Saved in:
| Main Authors: | , , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Published: |
2025
|
| Subjects: | |
| Online Access: | https://arxiv.org/abs/2503.18694 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1866912292404199424 |
|---|---|
| author | Miniotaite, Ugne Forslund, Ola K. Nocerino, Elisabetta Ge, Yuqing Elson, Frank Sannemo, Michael Sakurai, Hiroya Sugiyama, Jun Leutkens, Hubertus Ishigaki, Toru Hawai, Takafumi Palm, Rasmus Wang, Chennan Sassa, Yasmine Tam, David W. Månsson, Martin |
| author_facet | Miniotaite, Ugne Forslund, Ola K. Nocerino, Elisabetta Ge, Yuqing Elson, Frank Sannemo, Michael Sakurai, Hiroya Sugiyama, Jun Leutkens, Hubertus Ishigaki, Toru Hawai, Takafumi Palm, Rasmus Wang, Chennan Sassa, Yasmine Tam, David W. Månsson, Martin |
| contents | We utilized high-pressure methods to synthesize the oxides AReO$4$ (A=Zn, Mg) and characterized their crystal structures as monoclinic wolframite-type. By combining muon spin spectroscopy ($μ^+$SR) with DFT calculations for muon stopping sites, we identify two possible magnetic spin structures for both compounds: $Γ_3$ with the propagation vector $\mathbf{k} = (0,1/2,0)$ and $Γ_4$ with $\mathbf{k} = (0,0,0)$. In both cases, the magnetic moments are canted from the principal axes within the $ac$-plane. The ordered moment of the proposed structures is $\mathbf{0.29(5)~μ\mathrm{B}}$ for $Γ_3$ and $\mathbf{0.25(8)~μ_\mathrm{B}}$ for $Γ_4$. The low moment is consistent with the absence of a magnetic contribution to the neutron powder diffraction (NPD) spectra. Bond valence sum (BVS) analysis supports the oxidation state of Re being Re$^{6+}$ in the compounds, and we suggest that a combination of $t_\mathrm{2g}$ orbital splitting due to spin-orbit coupling (SOC) and $d$-$p$ orbital hybridization is responsible for the strongly suppressed ordered magnetic moment. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_18694 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Characterization of Nuclear and Magnetic Structures of Wolframite-Type MgReO4 and ZnReO4 Miniotaite, Ugne Forslund, Ola K. Nocerino, Elisabetta Ge, Yuqing Elson, Frank Sannemo, Michael Sakurai, Hiroya Sugiyama, Jun Leutkens, Hubertus Ishigaki, Toru Hawai, Takafumi Palm, Rasmus Wang, Chennan Sassa, Yasmine Tam, David W. Månsson, Martin Materials Science We utilized high-pressure methods to synthesize the oxides AReO$4$ (A=Zn, Mg) and characterized their crystal structures as monoclinic wolframite-type. By combining muon spin spectroscopy ($μ^+$SR) with DFT calculations for muon stopping sites, we identify two possible magnetic spin structures for both compounds: $Γ_3$ with the propagation vector $\mathbf{k} = (0,1/2,0)$ and $Γ_4$ with $\mathbf{k} = (0,0,0)$. In both cases, the magnetic moments are canted from the principal axes within the $ac$-plane. The ordered moment of the proposed structures is $\mathbf{0.29(5)~μ\mathrm{B}}$ for $Γ_3$ and $\mathbf{0.25(8)~μ_\mathrm{B}}$ for $Γ_4$. The low moment is consistent with the absence of a magnetic contribution to the neutron powder diffraction (NPD) spectra. Bond valence sum (BVS) analysis supports the oxidation state of Re being Re$^{6+}$ in the compounds, and we suggest that a combination of $t_\mathrm{2g}$ orbital splitting due to spin-orbit coupling (SOC) and $d$-$p$ orbital hybridization is responsible for the strongly suppressed ordered magnetic moment. |
| title | Characterization of Nuclear and Magnetic Structures of Wolframite-Type MgReO4 and ZnReO4 |
| topic | Materials Science |
| url | https://arxiv.org/abs/2503.18694 |