New Scanning Millimeter Waveband Esr-Microscope With Localized Magnetic Field

The permanent magnet systems generating strong stray fields with large localization region

“…2, the values of SF component lie sufficiently above B r ¼ 4pM r for all points across the gap. The characteristic feature of this dependence is that the strong field is connected only with SF component H Z normal to the charged surface, but not with its tangential component as in system we studied before [4][5][6][7][8][9]. Note that strong field in Halbach cylinder [4] is connected with tangential component.…”

“…To characterize such inhomogeneous field, we use the introduced above integral characteristic-the average field /HS. The value of average component /H Z (r, j)S above the surface of the magnet consisting of four sectors was calculated with the help of formula (9) and it equals to /H Z SE10M r , while in a narrow gap in the system composed of pair of such magnets the field equals correspondingly to /H Z SE20M r . If both magnets of the pair consist not of four but of eight elements (Fig.…”

“…Systems of high-anisotropic magnets, which generate strong magnetic stray fields (SFs) namely the fields their strength exceeds the induction of the magnet material H4B r ¼ 4pM r [1][2][3][4][5][6][7], are of great interest as little-studied objects of magnetostatics and, besides, due to potentiality for various technical applications [8,9]. M r is the magnetization value of the magnet in zero external field (the magnet was premagnetized to saturation).…”