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

研究成果: Article査読

4 被引用数 (Scopus)

抄録

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.

本文言語English
論文番号103707
ジャーナルjournal of the physical society of japan
76
10
DOI
出版ステータスPublished - 2007 10 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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