Technological Breakthrough: Hopfins Unveil 3D Magnetic Miracles

The first experimental evidence of the existence of hopfiones – magnetic spin structures predicted decades ago were presented. Research, published in the journal Nature was made jointly by scientists from Sweden, Germany, and China.

Philip Rybakov, a researcher from the University of Upsal, emphasized the significance of this discovery from both the fundamental and applied point of view. A new interaction between experimental physics and abstract mathematical theory can lead to the use of hopfio in spintronics.

Spintronika is a promising research area that studies the spin of electrons and opens up new opportunities for creating electronic devices. Magnetic reservations and hopfins, which are topological structures, attract the attention of scientists with their unique properties that are important for spintronic applications. Unlike two-dimensional skin, hopfions have a three-dimensional structure, reminiscent of closed, twisted rod strings in the form of a donut.

This study for the first time demonstrates the stable existence of hopfion in the FeGE type B20, using the methods of translucent electron microscopy and holographia. The results are fully consistent with micromagnetic simulations.

The opening of the Hopfiones opens up new horizons in experimental physics, such as the study of the interaction of hopfion with electric and spin currents, their dynamics, as well as the search for other crystals in which they are stable.

Rybakov notes that hopfions can play an important role in the development of three-dimensional technologies, such as estimated memory, neuromorphic calculations, and cubes. Due to its three-dimensionality, the Hopfions have an additional degree of freedom compared to the skin, which allows them to move in three dimensions.

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