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Electron scattering, charge order, and pseudogap physics in ${\mathrm{La}}_{1.6{-}x}{\mathrm{Nd}}_{0.4}{\mathrm{Sr}}_{x}{\mathrm{CuO}}_{4}$: An angle-resolved photoemission spectroscopy study


Matt, C E; Fatuzzo, C G; Sassa, Y; Månsson, M; Fatale, S; Bitetta, V; Shi, X; Pailhès, S; Berntsen, M H; Kurosawa, T; Oda, M; Momono, N; Lipscombe, O J; Hayden, S M; Yan, J-Q; Zhou, J-S; Goodenough, J B; Pyon, S; Takayama, T; Takagi, H; Patthey, L; Bendounan, A; Razzoli, E; Shi, M; Plumb, N C; Radovic, M; Grioni, M; Mesot, J; Tjernberg, O; Chang, J (2015). Electron scattering, charge order, and pseudogap physics in ${\mathrm{La}}_{1.6{-}x}{\mathrm{Nd}}_{0.4}{\mathrm{Sr}}_{x}{\mathrm{CuO}}_{4}$: An angle-resolved photoemission spectroscopy study. Physical Review B, 92(13):online.

Abstract

We report an angle-resolved photoemission study of the charge stripe ordered ${\mathrm{La}}_{1.6{-}x}{\mathrm{Nd}}_{0.4}{\mathrm{Sr}}_{x}{\mathrm{CuO}}_{4}$ (Nd-LSCO) 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 antinodal 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 line shape 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.

Abstract

We report an angle-resolved photoemission study of the charge stripe ordered ${\mathrm{La}}_{1.6{-}x}{\mathrm{Nd}}_{0.4}{\mathrm{Sr}}_{x}{\mathrm{CuO}}_{4}$ (Nd-LSCO) 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 antinodal 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 line shape 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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Additional indexing

Item Type:Journal Article, refereed, original work
Communities & Collections:07 Faculty of Science > Physics Institute
Dewey Decimal Classification:530 Physics
Language:English
Date:2015
Deposited On:25 Jan 2016 14:27
Last Modified:05 Apr 2016 19:55
Publisher:American Physical Society
ISSN:1098-0121
Publisher DOI:https://doi.org/10.1103/PhysRevB.92.134524

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