Systematic doping evolution of the underlying Fermi surface of La2-xSrxCuO4

By T. Yoshida, X. Zhou, K. Tanaka, Wanli Yang, Z. Hussain, Zhi-xun Shen, A. Fujimori, S. Sahrakorpi, M. Lindroos, R. Markiewicz and 6 more. 2005

185 citations recorded by the source corpus.

We have performed a systematic doping-dependent study of ${\mathrm{La}}_{2\ensuremath{-}x}{\mathrm{Sr}}_{x}\mathrm{Cu}{\mathrm{O}}_{4}$ (LSCO) $(0.03\ensuremath{\leqslant}x\ensuremath{\leqslant}0.3)$ by angle-resolved photoemission spectroscopy. Over this entire doping range, the underlying ``Fermi surface'' determined from the low-energy spectral weight approximately satisfies Luttinger's theorem, even down to the lightly doped region. This is in strong contrast to the results on ${\mathrm{Ca}}_{2\ensuremath{-}x}{\mathrm{Na}}_{x}\mathrm{Cu}{\mathrm{O}}_{2}{\mathrm{Cl}}_{2}$ (Na-CCOC), which show a clear deviation from Luttinger's theorem. We correlate these differences between LSCO and Na-CCOC with differences in the behavior of chemical potential shift and spectral weight transfer induced by hole doping.

Subfields: Condensed Matter Physics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/7c870bdfd7604739375a6c08c847687cc6caf47b