Theory of the piezomagnetic effect in Mn-based antiperovskites

Pavel Lukashev, Renat F. Sabirianov, Kirill Belashchenko

Research output: Contribution to journalArticle

58 Citations (Scopus)

Abstract

Recent experimental and theoretical studies of the magnetoelectric (ME) effect in the nanocomposite structures and in laminates show an enhanced ME coefficient. These materials combine piezoelectric properties of the paramagnetic phase and piezomagnetic properties of the magnetic phase. We propose to fabricate heterostructures formed by piezoelectric materials and magnetic antiperovskites as magnetoelectric materials. We show that the magnetic structure of antiperovskite, such as Mn3 GaN, can be controlled by a small applied biaxial strain. The lowering of symmetry with the strain causes the local magnetic moments of Mn atoms to rotate from the trigonal Γ5g structure with symmetric curl of spin density in the (111) plane to a monoclinic symmetry structure. As a result, an appreciable net magnetization appears in the strained system.

Original languageEnglish (US)
Article number184414
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume78
Issue number18
DOIs
StatePublished - Nov 14 2008

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Magnetoelectric effects
Piezoelectric materials
Magnetic structure
symmetry
Magnetic moments
laminates
Laminates
Heterojunctions
Magnetization
Nanocomposites
nanocomposites
magnetic moments
Atoms
magnetization
causes
coefficients
atoms

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics

Cite this

Theory of the piezomagnetic effect in Mn-based antiperovskites. / Lukashev, Pavel; Sabirianov, Renat F.; Belashchenko, Kirill.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 78, No. 18, 184414, 14.11.2008.

Research output: Contribution to journalArticle

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