Related Experiment Video
Updated: Mar 3, 2026

Visualizing Uniaxial-strain Manipulation of Antiferromagnetic Domains in Fe1+YTe Using a Spin-polarized Scanning Tunneling Microscope
Published on: March 24, 2019
Doping Dependence of Collective Spin and Orbital Excitations in the Spin-1 Quantum Antiferromagnet
1Department of Condensed Matter Physics and Materials Science, Brookhaven National Laboratory, Upton, New York 11973, USA.
Abstract:
We report the first empirical demonstration that resonant inelastic x-ray scattering (RIXS) is sensitive to collective magnetic excitations in S=1 systems by probing the Ni L_{3} edge of La_{2-x}Sr_{x}NiO_{4} (x=0, 0.33, 0.45). The magnetic excitation peak is asymmetric, indicating the presence of single and multi-spin-flip excitations. As the hole doping level is increased, the zone boundary magnon energy is suppressed at a much larger rate than that in hole doped cuprates. Based on the analysis of the orbital and charge excitations observed by RIXS, we argue that this difference is related to the orbital character of the doped holes in these two families. This work establishes RIXS as a probe of fundamental magnetic interactions in nickelates opening the way towards studies of heterostructures and ultrafast pump-probe experiments.
More Related Videos
Related Concept Videos
NMR Spectroscopy: Spin–Spin Coupling
Atomic Nuclei: Nuclear Spin State Overview
Atomic Nuclei: Magnetic Resonance
Atomic Nuclei: Nuclear Spin State Population Distribution
Spin–Spin Coupling: One-Bond Coupling
Valence Bond Theory

