Self energy effects in the cuprates

T. Timusk; J. Hwang

doi:10.1117/12.618356

30 August 2005 Self energy effects in the cuprates

T. Timusk, J. Hwang

Proceedings Volume 5932, Strongly Correlated Electron Materials: Physics and Nanoengineering; 59320J (2005) https://doi.org/10.1117/12.618356
Event: Optics and Photonics 2005, 2005, San Diego, California, United States

Abstract

Optical spectroscopy and angle resolved photoemission have replaced tunneling spectroscopy as techniques that yield the best data on the self energy of the charge carriers in new superconductors. We review the most recent results of self-energy spectroscopy for several cuprate superconductors. We show that the self energy is determined by two channels of bosonic excitations, a sharp peak and a continuous background. Both channels appear to be of magnetic origin, the sharp mode is associated with the so-called 41 meV neutron resonance that appears only at low temperatures, a few tens of degrees above the superconducting transition temperature in underdoped materials, while the continuous background has a temperature independent spectral function.

Citation Download Citation

T. Timusk and J. Hwang "Self energy effects in the cuprates", Proc. SPIE 5932, Strongly Correlated Electron Materials: Physics and Nanoengineering, 59320J (30 August 2005); https://doi.org/10.1117/12.618356

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