Analysis of the spectral function of Nd1.85 Ce0.15 CuO4 obtained by angle-resolved photoemission spectroscopy

F. Schmitt; W. S. Lee; D. H. Lu; W. Meevasana; E. Motoyama; M. Greven; Z. X. Shen

doi:10.1103/PhysRevB.78.100505

Analysis of the spectral function of Nd1.85 Ce0.15 CuO4 obtained by angle-resolved photoemission spectroscopy

F. Schmitt, W. S. Lee, D. H. Lu, W. Meevasana, E. Motoyama, M. Greven, Z. X. Shen

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Abstract

Samples of Nd2-x Cex CuO4, an electron-doped high-temperature superconducting cuprate, near optimal doping at x=0.155 were measured via angle-resolved photoemission. We report a renormalization feature in the self-energy ("kink") in the band dispersion at ≈50-60 meV present in nodal and antinodal cuts across the Fermi surface. Specifically, while the kink had been seen in the antinodal region, it is now observed also in the nodal region, reminiscent of what has been observed in hole-doped cuprates.

Original language	English (US)
Article number	100505
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	78
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevB.78.100505
State	Published - Sep 15 2008
Externally published	Yes

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title = "Analysis of the spectral function of Nd1.85 Ce0.15 CuO4 obtained by angle-resolved photoemission spectroscopy",

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T1 - Analysis of the spectral function of Nd1.85 Ce0.15 CuO4 obtained by angle-resolved photoemission spectroscopy

AU - Schmitt, F.

AU - Lee, W. S.

AU - Lu, D. H.

AU - Meevasana, W.

AU - Motoyama, E.

AU - Greven, M.

AU - Shen, Z. X.

PY - 2008/9/15

Y1 - 2008/9/15

N2 - Samples of Nd2-x Cex CuO4, an electron-doped high-temperature superconducting cuprate, near optimal doping at x=0.155 were measured via angle-resolved photoemission. We report a renormalization feature in the self-energy ("kink") in the band dispersion at ≈50-60 meV present in nodal and antinodal cuts across the Fermi surface. Specifically, while the kink had been seen in the antinodal region, it is now observed also in the nodal region, reminiscent of what has been observed in hole-doped cuprates.

AB - Samples of Nd2-x Cex CuO4, an electron-doped high-temperature superconducting cuprate, near optimal doping at x=0.155 were measured via angle-resolved photoemission. We report a renormalization feature in the self-energy ("kink") in the band dispersion at ≈50-60 meV present in nodal and antinodal cuts across the Fermi surface. Specifically, while the kink had been seen in the antinodal region, it is now observed also in the nodal region, reminiscent of what has been observed in hole-doped cuprates.

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Analysis of the spectral function of Nd1.85 Ce0.15 CuO4 obtained by angle-resolved photoemission spectroscopy

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