Abstract
Magnetic properties of Cu2(MoO4)(SeO3), an S = 12 centrosymmetric antiferromagnet (AFM), were investigated using superconducting quantum interference device magnetometry, neutron diffraction, and magnetoelectric (ME) measurements. The magnetic susceptibility measurements indicate a broad peak at ∼50 K, followed by a phase transition into AFM order at TN=23.6(1) K. Above TN, a fit to the Curie-Weiss law gives a Curie-Weiss temperature ΘCW=-68(1) K, suggesting the dominant AFM coupling. Neutron powder diffraction reveals that the Cu2+ spins are aligned AFM along the c axis with weak noncollinearity under the magnetic space group of P21′/c. The ME response indicates that a nondiagonal component of a ME tensor is active, supporting the simultaneous spatial and time reversal symmetry breaking under P21′/c.
| Original language | English |
|---|---|
| Article number | 224420 |
| Journal | Physical Review B |
| Volume | 109 |
| Issue number | 22 |
| DOIs | |
| State | Published - Jun 1 2024 |
Funding
The authors thank S. Kimura and K. Ohgushi for stimulating discussion. This paper was partly supported by Grants-In-Aid for Scientific Research (Grants No. 23KK0051, No. 23K03296, No. 22H00101, No. 20K14395, No. 19KK0069, and No. 19H05824) from MEXT, Japan. A portion of this research used resources at the High Flux Isotope Reactor, a Department of Energy (DOE) Office of Science User Facility operated by the ORNL, and was partly supported by the U.S.-Japan Collaborative Program on Neutron Scattering. The work at JRR-3 was partly supported by the general user program of the Institute for Solid State Physics, University of Tokyo (Proposal No. 21501). The work at IMRAM was partly supported by the \u201CCrossover Alliance to Create the Future with People, Intelligence and Materials\u201D from MEXT, Japan.