Lattice-decoupled rotatable stripe-like charge order within the strange metal phase of 2M-WS2
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arXiv
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| Main Authors: | , , , , , , , , , , , , , |
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| Format: | Preprint |
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2025
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| _version_ | 1866911329173897216 |
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| author | Xiao, Kebin Guo, Yunkai Fu, Daran Fang, Yuqiang Hu, Yating Yan, Jingming Peng, Yucong Wang, Yuyang Ju, Yongkang Tang, Peizhe Wan, Xiangang Huang, Fuqiang Xue, Qi-Kun Li, Wei |
| author_facet | Xiao, Kebin Guo, Yunkai Fu, Daran Fang, Yuqiang Hu, Yating Yan, Jingming Peng, Yucong Wang, Yuyang Ju, Yongkang Tang, Peizhe Wan, Xiangang Huang, Fuqiang Xue, Qi-Kun Li, Wei |
| contents | In quantum materials, charge orders typically stabilize in specific crystallographic orientations, though their formation mechanisms may vary. Here, using low-temperature scanning tunneling microscopy (STM), we discover a lattice-decoupled rotatable stripe-like charge order coexisting with superconductivity in 2M-WS2. The charge order manifests five distinct orientations across different sample regions, yet maintains an identical wavelength. This directional decoupling from host lattice challenges existing paradigms. First-principles calculations of phonon spectra and nesting function fail to explain the ordering mechanism. Intriguingly, the transition temperature of the charge orders exhibits spatial variations (21-46 K), coinciding with the temperature range of the recently reported strange metal phase in this material. This correlation suggests that the interplay between strong electronic correlations and electron-phonon coupling must be critically evaluated to elucidate the emergence of this unconventional charge order. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2512_18375 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Lattice-decoupled rotatable stripe-like charge order within the strange metal phase of 2M-WS2 Xiao, Kebin Guo, Yunkai Fu, Daran Fang, Yuqiang Hu, Yating Yan, Jingming Peng, Yucong Wang, Yuyang Ju, Yongkang Tang, Peizhe Wan, Xiangang Huang, Fuqiang Xue, Qi-Kun Li, Wei Superconductivity Strongly Correlated Electrons In quantum materials, charge orders typically stabilize in specific crystallographic orientations, though their formation mechanisms may vary. Here, using low-temperature scanning tunneling microscopy (STM), we discover a lattice-decoupled rotatable stripe-like charge order coexisting with superconductivity in 2M-WS2. The charge order manifests five distinct orientations across different sample regions, yet maintains an identical wavelength. This directional decoupling from host lattice challenges existing paradigms. First-principles calculations of phonon spectra and nesting function fail to explain the ordering mechanism. Intriguingly, the transition temperature of the charge orders exhibits spatial variations (21-46 K), coinciding with the temperature range of the recently reported strange metal phase in this material. This correlation suggests that the interplay between strong electronic correlations and electron-phonon coupling must be critically evaluated to elucidate the emergence of this unconventional charge order. |
| title | Lattice-decoupled rotatable stripe-like charge order within the strange metal phase of 2M-WS2 |
| topic | Superconductivity Strongly Correlated Electrons |
| url | https://arxiv.org/abs/2512.18375 |