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Title
Japanese: 
English:Origin of the Anomalous Mass Renormalization in Metallic Quantum Well States of Strongly Correlated Oxide SrVO3 
Author
Japanese: 小林正起, 吉松 公平, 坂井 延寿, 北村未歩, 堀場弘司, 藤森 淳, 組頭 広志.  
English: Masaki Kobayashi, Kohei Yoshimatsu, Enju Sakai, Miho Kitamura, Koji Horiba, Atsushi Fujimori, Hiroshi Kumigashira.  
Language English 
Journal/Book name
Japanese: 
English:PHYSICAL REVIEW LETTERS 
Volume, Number, Page Vol. 115    7    076801
Published date Aug. 13, 2015 
Publisher
Japanese: 
English:American Physical Society 
Conference name
Japanese: 
English: 
Conference site
Japanese: 
English: 
DOI https://doi.org/10.1103/PhysRevLett.115.076801
Abstract 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-onedimensional character of confined V 3d states as a result of their orbital-selective quantization.

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