Ferromagnetic moment and spin rotation transitions in tetragonal antiferromagnetic Sr2Cu3O4Cl2

F. C. Chou; Amnon Aharony; R. J. Birgeneau; O. Entin-Wohlman; M. Greven; A. B. Harris; M. A. Kastner; Y. J. Kim; D. S. Kleinberg; Y. S. Lee; Q. Zhu

doi:10.1103/PhysRevLett.78.535

Ferromagnetic moment and spin rotation transitions in tetragonal antiferromagnetic Sr₂Cu₃O₄Cl₂

F. C. Chou, Amnon Aharony, R. J. Birgeneau, O. Entin-Wohlman, M. Greven, A. B. Harris, M. A. Kastner, Y. J. Kim, D. S. Kleinberg, Y. S. Lee, Q. Zhu

Physics and Astronomy (Twin Cities)

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63 Scopus citations

Abstract

Sr₂Cu₃O₄Cl₂ is a variant of the lamellar copper oxides, containing an extra Cu²⁺ ion in the center of every second plaquette of the square CuO₂ lattice. The two types of Cu form interpenetrating Heisenberg antiferromagnets, which order at 380 and 40 K. Magnetization measurements yield a small spontaneous ferromagnetic moment below 380 K and two spin rotation transitions. The results are explained in detail by a pseudodipolar coupling between the two Cu lattices. A quantitative analysis of the data yields several previously unknown microscopic coupling constants, relevant to other lamellar, chain, and ladder copper oxides.

Original language	English (US)
Pages (from-to)	535-538
Number of pages	4
Journal	Physical review letters
Volume	78
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevLett.78.535
State	Published - Jan 20 1997

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title = "Ferromagnetic moment and spin rotation transitions in tetragonal antiferromagnetic Sr2Cu3O4Cl2",

abstract = "Sr2Cu3O4Cl2 is a variant of the lamellar copper oxides, containing an extra Cu2+ ion in the center of every second plaquette of the square CuO2 lattice. The two types of Cu form interpenetrating Heisenberg antiferromagnets, which order at 380 and 40 K. Magnetization measurements yield a small spontaneous ferromagnetic moment below 380 K and two spin rotation transitions. The results are explained in detail by a pseudodipolar coupling between the two Cu lattices. A quantitative analysis of the data yields several previously unknown microscopic coupling constants, relevant to other lamellar, chain, and ladder copper oxides.",

author = "Chou, {F. C.} and Amnon Aharony and Birgeneau, {R. J.} and O. Entin-Wohlman and M. Greven and Harris, {A. B.} and Kastner, {M. A.} and Kim, {Y. J.} and Kleinberg, {D. S.} and Lee, {Y. S.} and Q. Zhu",

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T1 - Ferromagnetic moment and spin rotation transitions in tetragonal antiferromagnetic Sr2Cu3O4Cl2

AU - Chou, F. C.

AU - Aharony, Amnon

AU - Birgeneau, R. J.

AU - Entin-Wohlman, O.

AU - Greven, M.

AU - Harris, A. B.

AU - Kastner, M. A.

AU - Kim, Y. J.

AU - Kleinberg, D. S.

AU - Lee, Y. S.

AU - Zhu, Q.

PY - 1997/1/20

Y1 - 1997/1/20

N2 - Sr2Cu3O4Cl2 is a variant of the lamellar copper oxides, containing an extra Cu2+ ion in the center of every second plaquette of the square CuO2 lattice. The two types of Cu form interpenetrating Heisenberg antiferromagnets, which order at 380 and 40 K. Magnetization measurements yield a small spontaneous ferromagnetic moment below 380 K and two spin rotation transitions. The results are explained in detail by a pseudodipolar coupling between the two Cu lattices. A quantitative analysis of the data yields several previously unknown microscopic coupling constants, relevant to other lamellar, chain, and ladder copper oxides.

AB - Sr2Cu3O4Cl2 is a variant of the lamellar copper oxides, containing an extra Cu2+ ion in the center of every second plaquette of the square CuO2 lattice. The two types of Cu form interpenetrating Heisenberg antiferromagnets, which order at 380 and 40 K. Magnetization measurements yield a small spontaneous ferromagnetic moment below 380 K and two spin rotation transitions. The results are explained in detail by a pseudodipolar coupling between the two Cu lattices. A quantitative analysis of the data yields several previously unknown microscopic coupling constants, relevant to other lamellar, chain, and ladder copper oxides.

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Ferromagnetic moment and spin rotation transitions in tetragonal antiferromagnetic Sr₂Cu₃O₄Cl₂

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