Author/Authors :
Chul Kim، نويسنده , , W.S. Kyung، نويسنده , , S.R Park، نويسنده , , C.S. Leem، نويسنده , , D.J. Song، نويسنده , , Y.K. Kim، نويسنده , , S.K. Choi، نويسنده , , W.S. Jung، نويسنده , , Ingrid Y.Y. Koh، نويسنده , , H.Y. Choi، نويسنده , , Yoshiyuki Yoshida، نويسنده , , R.G. Moore، نويسنده , , Z.-X. Shen، نويسنده , , C. Kim، نويسنده ,
Abstract :
We report angle-resolved photoemission spectroscopy studies on Sr2RuO4. We observe multiple-bosonic mode coupling in the αα and ββ 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.
