Intertwined Charge and Spin Density Waves in Trilayer Nickelate LaNiO Revealed by La NQR
arXiv:2601.17663 · doi:10.1103/5n3k-gtn9
Abstract
The discovery of superconducting transitions in pressurized LaNiO and LaNiO has highlighted the pivotal role of density wave (DW) orders in nickelate superconductors. To gain a comprehensive understanding of the superconducting state, it is essential to elucidate the nature of the DW order. In this study, we utilized La nuclear quadrupole resonance (NQR) to investigate the charge density wave (CDW) and spin density wave (SDW) orders in both single-crystal and polycrystalline LaNiO. Near K, an abrupt change in both the linewidth and frequency of the La(2) site in the single-crystal sample provides compelling evidence for a first-order-like phase transition. The pronounced broadening of the NQR lines indicates the incommensurate nature of the DW order. Furthermore, the spin-lattice relaxation rate divided by temperature 1/ exhibits a strong enhancement at , indicating the strong spin fluctuations above the first-order DW transition. These observations suggest an intricate interplay between incommensurate CDW and SDW orders. Our findings offer critical insights into the microscopic mechanisms of the DW state in LaNiO and establish an essential framework for exploring the interplay between DW and superconducting phases in nickelate superconductors.
18 pages, 5 figures
References in corpus (28)
- High-temperature superconductivity in iron-based materials
- Superconductivity near 80 Kelvin in single crystals of La3Ni2O7 under pressure
- Superconductivity in pressurized trilayer LaNiO single crystals
- Signature of superconductivity in pressurized LaNiO
- Electronic and magnetic excitations in LaNiO
- Effects of Pressure and Doping on Ruddlesden-Popper phases Lan+1NinO3n+1
- Possible star-of-David pattern charge density wave with additional modulation in the kagome superconductor CsVSb
- Pressure-enhanced spin-density-wave transition in double-layer nickelate
- Structural transition, electric transport, and electronic structures in the compressed trilayer nickelate La4Ni3O10
- Multiband Metallic Ground State in Multilayered Nickelates LaNiO and LaNiO Probed by La-NMR at Ambient Pressure
- Superconductivity in trilayer nickelate La4Ni3O10 under pressure
- Effective model and -wave superconductivity in trilayer nickelate LaNiO
- Microscopic coexistence of antiferromagnetic order and superconductivity in BaKFeAs
- The electronic and magnetic structures of bilayer LaNiO at ambient pressure
- Electronic structure and magnetic tendencies of trilayer LaNiO under pressure: structural transition, molecular orbitals, and layer differentiation
- Bulk superconductivity up to 96 K in pressurized nickelate single crystals
- Ultrafast Dynamics of Bilayer and Trilayer Nickelate Superconductors
- Commensurate-to-incommensurate transition of charge-density-wave order and a possible quantum critical point in pressurized kagome metal CsVSb
- Electronic structure and magnetic correlations in trilayer nickelate superconductor LaNiO under pressure
- Origin of the density wave instability in trilayer nickelate LaNiO revealed by optical and ultrafast spectroscopy
- Effective model and electron correlations in trilayer nickelate superconductor LaNiO
- Microscopic evidence of charge- and spin-density waves in LaNiO revealed by La-NQR
- Collapse of density wave and emergence of superconductivity in pressurized-LaNiO evidenced by ultrafast spectroscopy
- Signature of superconductivity in pressurized La4Ni3O10-x single crystals grown at ambient pressure
- Spin-density wave and superconductivity in LaNiO under ambient pressure
- Dichotomy in Low- and High-energy Band Renormalizations in Trilayer Nickelate : a Comparison with Cuprates
- Landau theory of the density wave transition in trilayer Ruddlesden-Popper nickelates
- Complex spin-density-wave ordering in LaNiO