21 papers
Unconventional Pressure Evolution of Spin-Density-Wave State in LaNiO
Xiaoxiang Zhou, Shiyu Xie, Liangxin Qiao +13
The discovery of pressure-induced high temperature superconductivity in the bilayer nickelate LaNiO has raised the question of how its spin-density-wave (SDW) sta…
Identifying the structure of La3Ni2O7 in the pressurized superconducting state
Hengyuan Zhang, Jielong Zhang, Mengwu Huo +6
The crystal structure of La3Ni2O7 in its high-pressure superconducting state has been the subject of intense debate, with conflicting reports proposing orthorhombic (Amam or Fmmm)…
Electronic Nematicity Revealed by Polarized Ultrafast Spectroscopy in Bilayer LaNiO
Qi-Yi Wu, De-Yuan Hu, Chen Zhang +14
We report a polarized ultrafast pump-probe study of the normal-state electronic dynamics in bilayer LaNiO and trilayer LaNiO single crystals at ambient p…
Regulating oxygen content and superconductivity in LaNiO
Peiyue Ma, Jingyuan Li, Xing Huang +17
The synthesis of high-quality Ruddlesden-Popper (RP) nickelates remains challenging due to variations in oxygen content and the prevalence of intergrown RP phases. Precisely contro…
High-energy electronic excitations in La3Ni2O7 by time-resolved optical spectroscopy
Junzhi Zhu, Mengwu Huo, Yubin Wang +11
Recently, high-temperature superconductivity has been established in bilayer La3Ni2O7, which exhibits a density-wave (DW) transition at ~ 150 K under ambient pressure. The DW order…
Anisotropic Electronic Correlations in the Spin Density Wave State of LaNiO
Ge He, Jun Shen, Shiyu Xie +21
The bilayer nickelate superconductor LaNiO undergoes a density wave transition near 150 K that has attracted intensive scrutiny, yet its microscopic origin remains elus…