Issues »  Volume 19, Issue 2

Macroscopic Quantum Effects in Domain Boundaries of the Uniaxial Ferromagnetic Films with the Strong Magnetic Anisotropy

A. B. Shevchenko

G.V. Kurdyumov Institute for Metal Physics, NAS of Ukraine, 36 Academician Vernadsky Blvd., UA-03142 Kyiv, Ukraine

Received: 23.03.2018; final version - 03.04.2018. Download: PDF logoPDF

The quantum effects (tunnelling, reflection above a barrier, oscillations) occurring for nanosize elements of the interior structure of domain walls (vertical Bloch lines and Bloch points) in the ferromagnetic films with a strong uniaxial magnetic anisotropy are reviewed. Conditions for the realization of these phenomena are determined. Based on the quantum properties of a pair of unipolar vertical Bloch lines in the domain wall of the stripe magnetic domain, a new-type memory cell ‘bit + qubit’ is proposed for a prospective memory device with a hybrid form of the information recording.

Keywords: ferromagnetic film, domain wall, effective mass, vertical Bloch line, Bloch point, macroscopic quantum effects.

PACS: 75.30.Gw, 75.45.+j, 75.60.Ch, 75.70.Ak, 75.70.Kw, 75.75.Fk, 75.78.Fg, 85.70.Kh

DOI: https://doi.org/10.15407/ufm.19.02.115

Citation: A. B. Shevchenko, Macroscopic Quantum Effects in Domain Boundaries of the Uniaxial Ferromagnetic Films with the Strong Magnetic Anisotropy, Usp. Fiz. Met., 19, No. 2: 115—151 (2018) (in Russian), doi: 10.15407/ufm.19.02.115

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