Magnetic Field Dependence of Parallel Spin Stripe Order in Nd-LSCO at Optimal Doping
February 16, 2026
1. Schematic illustration of the segregated stripe orders (green) and d-wave superconducting regions (red) in real space.
2. FWHM and correlation length of the spin-stripe peak measured for Nd-LSCO, extracted from data collected from VERITAS at HFIR.
3. (a) 3D-plot of the spin stripe intensity vs T and magnetic field for the VERITAS and TAX data. (b) A smoothed color map of the same data.
Scientific Achievement
Two triple-axis spectrometers (TAS) were used to examine the interplay between the spin stripe order, and superconductivity for La1.6-xNd0.4SuCuO4 at optimal doping under various temperatures and fields.
Significance and Impact
This work finds a weak reduction of the stripe intensity ~11 K, attributable to vortex disordering in the d-wave superconducting regions. It highlights the importance of electronic phase separation in cuprate materials.
Research Details
- TAS measurements on Nd-LSCO probed the mixed spin stripe and superconducting phase in the system.
- The data was used to construct a spin stripe intensity map as a function of temperature and magnetic field.
“Magnetic field dependence of parallel spin stripe order in La1.6−xNd0.4SrxCuO4 at optimal doping,” Physical Review B, 113, 014418 (2026)
https://doi.org/10.1103/4jwv-dv5s
