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The rotation of bloch walls

ВРАЩЕНИЕ ГРАНИЦ ДОМЕ НОВ

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Cechoslovackij fiziceskij zurnal B Aims and scope

Abstract

A Bloch wall has an integral magnetic moment which is due to the spatial distribution of the magnetic moments of the spin. The external magnetic field thus acts on the wall with a torque, which leads to the rotation of the “sub-domains” and therefore to deformation of the walls. A theory of this rotation is given and from it a microphysical model of the undulatory surface structure in uniaxial ferromagnets is derived. Experiments performed on magnetoplumbite single crystals fully confirm the theoretical assumptions.

Abstract

В результате простра нственного распреде ления магнитных спиновых м оментов у границ доменов проя вляется полный магни тный момент. Внешнее магнитное по ле потом действует на границы доменов крутильным м оментом, который вызывает вра щение „субдоменов“, а тем и д еформацию границ дом енов. Предлагается теория вращения, на основе которой был а построена микроско пическая модель волнообразно й поверхностной структуры в одноосны х ферромагнетиках. Оп ыты, проделанные на монок ристаллах магнетоплюмбита, пол ностью подтверждают теоретические предп оложения.

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Authors and Affiliations

  1. Institute of Physics, Czechosl. Acad. Sci., Prague

    J. Kaczér & R. Gemperle

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  1. J. Kaczér
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  2. R. Gemperle
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Our thanks go to J. Fousek and Z. Málek who by reading this paper contributed greatly to the clarity of its presentation.

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Kaczér, J., Gemperle, R. The rotation of bloch walls. Czech J Phys 11, 157–170 (1961). https://doi.org/10.1007/BF01687292

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  • DOI: https://doi.org/10.1007/BF01687292

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