Antiferromagnetic structure and magnetic properties of Dy2O2Te: An isostructural analog of the rare-earth superconductors R2O2Bi

作者：Liu, Juanjuan; Huang, Jiale; Sheng, Jieming; Wang, Jinchen; Pan, Feihao; Zhang, Hongxia; Xu, Daye; Qin, Jianfei; Hao, Lijie; Xia, Yuanhua; Li, Hao; Tong, Xin; Wu, Liusuo; Cheng, Peng^*; Bao, Wei^*

来源：Physical Review B, 2022, 105(13): 134419.

DOI：10.1103/PhysRevB.105.134419

• BI2-SQUARE NET
• FERMION
• Y2O2BI
• ND
• LA
• SM

The rare-earth compounds R2O2Bi (R = Tb, Dy, Er, Lu, Y) are newly discovered superconductors in the vicinity of a rare-earth magnetic long-range order. In this work, we determine the magnetic order of the parent compound Dy2O2Te by neutron scattering as the A-type antiferromagnetic structure below the N??el temperature TN = 9.7 K. The large staggered magnetic moment 9.4(1) ??B per Dy at T = 3.5 K lies in the basal ab plane. In a magnetic field, anomalous magnetic properties including the bifurcation between zero-field- and field-cooling magnetization, a butterfly-shaped magnetic hysteresis, and slow magnetic relaxation emerge, which are related to the field-induced metamagnetic transitions in Dy2O2Te. Our experimental findings could stimulate further research on the relation between antiferromagnetism and superconductivity in these rare-earth compounds.

• 单位
  中国科学院