Spin-density distribution in Ca2RuO4: Searching for magnetic oxygen moments
The Mott insulator Ca2RuO4 represents a challenging system to test theoretical models with strong spin-orbit coupling while the complete description of the Mott state has not yet been found. Measurements of the magnon dispersion indicate an extra low-energy branch that was attributed to magnetic moments on the O sites. This interpretation was supported by DFT calculations indeed finding sizeable O moments. Here we propose to directly study the spin-density distribution with the flipping ratio methods by applying the magnetic field along the direction of weak ferromagnetism. This study will unambiguously clarify the impact of magnetic moments on O in Ca2RuO4.
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JENNI Kevin; M. Braden; RODRIGUEZ VELAMAZAN Jose Alberto; STUNAULT Anne and TEWARI Akshay. (2021). Spin-density distribution in Ca2RuO4: Searching for magnetic oxygen moments. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-51-581
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