Abstract
We report the synthesis and physical properties studies of quasi-one-dimensional (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 sublattices 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.
| Original language | English |
|---|---|
| Article number | 180403 |
| Journal | Physical Review B |
| Volume | 102 |
| Issue number | 18 |
| DOIs | |
| State | Published - Nov 4 2020 |
Funding
This work at University of Texas at Dallas is supported by U.S. Air Force Office of Scientific Research (FA9550-19-1-0037) and National Science Foundation (DMR 1921581). We also acknowledge the support from the Office of Research at University of Texas at Dallas through the Seed Program for Interdisciplinary Research (SPIRe) and the Core Facility Voucher Program. The research conducted at ORNL's High Flux Isotope Reactor was sponsored by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy. Support from Advanced Materials and Manufacturing Processes Institute (AMMPI) at the University of North Texas is acknowledged.