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Electron scattering, charge order, and pseudogap physics in La1.6-xNd0.4SrxCuO4: An angle-resolved photoemission spectroscopy study

Abstract : We report an angle-resolved photoemission study of the charge stripe ordered La1.6−xNd0.4SrxCuO4 system. A comparative and quantitative line shape analysis is presented as the system evolves from the overdoped regime into the charge ordered phase. On the overdoped side (x = 0.20), a normal state anti-nodal spectral gap opens upon cooling below 80 K. In this process spectral weight is preserved but redistributed to larger energies. A correlation between this spectral gap and electron scattering is found. A different lineshape is observed in the antinodal region of charge ordered Nd-LSCO x = 1/8. Significant low-energy spectral weight appears to be lost. These observations are discussed in terms of spectral weight redistribution and gapping originating from charge stripe ordering.
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C. E. Matt, C. G. Fatuzzo, Y. Sassa, M. Mansson, S. Fatale, et al.. Electron scattering, charge order, and pseudogap physics in La1.6-xNd0.4SrxCuO4: An angle-resolved photoemission spectroscopy study. Physical Review B: Condensed Matter and Materials Physics (1998-2015), American Physical Society, 2015, 92, pp.134524. ⟨10.1103/PhysRevB.92.134524⟩. ⟨hal-02307279⟩

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