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arXiv · 1603.07867

A single-crystal neutron diffraction study on magnetic structure of the quasi-one-dimensional antiferromagnet SrCo2V2O8

Juanjuan Liu·Jinchen Wang·Wei Luo·Jieming Sheng·Zhangzhen He·S. A. Danilkin·Wei Bao
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Abstract

The magnetic structure of the spin-chain antiferromagnet SrCo2V2O8 is determined by single-crystal neutron diffraction experiment. The system undergoes magnetic long range order below T_N = 4.96 K. The moment of 2.16μ_B per Co at 1.6 K in the screw chain running along the c axis alternates in the c-axis. The moments of neighboring screw chains are arranged antiferromagnetically along one in-plane axis and ferromagnetically along the other in-plane axis. This magnetic configuration breaks the 4-fold symmetry of the tetragonal crystal structure and leads to two equally populated magnetic twins with antiferromagnetic vector in the a or b axis. The very similar magnetic state to the isostructural BaCo2V2O8 warrants SrCo2V2O8 another interesting half-integer spin-chain antiferromagnet for investigation on quantum antiferromagnetism.

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Juanjuan Liu, Jinchen Wang, Wei Luo, Jieming Sheng, Zhangzhen He, S. A. Danilkin, Wei Bao. 2016-03-25. A single-crystal neutron diffraction study on magnetic structure of the quasi-one-dimensional antiferromagnet SrCo2V2O8. https://doi.org/10.1088/0256-307x%2F33%2F3%2F037502

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