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Open Access Nano Express

The Bloch point in uniaxial ferromagnets as a quantum mechanical object

Andriy Borisovich Shevchenko1 and Maksym Yurjevich Barabash2*

Author Affiliations

1 G.V. Kurdymov Institute of Metal Physics, National Academy of Science of Ukraine, 36 Vernadskogo pr., Kyiv 142, 03680, Ukraine

2 Technical Centre, National Academy of Science of Ukraine, 13 Pokrovskya St, Kyiv 04070, Ukraine

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Nanoscale Research Letters 2014, 9:132  doi:10.1186/1556-276X-9-132

Published: 19 March 2014

Abstract

Quantum effects such as tunneling through pinning barrier of the Bloch Point and over-barrier reflection from the defect potential of one have been investigated in ferromagnets with uniaxial strong magnetic anisotropy. It is found that these phenomena can be appeared only in subhelium temperature range.

Keywords:
Quantum tunneling; The bloch point; Domain walls; Vertical bloch lines; uniaxial magnetic film; Quantum depinning; Magnetic field; Potential barrier; Ferromagnetic materials