Origin of the Anomalous Mass Renormalization in Metallic Quantum Well States of Strongly Correlated Oxide SrVO3

Masaki Kobayashi, Kohei Yoshimatsu, Enju Sakai, Miho Kitamura, Koji Horiba, Atsushi Fujimori, Hiroshi Kumigashira

研究成果: Article査読

14 被引用数 (Scopus)

抄録

In situ angle-resolved photoemission spectroscopy (ARPES) has been performed on SrVO3 ultrathin films, which show metallic quantum well (QW) states, to unveil the origin of the anomalous mass enhancement in the QW subbands. The line-shape analysis of the ARPES spectra reveals that the strength of the electron correlation increases as the subband bottom energy approaches the Fermi level. These results indicate that the anomalous subband-dependent mass enhancement mainly arises from the quasi-one-dimensional character of confined V 3d states as a result of their orbital-selective quantization.

本文言語English
論文番号076801
ジャーナルPhysical review letters
115
7
DOI
出版ステータスPublished - 2015 8 13
外部発表はい

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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