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الكثافة الحالية للفونون من LaFeAsO1-xFx

Phonon Density of States of LaFeAsO1-xFx

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 نشر من قبل Mark D. Lumsden
 تاريخ النشر 2008
  مجال البحث فيزياء
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We have studied the phonon density of states (PDOS) in LaFeAsO1-xFx with inelastic neutron scattering methods. The PDOS of the parent compound(x=0) is very similar to the PDOS of samples optimally doped with fluorine to achieve the maximum Tc (x~0.1). Good agreement is found between the experimental PDOS and first-principle calculations with the exception of a small difference in Fe mode frequencies. The PDOS reported here is not consistent with conventional electron-phonon mediated superconductivity.



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