Extraction of the electron self-energy from angle-resolved photoemission data: Application to Bi2Sr2CaCu2O8+x

Authors
Norman, MR Ding, H Fretwell, H Randeria, M Campuzano, JC
Citation
Mr. Norman et al., Extraction of the electron self-energy from angle-resolved photoemission data: Application to Bi2Sr2CaCu2O8+x, PHYS REV B, 60(10), 1999, pp. 7585-7590
Citations number
26
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B-CONDENSED MATTER
ISSN journal
01631829 → ACNP
Volume
60
Issue
10
Year of publication
1999
Pages
7585 - 7590
Database
ISI
SICI code
0163-1829(19990901)60:10<7585:EOTESF>2.0.ZU;2-S
Abstract
The self-energy Sigma(k, omega), the fundamental function that describes th e effects of many-body interactions on an electron in a solid, is usually d ifficult to obtain directly from experimental data. In this paper we show t hat by making certain reasonable assumptions, the self-energy can be direct ly determined from angle-resolved photoemission data. We demonstrate this m ethod on data for the high-temperature superconductor Bi2Sr2CaCu2O8+x in th e normal, superconducting, and pseudogap phases. [S0163-1829(99)13433-7].