Abstract
The constructed thermodynamic theory of magnetic birefringence of transverse sound in easyplane weak ferromagnets with an axial basal anisotropy induced by boundary conditions has been generalized to the case of additional inclusion of the hexagonal anisotropy enhanced by isotropic mechanical stresses. The magnetoelastic contribution ΔCa to the effective elastic modulus C44eff = C44 + ΔCa, which determines the phase velocity of the magnetic mode of the acoustic wave in a crystal, has been calculated. It has been shown that the induced anisotropy with the twofold and sixfold symmetry leads to the appearance of an additional anisotropic term of the fourfold symmetry in the contribution ΔCa. The developed theory has made it possible to satisfactorily describe the existing experiments.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.