Stripe antiferromagnetism in van der Waals metal HoTe3 decoupled from charge density wave order
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| Natura: | Preprint |
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2026
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| author | Yun, Weiyi Nakano, Ryota Misawa, Ryo Yamada, Rinsuke Akatsuka, Shun Onuki, Yoshichika Baral, Priya Ranjan Saitoh, Hiraku Kiyanagi, Ryoji Ohhara, Takashi Nakajima, Taro Arima, Taka-hisa Hirschberger, Max |
| author_facet | Yun, Weiyi Nakano, Ryota Misawa, Ryo Yamada, Rinsuke Akatsuka, Shun Onuki, Yoshichika Baral, Priya Ranjan Saitoh, Hiraku Kiyanagi, Ryoji Ohhara, Takashi Nakajima, Taro Arima, Taka-hisa Hirschberger, Max |
| contents | The $R\mathrm{Te}_3$ ($R = \text{rare earth}$) family of layered van der Waals (vdW) compounds hosts coexisting magnetic and charge density wave (CDW) orders, yet the interplay between these degrees of freedom remains little explored. Combining polarized and unpolarized neutron diffraction on single-crystal $\mathrm{HoTe}_3$, we identify two distinct antiferromagnetic (AFM) phases, both exhibiting a collinear $\uparrow\uparrow\downarrow\downarrow$ motif within individual vdW layers. The two phases are distinguished by the vdW stacking of magnetic layers: ferromagnetic (FM) stacking in the higher-temperature AFM-II phase, here termed ``vertical-stripe'', and AFM stacking in the AFM-I ground state, here termed ``tilted-stripe''; the two phases have propagation vectors $\boldsymbol{q}_{\mathrm{m2}} = (0.48, 0, 0)$ and $\boldsymbol{q}_{\mathrm{m1}} = (0.5, 0.5, 0)$, respectively. In contrast to the CDW-driven exotic magnetism in $\mathrm{DyTe}_3$, $\mathrm{TbTe}_3$, and $\mathrm{GdTe}_3$, we find no evidence for coupling between magnetism and CDW in $\mathrm{HoTe}_3$. The relative alignment between AFM and CDW propagation vectors, as well as single-ion anisotropy, are likely essential for generating coupled spin/charge orders in layered vdW systems. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2602_16261 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Stripe antiferromagnetism in van der Waals metal HoTe3 decoupled from charge density wave order Yun, Weiyi Nakano, Ryota Misawa, Ryo Yamada, Rinsuke Akatsuka, Shun Onuki, Yoshichika Baral, Priya Ranjan Saitoh, Hiraku Kiyanagi, Ryoji Ohhara, Takashi Nakajima, Taro Arima, Taka-hisa Hirschberger, Max Strongly Correlated Electrons Materials Science The $R\mathrm{Te}_3$ ($R = \text{rare earth}$) family of layered van der Waals (vdW) compounds hosts coexisting magnetic and charge density wave (CDW) orders, yet the interplay between these degrees of freedom remains little explored. Combining polarized and unpolarized neutron diffraction on single-crystal $\mathrm{HoTe}_3$, we identify two distinct antiferromagnetic (AFM) phases, both exhibiting a collinear $\uparrow\uparrow\downarrow\downarrow$ motif within individual vdW layers. The two phases are distinguished by the vdW stacking of magnetic layers: ferromagnetic (FM) stacking in the higher-temperature AFM-II phase, here termed ``vertical-stripe'', and AFM stacking in the AFM-I ground state, here termed ``tilted-stripe''; the two phases have propagation vectors $\boldsymbol{q}_{\mathrm{m2}} = (0.48, 0, 0)$ and $\boldsymbol{q}_{\mathrm{m1}} = (0.5, 0.5, 0)$, respectively. In contrast to the CDW-driven exotic magnetism in $\mathrm{DyTe}_3$, $\mathrm{TbTe}_3$, and $\mathrm{GdTe}_3$, we find no evidence for coupling between magnetism and CDW in $\mathrm{HoTe}_3$. The relative alignment between AFM and CDW propagation vectors, as well as single-ion anisotropy, are likely essential for generating coupled spin/charge orders in layered vdW systems. |
| title | Stripe antiferromagnetism in van der Waals metal HoTe3 decoupled from charge density wave order |
| topic | Strongly Correlated Electrons Materials Science |
| url | https://arxiv.org/abs/2602.16261 |