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An angle-resolved photoemission spectral function analysis of the electron doped cuprate Nd_1.85Ce_0.15CuO_4 | | N.P. Armitage
; D.H. Lu
; C. Kim
; A. Damascelli
; K.M. Shen
; F. Ronning
; D.L. Feng
; P. Bogdanov
; X.J. Zhou
; W.L. Yang
; Z. Hussain
; P.K. Mang
; N. Kaneko
; M. Greven
; Y. Onose
; Y. Taguchi
; Y. Tokura
; Z.-X. Shen
; | | Date: |
9 Dec 2002 | | Subject: | Superconductivity; Strongly Correlated Electrons | cond-mat.supr-con cond-mat.str-el | | Affiliation: | UCLA, Stanford), D.H. Lu, C. Kim (SSRL), A. Damascelli, K.M. Shen, F. Ronning, D.L. Feng, P. Bogdanov (Stanford), X.J. Zhou, W.L. Yang, Z. Hussain (ALS), P.K. Mang, N. Kaneko, M. Greven (Stanford), Y. Onose, Y. Taguchi, Y. Tokura (Tokyo), and Z.-X. She | | Abstract: | Using methods made possible by recent advances in photoemission technology, we perform an indepth line-shape analysis of the angle-resolved photoemission spectra of the electron doped (n-type) cuprate superconductor Nd_1.85Ce_0.15CuO_4. Unlike for the p-type materials, we only observe weak mass renormalizations near 50-70 meV. This may be indicative of smaller electron-phonon coupling or due to the masking effects of other interactions that make the electron-phonon coupling harder to detect. This latter scenario may suggest limitations of the spectral function analysis in extracting electronic self-energies when some of the interactions are highly momentum dependent. | | Source: | arXiv, cond-mat/0212172 | | Services: | Forum | Review | PDF | Favorites | |
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