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Doping-dependent optical properties of Bi2201

Meevasana, W
Eisaki, H
Published in New Journal of Physics. 2009, vol. 11, no. 5, p. 055067
Abstract An experimental study of the in-plane optical conductivity of (Pbx,Bi2−x)(LaySr2−y)CuO6 (Bi2201) is presented for a broad doping and temperature range. The in-plane conductivity is analyzed within a strong coupling formalism. We address the interrelationship between the optical conductivity, the single particle self-energy and the electron–boson spectral function. We find that the frequency and temperature dependence can be well described within this formalism. We present a universal description of optical, angle resolved photoemission spectroscopy (ARPES) and tunneling spectra. The full frequency and temperature dependence of the optical spectra and single particle self-energy is shown to result from an electron–boson spectral function, which shows a strong doping dependence and weak temperature dependence.
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VAN HEUMEN, Erik et al. Doping-dependent optical properties of Bi2201. In: New Journal of Physics, 2009, vol. 11, n° 5, p. 055067. doi: 10.1088/1367-2630/11/5/055067 https://archive-ouverte.unige.ch/unige:16473

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Deposited on : 2011-06-28

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