Abstract
We report the self-energy associated with random-phase approximation magnetic susceptibility in the hole-doped Bi₂Sr₂CuO₆ (Bi2201) and the electron-doped Nd₂₋ₓCeₓCuO₄ (NCCO) in the overdoped regime within the framework of a one-band Hubbard model. A strong weight is found in the magnetic spectrum around (π,0) at about 360 meV in Bi2201 and 640 meV in NCCO, which yields dispersion anomalies in accord with the recently observed “waterfall” effects in the cuprates.
Keywords
random-phase approximation, waterfall effects, paramagnon-induced dispersion, cuprates, Bi₂Sr₂CuO₆, Nd₂₋ₓCeₓCuO₄
Subject Categories
Hubbard model
Disciplines
Physics
Publisher
American Physical Society
Publication Date
11-16-2007
Rights Information
Copyright 2007 American Physical Society.
Rights Holder
American Physical Society
Recommended Citation
Markiewicz, R. S.; Sahrakorpi, S.; and Bansil, A., "Paramagnon-induced dispersion anomalies in the cuprates" (2007). Physics Faculty Publications. Paper 414.
Click button above to open, or right-click to save.
Notes
Originally published in Physical Review B v.76 (2007): 174514. DOI: 10.1103/PhysRevB.76.174514