Abstract

Phonon dispersion curves of the [110] T1 branch for pure Pt, Pt 90 Fe 10 , Pt 94 Mn 6 , and Pt 87 V 13 alloys were measured to study the Fermi surface effects using neutron inelastic scattering. For pure Pt, the existence of the Kohn anomaly was confirmed. For the other Pt alloys, however, the Kohn anomaly of the [110] T1 phonon branch was strongly suppressed by alloying at less than 10 at. % of 3d transition elements, although the satellite diffuse peaks along the [100] axis have been reported for these alloys in the previous papers as an enhanced screening effect of impurities due to the special shapes of the Fermi surfaces of Pt. A question is raised on the Fermi surface effects in Pt and Pt alloys.

Full Text
Paper version not known

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.