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

Gina Angelo, Jeremy G. Philbrick, Jian Zhang, Tai Kong, Xin Gui

Research output: Contribution to journalArticlepeer-review

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 (P3̄1c). 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.

Original languageEnglish (US)
Pages (from-to)16509-16517
Number of pages9
JournalJournal of Materials Chemistry C
Volume11
Issue number47
DOIs
StatePublished - Nov 22 2023

ASJC Scopus subject areas

  • General Chemistry
  • Materials Chemistry

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