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G -type antiferromagnetic ordering with strong anisotropic exchange interactions in SrIr 0.8 Sn 0.2 O 3

Year: 2025
Type: article
Abstract: Isovalent substitution of Ir 4 + with Sn 4 + in perovskite SrIrO 3 induces a metal-insulator transition accompanied with strong antiferromagnetic ordering. We performed resonant x-ray scattering to investigate the magnetism in SrIr 0.8 Sn 0.2 O 3 . The G -type antiferromagnetic ordering with spin pointing along c axis was fully determined by azimuth-dependent elastic scattering. Dynamical magnetic excitation spectra were measured with resonant inelastic x-ray scattering. Strong magnetic exchange interactions were observed with magnon dispersing up to ∼ 130 meV , and the anisotropy drives a large ∼ 50 meV gap. With these results, we discuss the paramagnetic semimetallic behavior of the undoped SrIrO 3 .
DOI: 10.1103/bcp9-zg8f
Authors: Xiang Li, Xiaoting Li, Jiaqi Lin, Zahirul Islam, Mary H. Upton, Vivek Thampy, Yifan Jiang, Yuan Wan, Haizhong Guo, Xuerong Liu
Institutions: ShanghaiTech University, Westlake University, Argonne National Laboratory, SLAC National Accelerator Laboratory, Chinese Academy of Sciences, Institute of Physics, Zhengzhou University, Henan Academy of Sciences
Language: English
Open Access status: gold
Estimated APC paid: $2,625
Funders: U.S. Department of Energy, National Natural Science Foundation of China, ShanghaiTech University, National Key Research and Development Program of China, Dream Project of Ministry of Science and Technology of the People's Republic of China, Argonne National Laboratory
Awards: G102163711, G1837556969, G1867681114, G4313370935, G6583489589, G6848590004, G8042111573, G8496180185
OpenAlex ID: W4416782736
FWCI:
Cites: 61
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