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The role of electronic correlations on the phonon modes of MnO and NiO

E. M. L. Chung·D. McK. Paul·G. Balakrishnan·M. R. Lees·A. Ivanov·M. Yethiraj
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Abstract

The possibility of magnetic-order induced phonon anisotropy in single crystals of MnO and NiO is investigated using inelastic neutron scattering. Below Tn both compounds exhibit a splitting in their transverse optical phonon spectra of approximately 10%. This behavior illustrates that, contrary to general assumption, the dynamic properties of MnO and NiO are substantially non-cubic.

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E. M. L. Chung, D. McK. Paul, G. Balakrishnan, M. R. Lees, A. Ivanov, M. Yethiraj. 2003-08-10. The role of electronic correlations on the phonon modes of MnO and NiO. https://doi.org/10.1103/physrevb.68.140406

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