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Doping dependence of the magnetic excitations in La2-xSrxCuO4.

Authors :
Meyers, D.
Miao, H.
Walters, A. C.
Bisogni, V.
Springell, R. S.
d'Astuto, M.
Dantz, M.
Pelliciari, J.
Huang, H. Y.
Okamoto, J.
Huang, D. J.
Hill, J. P.
He, X.
Božović, I.
Schmitt, T.
Dean, M. P. M.
Source :
Physical Review B. Feb2017, Vol. 95 Issue 7, p1-1. 1p.
Publication Year :
2017

Abstract

The magnetic correlations within the cuprates have undergone intense scrutiny as part of efforts to understand high-temperature superconductivity. We explore the evolution of the magnetic correlations along the nodal direction of the Brillouin zone in La2-xSrxCuO4, spanning the doping phase diagram from the antiferromagnetic Mott insulator at x=0 to the metallic phase at x=0.26. Magnetic excitations along this direction are found to be systematically softened and broadened with doping, at a higher rate than the excitations along the antinodal direction. This phenomenology is discussed in terms of the nature of the magnetism in the doped cuprates. Survival of the high-energy magnetic excitations, even in the overdoped regime, indicates that these excitations are marginal to pairing, while the influence of the low-energy excitations remains ambiguous. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
24699950
Volume :
95
Issue :
7
Database :
Academic Search Index
Journal :
Physical Review B
Publication Type :
Academic Journal
Accession number :
121850840
Full Text :
https://doi.org/10.1103/PhysRevB.95.075139