Incommensurate and commensurate antiferromagnetic orders in the kagome compound UV$_{6}$Sn$_{6}$
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arXiv
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| Natura: | Preprint |
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2025
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| _version_ | 1866910956601212928 |
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| author | Patino, Midori Amano Raymond, Stephane Knebel, Georg Berre, Pierre Le Savvin, Stanislav Pachoud, Elise Ressouche, Eric Fettinger, James C. Leynaud, Olivier Pecaut, Jacques Klavins, Peter Hasselbach, Klaus Brison, Jean-Pascal Lapertot, Gerard Taufour, Valentin |
| author_facet | Patino, Midori Amano Raymond, Stephane Knebel, Georg Berre, Pierre Le Savvin, Stanislav Pachoud, Elise Ressouche, Eric Fettinger, James C. Leynaud, Olivier Pecaut, Jacques Klavins, Peter Hasselbach, Klaus Brison, Jean-Pascal Lapertot, Gerard Taufour, Valentin |
| contents | We report on the synthesis of single crystals of the kagome compound, UV$_6$Sn$_6$, and present the results of magnetization, electrical resistivity, heat capacity, x-ray, and neutron diffraction experiments to characterize the structure and magnetic properties. UV$_6$Sn$_6$ crystallizes in a large supercell of the HfFe$_6$Ge$_6$ parent structure with an hexagonal symmetry in which some of the U atoms are shifted by $c/2$ in an ordered fashion. Below $T_{N1}\approx$ 29 K, an incommensurate magnetic structure with a temperature-dependent wave vector $(0,0,k_z)$ is observed. Below $T_{N2}=$ 23.5 K, the wave vector locks in to $(0,0,0.5)$, forming an antiferromagnetic ground state. The U moments align along the $c$ axis retaining a large magnetic anisotropy. These findings highlight the role of the $5f$ orbitals from uranium in this structural family in driving both magnetic ordering and structural modulation and distinguish UV$_6$Sn$_6$ from its lanthanide-based analogs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_12922 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Incommensurate and commensurate antiferromagnetic orders in the kagome compound UV$_{6}$Sn$_{6}$ Patino, Midori Amano Raymond, Stephane Knebel, Georg Berre, Pierre Le Savvin, Stanislav Pachoud, Elise Ressouche, Eric Fettinger, James C. Leynaud, Olivier Pecaut, Jacques Klavins, Peter Hasselbach, Klaus Brison, Jean-Pascal Lapertot, Gerard Taufour, Valentin Strongly Correlated Electrons Materials Science We report on the synthesis of single crystals of the kagome compound, UV$_6$Sn$_6$, and present the results of magnetization, electrical resistivity, heat capacity, x-ray, and neutron diffraction experiments to characterize the structure and magnetic properties. UV$_6$Sn$_6$ crystallizes in a large supercell of the HfFe$_6$Ge$_6$ parent structure with an hexagonal symmetry in which some of the U atoms are shifted by $c/2$ in an ordered fashion. Below $T_{N1}\approx$ 29 K, an incommensurate magnetic structure with a temperature-dependent wave vector $(0,0,k_z)$ is observed. Below $T_{N2}=$ 23.5 K, the wave vector locks in to $(0,0,0.5)$, forming an antiferromagnetic ground state. The U moments align along the $c$ axis retaining a large magnetic anisotropy. These findings highlight the role of the $5f$ orbitals from uranium in this structural family in driving both magnetic ordering and structural modulation and distinguish UV$_6$Sn$_6$ from its lanthanide-based analogs. |
| title | Incommensurate and commensurate antiferromagnetic orders in the kagome compound UV$_{6}$Sn$_{6}$ |
| topic | Strongly Correlated Electrons Materials Science |
| url | https://arxiv.org/abs/2503.12922 |