Magnetic properties of the quasi-one-dimensional S=1 spin chain antiferromagnet BaNiTe2O7

被引:1
作者
Chen, Xiyu [1 ,2 ]
Gao, Yiming [2 ]
Liu, Meifeng [1 ]
Zou, Tao [3 ]
Garlea, V. Ovidiu [4 ]
dela Cruz, Clarina [4 ]
Liu, Zhen [1 ]
Niu, Wenjing [1 ]
Tan, Leili [1 ]
Zhou, Guanzhong [5 ]
Liu, Fei [1 ]
Zheng, Shuhan [1 ]
Ma, Zhen [1 ]
Wang, Xiuzhang [1 ]
Li, Hong [1 ]
Dong, Shuai [2 ]
Liu, Jun-Ming [1 ,5 ]
机构
[1] Hubei Normal Univ, Inst Adv Mat, Coll Phys & Elect Sci, Huangshi 435002, Peoples R China
[2] Southeast Univ, Sch Phys, Key Lab Quantum Mat & Devices, Minist Educ, Nanjing 211189, Peoples R China
[3] Shangdong Normal Univ, Collaborat Innovat Ctr Light Manipulat & Applicat, Jinan 250358, Peoples R China
[4] Oak Ridge Natl Lab, Neutron Scattering Div, Oak Ridge, TN 37831 USA
[5] Nanjing Univ, Lab Solid State Microstruct, Nanjing 210093, Peoples R China
基金
中国国家自然科学基金;
关键词
HALDANE-GAP;
D O I
10.1103/PhysRevMaterials.7.094404
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We report a quasi-one-dimensional S = 1 spin chain compound BaNiTe2O7. This magnetic system has been investigated by magnetic susceptibility, specific heat, and neutron powder diffraction. These results indicate that BaNiTe2O7 develops a short-range magnetic correlation around T similar to 22 K. With further cooling, an antiferromagnetic phase transition is observed at TN similar to 5.4 K. Neutron powder diffraction revealed antiferromagnetic noncollinear order with a commensurate propagation vector k = (1/2, 1, 0). The refined magnetic moment size of Ni2+ at 1.5 K is 1.84 mu B, and its noncollinear spin texture is confirmed by first-principles calculations. Inelastic neutron-scattering results and density functional theory calculations confirmed the quasi-one-dimensional nature of the spin systems.
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页数:7
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