Magnetic Interactions in Co3O4

D. Scheerlinck; S. Hautecler

doi:10.1002/pssb.2220730120

Magnetic Interactions in Co₃O₄

D. Scheerlinck, S. Hautecler

Research output › peer-review

Abstract

Co₃O₄ is a normal spinel with only A‐A interactions which becomes antiferromagnetic at T_N ≈ 40 K. The exchange integrals between one ion and its first and second neighbours are derived from the second moment of energy distributions of neutrons scattered by a polycrystalline sample in its paramagnetic state (155 K) and from a Green's function analysis of T_N. The result, J₁/k_B = −(7.27 ± 0.25) K and |J₂|/k_B < 0.3 K, indicates that the interaction with the nearest neighbours is by far dominant.

Original language	English
Pages (from-to)	223-228
Number of pages	6
Journal	Physica Status Solidi (B)
Volume	73
Issue number	1
DOIs	https://doi.org/10.1002/pssb.2220730120
State	Published - 1 Jan 1976

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1002/pssb.2220730120

Cite this

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abstract = "Co3O4 is a normal spinel with only A‐A interactions which becomes antiferromagnetic at TN ≈ 40 K. The exchange integrals between one ion and its first and second neighbours are derived from the second moment of energy distributions of neutrons scattered by a polycrystalline sample in its paramagnetic state (155 K) and from a Green's function analysis of TN. The result, J1/kB = −(7.27 ± 0.25) K and |J2|/kB < 0.3 K, indicates that the interaction with the nearest neighbours is by far dominant.",

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N2 - Co3O4 is a normal spinel with only A‐A interactions which becomes antiferromagnetic at TN ≈ 40 K. The exchange integrals between one ion and its first and second neighbours are derived from the second moment of energy distributions of neutrons scattered by a polycrystalline sample in its paramagnetic state (155 K) and from a Green's function analysis of TN. The result, J1/kB = −(7.27 ± 0.25) K and |J2|/kB < 0.3 K, indicates that the interaction with the nearest neighbours is by far dominant.

AB - Co3O4 is a normal spinel with only A‐A interactions which becomes antiferromagnetic at TN ≈ 40 K. The exchange integrals between one ion and its first and second neighbours are derived from the second moment of energy distributions of neutrons scattered by a polycrystalline sample in its paramagnetic state (155 K) and from a Green's function analysis of TN. The result, J1/kB = −(7.27 ± 0.25) K and |J2|/kB < 0.3 K, indicates that the interaction with the nearest neighbours is by far dominant.

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