Self-energy analysis of multiple-bosonic mode coupling in Sr 2RuO4

C. Kim, Chul Kim, W. S. Kyung, S. R. Park, C. S. Leem, D. J. Song, Y. K. Kim, S. K. Choi, W. S. Jung, Y. Y. Koh, H. Y. Choi, Yoshiyuki Yoshida, R. G. Moore, Z. X. Shen

Research output: Contribution to journalArticlepeer-review

8 Scopus citations

Abstract

We report angle-resolved photoemission spectroscopy studies on Sr 2RuO4. We observe multiple-bosonic mode coupling in the α and β band dispersions. To extract the self-energy from the data for which the usual fitting methods do not work well, we propose a scheme that exploits the relation between the spectral intensity and self-energy, termed as relative self-energy. The relative self-energy obtained in that way contains important features of the self-energy. We observe not only the features that can be obtained from the band dispersions but also additional features that were not seen.

Original languageEnglish
Pages (from-to)556-558
Number of pages3
JournalJournal of Physics and Chemistry of Solids
Volume72
Issue number5
DOIs
StatePublished - May 2011
Externally publishedYes

Funding

We acknowledge helpful discussion with E. Rotenberg. This work was supported by the KICOS under Grant no. K20602000008 and A3 Foresight program through the NRF of Korea funded by MEST. C.K. acknowledges support through the BK21 Project. SSRL is operated by the DOE Office of BES.

FundersFunder number
KICOSK20602000008
NRF of Korea
Ministry of Education, Science and Technology

    Keywords

    • A. Oxides
    • C. Photoelectron spectroscopy
    • D. Electronic structure

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