Emergent Vortex Ordering in a Multiflavor Pyrochlore-Lattice Compound GeCo$_2$O$_4$
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , , , , , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2026
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866910212195090432 |
|---|---|
| author | Mo, Jiajun Omar, Otkur Guang, Shuangkui Iida, Kazuki Kamazawa, Kazuya Orlandi, Fabio Yang, Wenyun Ma, Xiaobai Zheng, Xiquan Peng, Yingying Xiao, Yuan Zhang, Shunhong Zaharko, Oksana Sun, Xuefeng Gao, Shang |
| author_facet | Mo, Jiajun Omar, Otkur Guang, Shuangkui Iida, Kazuki Kamazawa, Kazuya Orlandi, Fabio Yang, Wenyun Ma, Xiaobai Zheng, Xiquan Peng, Yingying Xiao, Yuan Zhang, Shunhong Zaharko, Oksana Sun, Xuefeng Gao, Shang |
| contents | Entangled spin and orbital degrees of freedom provide a multiflavor route to novel magnetic states inaccessible in conventional spin systems. Here, we report the experimental identification of an emergent vortex lattice in the multiflavor pyrochlore-lattice compound GeCo$_2$O$_4$. By combining comprehensive neutron scattering experiments with a regularized regression framework, we identify substantial Kitaev interactions among the nearest-neighboring Co$^{2+}$ pseudospins, which cooperate with geometric frustration to stabilize the vortex order. These results reveal an unexpected route to vortex-lattice order in a three-dimensional Kitaev-frustrated magnet and demonstrate a regularized protocol for Hamiltonian determination in frustrated quantum materials. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_12042 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Emergent Vortex Ordering in a Multiflavor Pyrochlore-Lattice Compound GeCo$_2$O$_4$ Mo, Jiajun Omar, Otkur Guang, Shuangkui Iida, Kazuki Kamazawa, Kazuya Orlandi, Fabio Yang, Wenyun Ma, Xiaobai Zheng, Xiquan Peng, Yingying Xiao, Yuan Zhang, Shunhong Zaharko, Oksana Sun, Xuefeng Gao, Shang Strongly Correlated Electrons Materials Science Entangled spin and orbital degrees of freedom provide a multiflavor route to novel magnetic states inaccessible in conventional spin systems. Here, we report the experimental identification of an emergent vortex lattice in the multiflavor pyrochlore-lattice compound GeCo$_2$O$_4$. By combining comprehensive neutron scattering experiments with a regularized regression framework, we identify substantial Kitaev interactions among the nearest-neighboring Co$^{2+}$ pseudospins, which cooperate with geometric frustration to stabilize the vortex order. These results reveal an unexpected route to vortex-lattice order in a three-dimensional Kitaev-frustrated magnet and demonstrate a regularized protocol for Hamiltonian determination in frustrated quantum materials. |
| title | Emergent Vortex Ordering in a Multiflavor Pyrochlore-Lattice Compound GeCo$_2$O$_4$ |
| topic | Strongly Correlated Electrons Materials Science |
| url | https://arxiv.org/abs/2605.12042 |