We report the synthesis and physical properties studies of quais-1D iron chalcogenide BaFe2Se4 which shares the FeSe4 tetrahedra building motif commonly seen in the iron chalcogenide superconductors. A high-quality polycrystalline sample was achieved by solid-state reaction method and characterized by X-ray diffraction, electrical resistivity, magnetic susceptibility and neutron diffraction measurements. BaFe2Se4 is a narrow gap semiconductor that magnetically orders at ∼ 310 K. Both neutron powder diffraction results and isothermal M-H loops suggest a canted antiferromagnetic structure where Fe sublattice are antiferromagnetically ordered along the c-axis quasi-1D chain direction, resulting in a net ferromagnetic moment in the perpendicular direction along the a-axis with tilted angle of 18.7∘ towards the b-axis.
@article{arxiv.2008.08809,
title = {Canted Antiferromagnetism in the Quasi-1D Iron Chalcogenide BaFe$_{2}$Se$_{4}$},
author = {Xiaoyuan Liu and Keith M. Taddei and Sheng Li and Wenhao Liu and Nikhil Dhale and Rashad Kadado and Diana Berman and Clarina Dela Cruz and Bing Lv},
journal= {arXiv preprint arXiv:2008.08809},
year = {2020}
}