Photoemission spectral weight transfer and mass renormalization in the Fermi-liquid system La1-xSrxTiO3+y/2

T. Yoshida*, A. Ino, T. Mizokawa, A. Fujimori, Y. Taguchi, T. Katsufuji, Y. Tokura

*この研究の対応する著者

研究成果: Article査読

35 被引用数 (Scopus)

抄録

We have performed a photoemission study of La1-xSrxTiO3+y/2 near the filling-control metal-insulator transition (MIT) as a function of hole doping. The spectral intensity at the chemical potential (μ) and the mass enhancement factor deduced from the bandwidth show qualitatively the same doping dependence as the specific coefficient γ except for near the MIT, where additional mass renormalization may occur in the vicinity of μ. Upon antiferromagnetic ordering, spectral weight transfer occurs from the coherent to the incoherent parts, which we associate with the partial gap opening at μ.

本文言語English
ページ(範囲)258-264
ページ数7
ジャーナルEPL
59
2
DOI
出版ステータスPublished - 2002
外部発表はい

ASJC Scopus subject areas

  • 物理学および天文学一般

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