Long-range and short-range magnetic order in the singlet ground state system TbCo3 B2

Oleg Rivin; Hagai Shaked; Arsen Gukasov; El'ad N. Caspi

doi:10.1103/PhysRevB.89.174423

Long-range and short-range magnetic order in the singlet ground state system TbCo3 B2

Oleg Rivin, Hagai Shaked, Arsen Gukasov, El'ad N. Caspi

Department of Physics

Research output: Contribution to journal › Article › peer-review

5 Scopus citations

Abstract

The YCo3B2 compound is studied by polarized neutron powder diffraction in search of magnetic order. It is found that YCo3B2 remains paramagnetic down to 10 K. Neutron powder diffraction study of the induced transition in the Van Vleck paramagnet TbCo3B2 revealed a significant contribution of magnetic diffuse scattering at small angles and near the (100) reflection. Analysis of these results leads to a revised magnetic structure of TbCo3B2, in which the Tb sublattice orders ferromagnetically at 31 K, with no Co ordering. Also, short-range magnetic order of the Tb sublattice, extending into the paramagnetic region, was found. The temperature evolution of this short-range order's correlation length, in the paramagnetic temperatures region, shows a significant anomaly unique to induced transition magnetic ordering.

Original language	English
Article number	174423
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	89
Issue number	17
DOIs	https://doi.org/10.1103/PhysRevB.89.174423
State	Published - 20 May 2014

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.89.174423

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abstract = "The YCo3B2 compound is studied by polarized neutron powder diffraction in search of magnetic order. It is found that YCo3B2 remains paramagnetic down to 10 K. Neutron powder diffraction study of the induced transition in the Van Vleck paramagnet TbCo3B2 revealed a significant contribution of magnetic diffuse scattering at small angles and near the (100) reflection. Analysis of these results leads to a revised magnetic structure of TbCo3B2, in which the Tb sublattice orders ferromagnetically at 31 K, with no Co ordering. Also, short-range magnetic order of the Tb sublattice, extending into the paramagnetic region, was found. The temperature evolution of this short-range order's correlation length, in the paramagnetic temperatures region, shows a significant anomaly unique to induced transition magnetic ordering.",

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AU - Shaked, Hagai

AU - Gukasov, Arsen

AU - Caspi, El'ad N.

PY - 2014/5/20

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AB - The YCo3B2 compound is studied by polarized neutron powder diffraction in search of magnetic order. It is found that YCo3B2 remains paramagnetic down to 10 K. Neutron powder diffraction study of the induced transition in the Van Vleck paramagnet TbCo3B2 revealed a significant contribution of magnetic diffuse scattering at small angles and near the (100) reflection. Analysis of these results leads to a revised magnetic structure of TbCo3B2, in which the Tb sublattice orders ferromagnetically at 31 K, with no Co ordering. Also, short-range magnetic order of the Tb sublattice, extending into the paramagnetic region, was found. The temperature evolution of this short-range order's correlation length, in the paramagnetic temperatures region, shows a significant anomaly unique to induced transition magnetic ordering.

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Long-range and short-range magnetic order in the singlet ground state system TbCo3 B2

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