Magnetic fluctuations in La1.95Ba0.05CuO4

S.M. Hayden; G. Aeppli; H. Mook; D. Rytz; M.F. Hundley; Z. Fisk

doi:10.1103/PhysRevLett.66.821

Magnetic fluctuations in La₁_.₉₅Ba₀_.₀₅CuO4

S.M. Hayden, G. Aeppli, H. Mook, D. Rytz, M.F. Hundley, Z. Fisk

Research output: Contribution to journal › Journal article › Research

Abstract

Neutron-scattering and resistivity experiments on single crystals of La1.95Ba0.05CuO4 are described. On warming to as high as 250 K, the correlation length does not change, and the temperature dependence of the generalized susceptibility chi(Q, omega) is due solely to the temperature dependence of the local response. We show that the associated relaxation rate in the metallic regime is h-GAMMA approximately-equals 1/2 k(B)T, in accord with the marginal-Fermi-liquid hypothesis, and relate our results to nuclear spin-lattice relaxation data.

Original language	English
Journal	Physical Review Letters
Volume	66
Issue number	6
Pages (from-to)	821-824
ISSN	0031-9007
DOIs	https://doi.org/10.1103/PhysRevLett.66.821
Publication status	Published - 1991

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title = "Magnetic fluctuations in La1.95Ba0.05CuO4",

abstract = "Neutron-scattering and resistivity experiments on single crystals of La1.95Ba0.05CuO4 are described. On warming to as high as 250 K, the correlation length does not change, and the temperature dependence of the generalized susceptibility chi(Q, omega) is due solely to the temperature dependence of the local response. We show that the associated relaxation rate in the metallic regime is h-GAMMA approximately-equals 1/2 k(B)T, in accord with the marginal-Fermi-liquid hypothesis, and relate our results to nuclear spin-lattice relaxation data. ",

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T1 - Magnetic fluctuations in La1.95Ba0.05CuO4

AU - Hayden, S.M.

AU - Aeppli, G.

AU - Mook, H.

AU - Rytz, D.

AU - Hundley, M.F.

AU - Fisk, Z.

PY - 1991

Y1 - 1991

N2 - Neutron-scattering and resistivity experiments on single crystals of La1.95Ba0.05CuO4 are described. On warming to as high as 250 K, the correlation length does not change, and the temperature dependence of the generalized susceptibility chi(Q, omega) is due solely to the temperature dependence of the local response. We show that the associated relaxation rate in the metallic regime is h-GAMMA approximately-equals 1/2 k(B)T, in accord with the marginal-Fermi-liquid hypothesis, and relate our results to nuclear spin-lattice relaxation data.

AB - Neutron-scattering and resistivity experiments on single crystals of La1.95Ba0.05CuO4 are described. On warming to as high as 250 K, the correlation length does not change, and the temperature dependence of the generalized susceptibility chi(Q, omega) is due solely to the temperature dependence of the local response. We show that the associated relaxation rate in the metallic regime is h-GAMMA approximately-equals 1/2 k(B)T, in accord with the marginal-Fermi-liquid hypothesis, and relate our results to nuclear spin-lattice relaxation data.

KW - Materialers atomare struktur og egenskaber

U2 - 10.1103/PhysRevLett.66.821

DO - 10.1103/PhysRevLett.66.821

M3 - Journal article

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VL - 66

SP - 821

EP - 824

JO - Physical Review Letters

JF - Physical Review Letters

IS - 6