Magnetic Field Tuning of Parallel Spin Stripe Order and Fluctuations near the Pseudogap Quantum Critical Point in LaNdSrCuO
arXiv:2204.09503 · doi:10.1103/PhysRevB.106.214427
Abstract
A quantum critical point in the single layer, hole-doped cuprate system LaNdSrCuO (Nd-LSCO), near = 0.23 has been proposed as an organizing principle for understanding high temperature superconductivity. Our earlier neutron diffraction work on Nd-LSCO at optimal and high doping revealed static parallel spin stripes to exist out to the QCP and slightly beyond, at = 0.24 and 0.26. We examine more closely the parallel spin stripe order parameter in Nd-LSCO in both zero magnetic field and fields up to 8 T for H // c in these single crystals. In contrast to earlier studies at lower doping, we observe that H //c in excess of 2.5 T eliminates the incommensurate quasi-Bragg peaks associated with parallel spin stripes. But this elastic scattering is not destroyed by the field; rather it is transferred to commensurate {\textbf{Q} = 0} Bragg positions, implying that the spins participating in the spin stripes have been polarized. Inelastic neutron scattering measurements at high fields show an increase in the low energy, parallel spin stripe fluctuations and evidence for a spin gap, = 3 0.5 meV for Nd-LSCO with = 0.24. This is shown to be consistent with spin gap measurements as a function of superconducting T over five different families of cuprate superconductors, which follow the approximate linear relation, = 3.5 kT.
References in corpus (30)
- Angle-resolved photoemission spectroscopy of the cuprate superconductors
- A Common Thread: the pairing interaction for the unconventional superconductors
- Coexistence of, and Competition between, Superconductivity and Charge-Stripe Order in La(1.6-x)Nd(0.4)Sr(x)CuO(4)
- Spin-Gap Proximity Effect Mechanism of High Temperature Superconductivity
- Antiferromagnetic Order Induced by an Applied Magnetic Field in a High-Temperature Superconductor
- Change of carrier density at the pseudogap critical point of a cuprate superconductor
- Scattering and Pairing in Cuprate Superconductors
- The remarkable underlying ground states of cuprate superconductors
- SO(5) Theory of Antiferromagnetism and Superconductivity
- Linear-T resistivity and change in Fermi surface at the pseudogap critical point of a high-Tc superconductor
- Observation of New Incommensurate Magnetic Correlations at the Lower Critical Concentration for Superconductivity (x=0.05) in La(2-x)Sr(x)CuO4
- Landau Theory of Stripe Phases in Cuprates and Nickelates
- Thermodynamic signatures of quantum criticality in cuprates
- Direct relation between the low-energy spin excitations and superconductivity of overdoped high- superconductors
- Tuning competing orders in La2-xSrxCuO4 cuprate superconductors by the application of an external magnetic field
- High-Tc Superconductivity and Antiferromagnetism in Multilayered Copper Oxides - A New Paradigm of Superconducting Mechanism -
- Disappearance of antiferromagnetic spin excitations in over-doped LaSrCuO
- Cuprate superconductors as viewed through a striped lens
- Fermi surface transformation at the pseudogap critical point of a cuprate superconductor
- Electron scattering, charge order, and pseudogap physics in LaNdSrCuO: An angle resolved photoemission spectroscopy study
- Effect of a magnetic field on the spin- and charge-density wave order in La1.45Nd0.4Sr0.15CuO4
- Vestigial nematicity from spin and/or charge order in the cuprates
- Generic character of charge and spin density waves in superconducting cuprates
- Magnetic field induced enhancement of spin-order peak intensity in La(1.875)Ba(0.125)CuO(4)
- Incommensurate Spin Ordering and Fluctuations in underdoped La_{2-x}Ba_{x}CuO_{4}
- Low-energy antiferromagnetic spin fluctuations limit the coherent superconducting gap in cuprates
- Diagonal and Collinear Incommensurate Spin Structures in underdoped LaBaCuO
- Parallel Spin Stripes and Their Coexistance with Superconducting Ground States at Optimal and High Doping in LaNdSrCuO
- Materials preparation, single crystal growth, and the phase diagram of the cuprate high temperature superconductor La1.6-xNd0.4SrxCuO4
- Zooming on the Quantum Critical Point in Nd-LSCO