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Hopfions emerge in ferroelectrics.


ABSTRACT: Paradigmatic knotted solitons, Hopfions, that are characterized by topological Hopf invariant, attract an intense attention in the diverse areas of physics ranging from high-energy physics, cosmology and astrophysics to biology, magneto- and hydrodynamics and condensed matter physics. Yet, while being of broad interest, they remain elusive and under-explored. Here we demonstrate that Hopfions emerge as a basic configuration of polarization field in confined ferroelectric nanoparticles. Our findings establish that Hopfions are of fundamental importance for the electromagnetic behavior of the nanocomposits and can result in advanced functionalities of these materials.

SUBMITTER: Luk'yanchuk I 

PROVIDER: S-EPMC7229001 | biostudies-literature | 2020 May

REPOSITORIES: biostudies-literature

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Hopfions emerge in ferroelectrics.

Luk'yanchuk I I   Tikhonov Y Y   Razumnaya A A   Vinokur V M VM  

Nature communications 20200515 1


Paradigmatic knotted solitons, Hopfions, that are characterized by topological Hopf invariant, attract an intense attention in the diverse areas of physics ranging from high-energy physics, cosmology and astrophysics to biology, magneto- and hydrodynamics and condensed matter physics. Yet, while being of broad interest, they remain elusive and under-explored. Here we demonstrate that Hopfions emerge as a basic configuration of polarization field in confined ferroelectric nanoparticles. Our findi  ...[more]

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