A single-crystal neutron diffraction study on magnetic structure of the quasi-one-dimensional antiferromagnet SrCo2V2O8
| Autor: | Liu, Juanjuan, Wang, Jinchen, Luo, Wei, Sheng, Jieming, He, Zhangzhen, Danilkin, S. A., Bao, Wei |
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| Rok vydání: | 2016 |
| Předmět: | |
| Zdroj: | CHIN. PHYS. LETT. 33, 037502 (2016) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1088/0256-307X/33/3/037502 |
| Popis: | 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 2.16{\mu}_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. Comment: 4 pages, 4 figures |
| Databáze: | arXiv |
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