Applied Physics Letters

Equilibrium kink-like torsion deformation of a magnetoactive elastomer under a magnetic field

Y Y. I. Dzhezherya (V.G. Baryakhtar Institute of Magnetism of the National Academy of Sciences of Ukraine 1 , 36-b, Akademika Vernadsʹkoho Blvd., Kyiv 03142,) A A. V. Kyryliuk (V.G. Baryakhtar Institute of Magnetism of the National Academy of Sciences of Ukraine 1 , 36-b, Akademika Vernadsʹkoho Blvd., Kyiv 03142,) S S. V. Cherepov (V.G. Baryakhtar Institute of Magnetism of the National Academy of Sciences of Ukraine 1 , 36-b, Akademika Vernadsʹkoho Blvd., Kyiv 03142,) Y Y. B. Skirta (V.G. Baryakhtar Institute of Magnetism of the National Academy of Sciences of Ukraine 1 , 36-b, Akademika Vernadsʹkoho Blvd., Kyiv 03142,) S S. O. Reshetniak (V.G. Baryakhtar Institute of Magnetism of the National Academy of Sciences of Ukraine 1 , 36-b, Akademika Vernadsʹkoho Blvd., Kyiv 03142,) S S. M. Ryabchenko (Institute of Physics, NAS of Ukraine 3 , 46 Prospekt Nauky, Kyiv 03028,) V V. M. Kalita (V.G. Baryakhtar Institute of Magnetism of the National Academy of Sciences of Ukraine 1 , 36-b, Akademika Vernadsʹkoho Blvd., Kyiv 03142,)

Abstract

A novel effect involving the formation of a stable kink-like torsion deformation in a magnetoactive elastomer (MAE) beam subjected to a uniform magnetic field is theoretically predicted and experimentally confirmed. The phenomenon was demonstrated using an elastomer beam containing soft magnetic carbonyl iron microparticles within a silicone matrix. The torsion kink acts as a transition boundary between two undeformed homogeneous states of the beam. We show that the elastic moment is compensated by a magnetoelastic moment in the kink region, where the local magnetization of the beam is noncollinear to the applied magnetic field due to shape anisotropy. It is established that within the kink region, the MAE beam exists in a nonuniformly elastically deformed, low-symmetry magnetic state. Outside the kink, the beam's magnetization is collinear with the magnetic field, corresponding to an undeformed, high-symmetry homogeneous magnetic state.

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Article Details

Volume / Issue Vol. 129, Issue 6
Published August 10, 2026
ISSN 0003-6951
Publisher American Institute of Physics

Journal Info

Applied Physics Letters

American Institute of Physics
ISSN: 0003-6951 Physical Sciences

Authors (7)

Y

Y. I. Dzhezherya

V.G. Baryakhtar Institute of Magnetism of the National Academy of Sciences of Ukraine 1 , 36-b, Akademika Vernadsʹkoho Blvd., Kyiv 03142,

A

A. V. Kyryliuk

V.G. Baryakhtar Institute of Magnetism of the National Academy of Sciences of Ukraine 1 , 36-b, Akademika Vernadsʹkoho Blvd., Kyiv 03142,

S

S. V. Cherepov

V.G. Baryakhtar Institute of Magnetism of the National Academy of Sciences of Ukraine 1 , 36-b, Akademika Vernadsʹkoho Blvd., Kyiv 03142,

Y

Y. B. Skirta

V.G. Baryakhtar Institute of Magnetism of the National Academy of Sciences of Ukraine 1 , 36-b, Akademika Vernadsʹkoho Blvd., Kyiv 03142,

S

S. O. Reshetniak

V.G. Baryakhtar Institute of Magnetism of the National Academy of Sciences of Ukraine 1 , 36-b, Akademika Vernadsʹkoho Blvd., Kyiv 03142,

S

S. M. Ryabchenko

Institute of Physics, NAS of Ukraine 3 , 46 Prospekt Nauky, Kyiv 03028,

V

V. M. Kalita

V.G. Baryakhtar Institute of Magnetism of the National Academy of Sciences of Ukraine 1 , 36-b, Akademika Vernadsʹkoho Blvd., Kyiv 03142,

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