Specific feature of magnetooptical images of stray fields of magnets of various geometrical shapes


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Specific features of magnetooptical images (MOIs) of stray fields near the faces of prismatic hard magnetic elements have been studied. Attention has primarily been focused on MOIs of fields near faces oriented perpendicular to the magnetic moment of hard magnetic elements. With regard to the polar sensitivity, MOIs have practically uniform brightness and geometrically they coincide with the figures of the bases of the elements. With regard to longitudinal sensitivity, MOIs consist of several sectors, the number of which is determined by the number of angles of the image. Each angle is divided by the bisectrix into two sectors of different brightnesses; therefore, the MOI of a triangular magnet consists of three sectors. A rectangle consists of four sectors separated by the bisectrices of the interior angles. In all types of figures, these lines converge at the center of the figure and form a singular point of the source or sink type.

Sobre autores

V. Ivanov

Ural Federal University

Autor responsável pela correspondência
Email: vladimir.ivanov@urfu.ru
Rússia, ul. Mira 19, Ekaterinburg, 620002

A. Koveshnikov

Ural Federal University

Email: vladimir.ivanov@urfu.ru
Rússia, ul. Mira 19, Ekaterinburg, 620002

S. Andreev

Ural Federal University

Email: vladimir.ivanov@urfu.ru
Rússia, ul. Mira 19, Ekaterinburg, 620002

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