A5002443267- Magnetic and transport properties of perovskites and related materials
- Structural Analysis and Optimization
- Vibration and Dynamic Analysis
- Magnetic Properties of Alloys
- Multiferroics and related materials
- Physics of Superconductivity and Magnetism
- Ferroelectric and Piezoelectric Materials
- Rare-earth and actinide compounds
- Advanced Condensed Matter Physics
- Composite Structure Analysis and Optimization
Hebei University of Architecture
2023
Spectacular quantum phenomena such as superconductivity often emerge in flat-band systems where Coulomb interactions overpower electron kinetics. Engineering strategies for physics is therefore of great importance. Here, using high-energy grazing-incidence x-ray diffraction, we demonstrate how in-situ temperature annealing the infinite-layer nickelate PrNiO$_2$ induces a giant superlattice structure. The effect has maximum well above room temperature. By covering large scattering volume,...
Charge order has recently been revealed in infinite-layer nickelates as a broken symmetry state addition to superconductivity. Its root and link superconductivity remain elusive. Here, we report resonant x-ray scattering measurement of the charge PrNiO2. By measuring intensity versus azimuthal angles, resolve intra-unit-cell discover that it predominant d-wave orbital symmetry, strikingly resembling lightly doped cuprates. Our results shed new light on nature may assist establishing common...
Strongly correlated materials often respond sensitively to the external perturbations. In recently discovered superconducting infinite-layer nickelates, transition temperature can be dramatically enhanced via only ~1% compressive strain-tuning enabled by substrate design. However, root of such enhancement remains elusive. While pairing mechanism is still not settled, magnetic Cooper - similar cuprates has been proposed. Using resonant inelastic x-ray scattering, we investigate excitations in...