Magnetically induced variations in phonon frequencies

Joo Hyoung Lee, Young Chung Hsue, Arthur J Freeman

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The long-standing question of the existence of phonon-magnetism interactions in metals is examined from first principles. Through density-functional-based linear-response calculations, we show that the phonon frequencies of fcc Ni have an explicit and appreciable dependence on its magnetic moment: the frequencies increase with the magnetic moment near the Brillouin zone center, whereas the situation becomes reversed near the zone boundary, and this behavior originates from the combined role of the spin-dependent screening due to the electrons and the effect of magnetostriction.

Original languageEnglish
Article number172405
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume73
Issue number17
DOIs
Publication statusPublished - 2006

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Magnetic moments
magnetic moments
Magnetostriction
Magnetism
magnetostriction
Brillouin zones
Screening
screening
Metals
Electrons
metals
electrons
interactions

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Magnetically induced variations in phonon frequencies. / Lee, Joo Hyoung; Hsue, Young Chung; Freeman, Arthur J.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 73, No. 17, 172405, 2006.

Research output: Contribution to journalArticle

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