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

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 نشر من قبل Emma Chung
 تاريخ النشر 2003
  مجال البحث فيزياء
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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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