A5009543797- X-ray Diffraction in Crystallography
- Crystallization and Solubility Studies
- Physics of Superconductivity and Magnetism
- Magnetic and transport properties of perovskites and related materials
- Rare-earth and actinide compounds
- Iron-based superconductors research
- Metallurgical Processes and Thermodynamics
- Magneto-Optical Properties and Applications
- Advanced Condensed Matter Physics
- Electronic and Structural Properties of Oxides
- Various Chemistry Research Topics
- Crystallography and molecular interactions
Institute of Physics
2021-2025
Chinese Academy of Sciences
2021-2025
National Laboratory for Superconductivity
2021-2025
University of Chinese Academy of Sciences
2021
Peking University
1987
Strongly correlated materials respond sensitively to external perturbations such as strain, pressure, and doping. In the recently discovered superconducting infinite-layer nickelates, transition temperature can be enhanced via only ~ 1% compressive strain-tuning with root of enhancement still being elusive. Using resonant inelastic x-ray scattering (RIXS), we investigate magnetic excitations in PrNiO
Many mechanisms for unconventional superconductivity have been proposed, but actually proving which one is in charge challenging. Quite astonishingly, dynamical vertex approximation predict the superconducting phase diagram of novel nickelate superconductors, with microscopic origin being antiferromagnetic spin fluctuations. The authors compare fluctuations behind these calculations to experiment. again good agreement gives an overall coherent and complete picture, thus a high level...
Abstract The discovery of unconventional superconductivity often triggers significant interest in associated electronic and structural symmetry breaking phenomena. For the infinite-layer nickelates, allotropes are investigated intensively. Here, using high-energy grazing-incidence x-ray diffraction, we demonstrate how in-situ temperature annealing nickelate PrNiO 2+ x ( ≈ 0) induces a giant superlattice structure. effect has maximum well above room temperature. By covering large scattering...
The mechanism of unconventional superconductivity in correlated materials remains a great challenge condensed matter physics. recent discovery infinite-layer nickelates, as analog to high-Tc cuprates, has opened new route tackle this challenge. By growing 8 nm Pr0.8Sr0.2NiO2 films on the (LaAlO3)0.3(Sr2AlTaO6)0.7 substrate, we successfully raise transition temperature Tc from 9 K widely studied SrTiO3-substrated nickelates into 15 K. combining x-ray absorption spectroscopy with...