Issue 47, 2023

Magnetic order in a quenched-high-temperature-phase of Cu-doped MnBi

Abstract

Permanent magnets are of great importance due to their vast applications. MnBi has been proposed to be a potential permanent magnet that can be widely used while past efforts have been focused on optimizing the ferromagnetic low-temperature phase of MnBi. Herein, we report a series of new materials, CuxMn1−xBi, crystallizing in a quenched high-temperature-phase (QHTP) MnBi-related structure. We synthesized single crystals of CuxMn1−xBi and found that they crystallize in an unreported trigonal structure (P[3 with combining macron]1c). Magnetic properties measurements imply high-temperature antiferromagnetic (AFM) ordering and low-temperature ferromagnetic or ferrimagnetic (FM/FiM) ordering. By analyzing the doping effect on crystal structure and magnetic properties, we established a magnetic phase diagram for Cu-doped MnBi and attributed the AFM and FM/FiM to two different atomic sites of Mn.

Graphical abstract: Magnetic order in a quenched-high-temperature-phase of Cu-doped MnBi

Supplementary files

Article information

Article type
Paper
Submitted
22 8月 2023
Accepted
21 11月 2023
First published
22 11月 2023

J. Mater. Chem. C, 2023,11, 16509-16517

Magnetic order in a quenched-high-temperature-phase of Cu-doped MnBi

G. Angelo, J. G. Philbrick, J. Zhang, T. Kong and X. Gui, J. Mater. Chem. C, 2023, 11, 16509 DOI: 10.1039/D3TC02995F

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