Magnetism in BaCoS2

D. Mandrus; J. L. Sarrao; B. C. Chakoumakos; J. A. Fernandez-Baca; S. E. Nagler; B. C. Sales

doi:10.1063/1.365182

Magnetism in BaCoS₂

D. Mandrus, J. L. Sarrao, B. C. Chakoumakos, J. A. Fernandez-Baca, S. E. Nagler, B. C. Sales

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Abstract

BaCoS₂ is a layered Mott-Hubbard insulator that orders antiferromagnetically near 300 K. We report magnetic susceptibility measurements on polycrystalline BaCoS₂ from 77 to 800 K. and in-and out-of-plane measurements on single crystals from 2 to 350 K. We also report a powder neutron refinement of the magnetic structure of BaCoS₂. The neutron measurements indicate that the moments lie in the plane, and that the magnetic unit cell is the same as the (orthorhombic) chemical cell. The ordered moment obtained from the neutron refinement is close to 3 μ_B, indicating that the Co ions are in the high-spin (S = 3/2) configuration. The effective moment inferred from the high temperature susceptibility, p=5.26μ_B, is also consistent with high-spin Co⁺².

Original language	English
Pages (from-to)	4620-4622
Number of pages	3
Journal	Journal of Applied Physics
Volume	81
Issue number	8 PART 2A
DOIs	https://doi.org/10.1063/1.365182
State	Published - Apr 15 1997

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title = "Magnetism in BaCoS2",

abstract = "BaCoS2 is a layered Mott-Hubbard insulator that orders antiferromagnetically near 300 K. We report magnetic susceptibility measurements on polycrystalline BaCoS2 from 77 to 800 K. and in-and out-of-plane measurements on single crystals from 2 to 350 K. We also report a powder neutron refinement of the magnetic structure of BaCoS2. The neutron measurements indicate that the moments lie in the plane, and that the magnetic unit cell is the same as the (orthorhombic) chemical cell. The ordered moment obtained from the neutron refinement is close to 3 μB, indicating that the Co ions are in the high-spin (S = 3/2) configuration. The effective moment inferred from the high temperature susceptibility, p=5.26μB, is also consistent with high-spin Co+2.",

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TY - JOUR

T1 - Magnetism in BaCoS2

AU - Mandrus, D.

AU - Sarrao, J. L.

AU - Chakoumakos, B. C.

AU - Fernandez-Baca, J. A.

AU - Nagler, S. E.

AU - Sales, B. C.

PY - 1997/4/15

Y1 - 1997/4/15

N2 - BaCoS2 is a layered Mott-Hubbard insulator that orders antiferromagnetically near 300 K. We report magnetic susceptibility measurements on polycrystalline BaCoS2 from 77 to 800 K. and in-and out-of-plane measurements on single crystals from 2 to 350 K. We also report a powder neutron refinement of the magnetic structure of BaCoS2. The neutron measurements indicate that the moments lie in the plane, and that the magnetic unit cell is the same as the (orthorhombic) chemical cell. The ordered moment obtained from the neutron refinement is close to 3 μB, indicating that the Co ions are in the high-spin (S = 3/2) configuration. The effective moment inferred from the high temperature susceptibility, p=5.26μB, is also consistent with high-spin Co+2.

AB - BaCoS2 is a layered Mott-Hubbard insulator that orders antiferromagnetically near 300 K. We report magnetic susceptibility measurements on polycrystalline BaCoS2 from 77 to 800 K. and in-and out-of-plane measurements on single crystals from 2 to 350 K. We also report a powder neutron refinement of the magnetic structure of BaCoS2. The neutron measurements indicate that the moments lie in the plane, and that the magnetic unit cell is the same as the (orthorhombic) chemical cell. The ordered moment obtained from the neutron refinement is close to 3 μB, indicating that the Co ions are in the high-spin (S = 3/2) configuration. The effective moment inferred from the high temperature susceptibility, p=5.26μB, is also consistent with high-spin Co+2.

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Magnetism in BaCoS₂

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