Magnetic isotope effect in Bi2Sr2CaCu2O8+δ studied by high-resolution angle-resolved photoemission spectroscopy

K. Terashima; T. Sato; H. Matsui; T. Takahashi; H. Ding; T. Yamamoto; K. Kadowaki

doi:10.1016/j.physc.2007.03.329

Magnetic isotope effect in Bi₂Sr₂CaCu₂O_8+δ studied by high-resolution angle-resolved photoemission spectroscopy

K. Terashima, T. Sato, H. Matsui, T. Takahashi, H. Ding, T. Yamamoto, K. Kadowaki

研究成果: Article › 査読

抄録

We studied the impurity effect on the electronic structure near the Fermi level in Bi₂Sr₂CaCu₂O_8+δ by high-resolution angle-resolved photoemission spectroscopy to clarify the origin of dispersion kink in high-T_c superconductors. We found that the dispersion kink at off-nodal region is significantly suppressed by Zn or Ni impurity while that at the node is less affected, suggesting that electrons are strongly coupled to the spin excitations at the off-nodal region.

本文言語	English
ページ（範囲）	934-936
ページ数	3
ジャーナル	Physica C: Superconductivity and its applications
巻	460-462 II
号	SPEC. ISS.
DOI	https://doi.org/10.1016/j.physc.2007.03.329
出版ステータス	Published - 2007 9月 1

ASJC Scopus subject areas

電子材料、光学材料、および磁性材料
凝縮系物理学
エネルギー工学および電力技術
電子工学および電気工学

文献へのアクセス

10.1016/j.physc.2007.03.329

他のファイルとリンク

引用スタイル

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title = "Magnetic isotope effect in Bi2Sr2CaCu2O8+δ studied by high-resolution angle-resolved photoemission spectroscopy",

abstract = "We studied the impurity effect on the electronic structure near the Fermi level in Bi2Sr2CaCu2O8+δ by high-resolution angle-resolved photoemission spectroscopy to clarify the origin of dispersion kink in high-Tc superconductors. We found that the dispersion kink at off-nodal region is significantly suppressed by Zn or Ni impurity while that at the node is less affected, suggesting that electrons are strongly coupled to the spin excitations at the off-nodal region.",

keywords = "ARPES, Impurity, Superconductor",

author = "K. Terashima and T. Sato and H. Matsui and T. Takahashi and H. Ding and T. Yamamoto and K. Kadowaki",

note = "Funding Information: This work is supported by JST-CREST, and MEXT of Japan. K.T. and H.M. thank JSPS for financial support. ",

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T1 - Magnetic isotope effect in Bi2Sr2CaCu2O8+δ studied by high-resolution angle-resolved photoemission spectroscopy

AU - Terashima, K.

AU - Sato, T.

AU - Matsui, H.

AU - Takahashi, T.

AU - Ding, H.

AU - Yamamoto, T.

AU - Kadowaki, K.

N1 - Funding Information: This work is supported by JST-CREST, and MEXT of Japan. K.T. and H.M. thank JSPS for financial support.

PY - 2007/9/1

Y1 - 2007/9/1

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AB - We studied the impurity effect on the electronic structure near the Fermi level in Bi2Sr2CaCu2O8+δ by high-resolution angle-resolved photoemission spectroscopy to clarify the origin of dispersion kink in high-Tc superconductors. We found that the dispersion kink at off-nodal region is significantly suppressed by Zn or Ni impurity while that at the node is less affected, suggesting that electrons are strongly coupled to the spin excitations at the off-nodal region.

KW - ARPES

KW - Impurity

KW - Superconductor

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