Magnetic nature of wolframite MgReO4
Paper i proceeding, 2023

Rhenium oxides belonging to the family AReO4 where A is a metal cation, exhibit interesting electronic and magnetic properties. In this study we have utilized the muon spin rotation/relaxation (μ +SR) technique to study the magnetic properties of the MgReO4 compound. To the best of our knowledge, this is the first investigation reported on this interesting material, that is stabilized in a wolframite crystal structure using a special high-pressure synthesis technique. Bulk magnetic studies show the onset of an antiferromagnetic (AF) long range order, or a possible singlet spin state at T C1 ≈ 90 K, with a subtle second high-temperature transition at T C2 ≈ 280 K. Both transitions are also confirmed by heat capacity (Cp ) measurements. From our μ +SR measurements, it is clear that the sample enters an AF order below T C1 = T N ≈ 85 K. We find no evidence of magnetic signal above T N, which indicates that T C2 is likely linked to a structural transition. Further, via sensitive zero field (ZF) μ +SR measurements we find evidence of a spin reorientation at T Cant ≈ 65 K. This points towards a transition from a collinear AF into a canted AF order at low temperature, which is proposed to be driven by competing magnetic interactions.

Författare

E. Nocerino

Kungliga Tekniska Högskolan (KTH)

Ola Kenji Forslund

Chalmers, Fysik, Materialfysik

Chennan Wang

Paul Scherrer Institut

Hiroya Sakurai

National Institute for Materials Science (NIMS)

Frank Elson

Kungliga Tekniska Högskolan (KTH)

Rasmus Palm

Kungliga Tekniska Högskolan (KTH)

Ugne Miniotaite

Kungliga Tekniska Högskolan (KTH)

Yuqing Ge

Chalmers, Fysik, Materialfysik

Yasmine Sassa

Chalmers, Fysik, Materialfysik

Jun Sugiyama

Comprehensive Research Organization for Science and Society

Martin Månsson

Kungliga Tekniska Högskolan (KTH)

Journal of Physics: Conference Series

17426588 (ISSN) 17426596 (eISSN)

Vol. 2462 1 012037

15th International Conference on Muon Spin Rotation, Relaxation and Resonance, MuSR 2022
Parma, Italy,

Ämneskategorier

Oorganisk kemi

Materialkemi

Den kondenserade materiens fysik

DOI

10.1088/1742-6596/2462/1/012037

Mer information

Senast uppdaterat

2023-05-08