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Condensed Matter Seminars

ics Condensed Matter
Thursday, February 18, 2010
4:00 PM
Physics Building, Room 204
Note special time.
Note special room.
Maxim Khodas [Host: Israel Klich ]
"Effect of order parameter fluctuations on the spectral density in d-wave superconductors"
 Slideshow (PDF)
My talk contains two related parts. In the first part I will discuss the spectral density in 2D d-wave superconductors in the regime of strong quantum fluctuations. I will start with the motivation based on Angular Resolved Photo- Emission Experiments. The theoretical model is then presented to capture the effects of phase fluctuations without specifying the (unknown) paring mechanism. I discuss the solution of the model and give results for the spectral function. In the second part I will discuss the Fermi Surface Reconstruction and underlying mechanism related to the anti-ferromagnetic fluctuations. I will show how the pockets obtained on the mean field level are modified by the fluctuations of the staggered magnetization. Finally, I would conclude with a short summary.

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