Doping dependence of collective spin and orbital excitations in the Spin-1 quantum antiferromagnet La₂₋ₓSrₓNiO₄ oObserved by X rays.
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 L₃ edge of La₂₋ₓSrₓNiO₄ (x=0, 0.33, 0.45). The magnetic excitation peak is asymmetric, indicating the presence of single and mu...
| Main Authors: | , , , , , , , , , , , , , , , , |
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| 格式: | Journal article |
| 语言: | English |
| 出版: |
American Physical Society
2017
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| 主题: |