Transmission and Reflectionof Spin-Polarized Electrons Propagating through a Model Domain Wall

• Authors: R. Sýkora , I. Turek
• Languages of publication: EN

Abstracts

EN

An analytically tractable simple model of a magnetic domain wall in a ferromagnetic metal is considered and, assuming the ballistic regime of electronic transport, transmission and reflection coefficients of such a wall are calculated within the stationary scattering theory. It is rederived that for realistic values of electron energies and domain wall widths the transmission coefficient is very close to one and thus an ideal domain wall itself (i.e. not taking into account other aspects such as disorder) does not essentially represent a hindrance to the transport.

Keywords

EN

72.25.Ba; 75.60.Ch

Discipline

• 75.60.Ch: Domain walls and domain structure(for magnetic bubbles and vortices, see 75.70.Kw)
• 72.25.Ba: Spin polarized transport in metals

• Journal: Acta Physica Polonica A
• Year: 2008
• Volume: 113
• Issue: 1
• Pages: 15-18

Dates

published

2008-01

received

2007-07-09

Contributors

author

R. Sýkora

• Charles University, Faculty of Mathematics and Physics, Department of Condensed Matter Physics, Ke Karlovu 5, 12116 Prague 2, Czech Republic

author

I. Turek

• Charles University, Faculty of Mathematics and Physics, Department of Condensed Matter Physics, Ke Karlovu 5, 12116 Prague 2, Czech Republic

References

• 1. Concepts in Spin Electronics, Ed. S. Maekawa, Series on Semiconductor Science and Technology, Oxford University Press, Oxford 2006
• 2. A. Brataas, G.E.W. Bauer, P.J. Kelly, Phys. Rep. 427, 157 (2006)
• 3. K. Hong, N. Giordano, J. Phys., Condens. Matter 10, L401 (1998)
• 4. G. Tatara, H. Fukuyama, Phys. Rev. Lett. 78, 3773 (1997)
• 5. P.A.E. Jonkers, S. J. Pickering, H. De Raedt, G. Tatara, Phys. Rev. B 60, 15970 (1999)
• 6. G.G. Cabrera, L.M. Falicov, Phys. Status Solidi B 61, 539 (1974)
• 7. S. Chikazumi, Physics of Magnetism, Wiley, New York 1964, p. 186

Identifiers

DOI

10.12693/APhysPolA.113.15