Non-fermi-liquid behavior of quasi-one-dimensional pseudogap materials |
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Authors: | Bartosch Lorenz |
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Affiliation: | Institut für Theoretische Physik, Universit?t Frankfurt, Robert-Mayer-Strasse 8, 60054 Frankfurt, Germany. |
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Abstract: | We study the spectral function of the pseudogap phase of quasi-one-dimensional charge density wave materials. Using a stochastic approach and emphasizing an exact treatment of non-Gaussian order parameter fluctuations we will go beyond a usual perturbative calculation. Our results give a good fit to angle-resolved photoemission spectroscopy data and explain the absence of the Fermi edge in charge density wave materials even above the Peierls transition, indicating non-Fermi-liquid behavior. |
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