Crystal field states of Tb3+ in the pyrochlore spin liquid Tb2Ti2O7 from neutron spectroscopy

Article

关键词: ANTIFERROMAGNET TB2TI2O7;   

DOI  :  10.1103/PhysRevB.91.224430

来源: SCIE

【 摘 要 】

We report time-of-flight neutron scattering measurements of the magnetic spectrum of Tb3+ in Tb2Ti2O7. The data, which extend up to 120 meV and have calibrated intensity, enable us to consolidate and extend previous studies of the single-ion crystal field spectrum. We successfully refine a model for the crystal field potential in Tb2Ti2O7 without relying on data from other rare-earth titanate pyrochlores, and we confirm that the ground state is a non-Kramers doublet with predominantly vertical bar +/- 4 > components. We compare the model critically with earlier models.

【 授权许可】

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