Anisotropic electronic correlations in the spin density wave state of La3Ni2O7
Ge He, Jun Shen, Shiyu Xie, Haotian Zhang, Mengwu Huo, Jun Shu, Deyuan Hu, Xiaoxiang Zhou, Yanmin Zhang, Lei Qin, Liangxin Qiao, Hengjie Liu, Chuansheng Hu, Xijie Dong, Dengjing Wang, Jun Liu, Wei Hu, Jie Yuan, Yajun Yan, Zeming Qi, Kui Jin, Zengyi Du, Meng Wang, Dong-Lai Feng · 2026
Read Anisotropic electronic correlations in the spin density wave state of La3Ni2O7 by Ge He, Jun Shen, Shiyu Xie, Haotian Zhang, Mengwu Huo, Jun Shu, Deyuan Hu, Xiaoxiang Zhou, Yanmin Zhang, Lei Qin, Liangxin Qiao, Hengjie Liu, Chuansheng Hu, Xijie Dong, Dengjing Wang, Jun Liu, Wei Hu, Jie Yuan, Yajun Yan, Zeming Qi, Kui Jin, Zengyi Du, Meng Wang, Dong-Lai Feng (2026) in the Tower of Babel, a free online library of public-domain works preserved in clean, searchable text. No sign-up. The full text is served as a plain-text file at a predictable URL, where text is present: https://antarctic-labs.com/tower-of-babel/pmc-13376638.txt.
Description
Ge He and a large team probe a spin density wave state in a layered nickel compound, La3Ni2O7, that can superconduct under pressure. The compound's density wave sets in near 150 kelvin, yet its microscopic origin remains elusive. Their 2026 study fires polarized light at high-quality single crystals and reads how the light scatters back, using Raman scattering. That reading maps where electronic gaps open in the spin wave state.
Below the transition point, spectral weight shifted in two symmetry channels, a signature of gap formation. Gap strength varied by direction: intermediate to strong coupling near two zone-edge points, and weaker coupling along the diagonal. That anisotropy marks an unconventional wave driven by electronic correlations that lean to one side. The team says the reading establishes the electronic character of the state. It also grounds how high-temperature superconductivity may emerge in such nickelates under pressure.
Catalog record
| CREATOR | Ge He, Jun Shen, Shiyu Xie, Haotian Zhang, Mengwu Huo, Jun Shu, Deyuan Hu, Xiaoxiang Zhou, Yanmin Zhang, Lei Qin, Liangxin Qiao, Hengjie Liu, Chuansheng Hu, Xijie Dong, Dengjing Wang, Jun Liu, Wei Hu, Jie Yuan, Yajun Yan, Zeming Qi, Kui Jin, Zengyi Du, Meng Wang, Dong-Lai Feng |
|---|---|
| YEAR | 2026 |
| COLLECTION | PAPERS |
| FORMAT | TXT |
| FILE SIZE | 29 KB |
| VERSION | 1.0 |
| LICENSE | CC BY 4.0 |
| RIGHTS | CC BY |
| SOURCE | Europe PMC |