Néel transition and sublattice magnetization of pure and doped La2CuO4

B. Keimer; A. Aharony; A. Auerbach; R. J. Birgeneau; A. Cassanho; Y. Endoh; R. W. Erwin; M. A. Kastner; G. Shirane

doi:10.1103/PhysRevB.45.7430

Néel transition and sublattice magnetization of pure and doped La2CuO4

B. Keimer, A. Aharony, A. Auerbach, R. J. Birgeneau, A. Cassanho, Y. Endoh, R. W. Erwin, M. A. Kastner, G. Shirane

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Abstract

We have measured the sublattice magnetization of stoichiometric La2CuO4 (TN=325 K) and La2Cu0.95Zn0.05O4 (TN=157 K). We discuss the data for La2CuO4 and other lamellar copper oxides in terms of the quantum Heisenberg model including weak XY anisotropy and interlayer coupling. Spin-wave theory and a generalized Schwinger-boson mean-field theory are used to predict the ordered moment as a function of temperature without adjustable parameters. We also discuss the influence of different dopants on the Néel temperature and sublattice magnetization.

Original language	English
Pages (from-to)	7430-7435
Number of pages	6
Journal	Physical Review B
Volume	45
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevB.45.7430
State	Published - 1 Jan 1992
Externally published	Yes

ASJC Scopus subject areas

Condensed Matter Physics

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title = "N{\'e}el transition and sublattice magnetization of pure and doped La2CuO4",

abstract = "We have measured the sublattice magnetization of stoichiometric La2CuO4 (TN=325 K) and La2Cu0.95Zn0.05O4 (TN=157 K). We discuss the data for La2CuO4 and other lamellar copper oxides in terms of the quantum Heisenberg model including weak XY anisotropy and interlayer coupling. Spin-wave theory and a generalized Schwinger-boson mean-field theory are used to predict the ordered moment as a function of temperature without adjustable parameters. We also discuss the influence of different dopants on the N{\'e}el temperature and sublattice magnetization.",

author = "B. Keimer and A. Aharony and A. Auerbach and Birgeneau, {R. J.} and A. Cassanho and Y. Endoh and Erwin, {R. W.} and Kastner, {M. A.} and G. Shirane",

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doi = "10.1103/PhysRevB.45.7430",

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T1 - Néel transition and sublattice magnetization of pure and doped La2CuO4

AU - Keimer, B.

AU - Aharony, A.

AU - Auerbach, A.

AU - Birgeneau, R. J.

AU - Cassanho, A.

AU - Endoh, Y.

AU - Erwin, R. W.

AU - Kastner, M. A.

AU - Shirane, G.

PY - 1992/1/1

Y1 - 1992/1/1

N2 - We have measured the sublattice magnetization of stoichiometric La2CuO4 (TN=325 K) and La2Cu0.95Zn0.05O4 (TN=157 K). We discuss the data for La2CuO4 and other lamellar copper oxides in terms of the quantum Heisenberg model including weak XY anisotropy and interlayer coupling. Spin-wave theory and a generalized Schwinger-boson mean-field theory are used to predict the ordered moment as a function of temperature without adjustable parameters. We also discuss the influence of different dopants on the Néel temperature and sublattice magnetization.

AB - We have measured the sublattice magnetization of stoichiometric La2CuO4 (TN=325 K) and La2Cu0.95Zn0.05O4 (TN=157 K). We discuss the data for La2CuO4 and other lamellar copper oxides in terms of the quantum Heisenberg model including weak XY anisotropy and interlayer coupling. Spin-wave theory and a generalized Schwinger-boson mean-field theory are used to predict the ordered moment as a function of temperature without adjustable parameters. We also discuss the influence of different dopants on the Néel temperature and sublattice magnetization.

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VL - 45

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EP - 7435

JO - Physical Review B

JF - Physical Review B

IS - 13

ER -

Néel transition and sublattice magnetization of pure and doped La2CuO4

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