renormalization in the superconducting state of hole-doped high-T c superconductors

AU - Sato, Takafumi

AU - Terashima, Kensei

AU - Nakayama, Kosuke

AU - Matsui, Hiroaki

AU - Takahashi, Takashi

AU - Kadowaki, Kazuo

AU - Kofu, Maiko

AU - Hirota, Kazuma

PY - 2007/10

Y1 - 2007/10

N2 - We have performed high-resolution angle-resolved photoemission spectroscopy on high-T c superconductors La 1.85Sr 0.15CuO 4 (LSCO) and Bi 2Sr 2CaCu 2O 8+δ (Bi2212) to study the universality of manybody interaction in hole-doped high-Tc superconductors. We found that the emergence of kink in the dispersion in the off-nodal region at the superconducting state is a common feature, while the energy scale of kink is remarkably different between LSCO and Bi2212. We conclude that the coupling of electrons with spin excitations at the off-nodal region is universal in hole-doped high-T c cuprates.

AB - We have performed high-resolution angle-resolved photoemission spectroscopy on high-T c superconductors La 1.85Sr 0.15CuO 4 (LSCO) and Bi 2Sr 2CaCu 2O 8+δ (Bi2212) to study the universality of manybody interaction in hole-doped high-Tc superconductors. We found that the emergence of kink in the dispersion in the off-nodal region at the superconducting state is a common feature, while the energy scale of kink is remarkably different between LSCO and Bi2212. We conclude that the coupling of electrons with spin excitations at the off-nodal region is universal in hole-doped high-T c cuprates.

KW - ARPES

KW - Cuprate

KW - Electronic structure

KW - Superconductivity

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