Chiang Mai Journal of Science

Effect of Interfacial Scattering on Resonance Peaks in Conductance Spectra of Metal/ferromagnet/metal Heterostructures

Paper Type	Contributed Paper
Title	Effect of Interfacial Scattering on Resonance Peaks in Conductance Spectra of Metal/ferromagnet/metal Heterostructures
Author	Krisakron Pasanai
Email	krisakronmsu@gmail.com
Abstract:  The tunneling conductance spectra of a metal/ferromagnet/metal (M/FM/M) double junction system were theoretically studied based on a scattering approach in a ballistic regime. At the first and second interfaces, the scattering potentials, spin-flip and non-spin-flip scattering, were set to be distinguishable. It was found that the resonance peaks could reach a maximum value when the non-spin-flip scattering at both interfaces were approximately equal in magnitude. This supports why researchers have modeled these two potentials as the same in previous calculations. When the spin-flip scattering at the interfaces is present, the resonance peaks of the conductance spectra split in the region of the energy are larger than those at the bottom of the minority band of the ferromagnet. This kind of scattering mostly suppresses those resonance peaks. However, all the above effects strongly depend on electron energy in the dispersion.
Start & End Page	226 - 233
Received Date	2014-04-10
Revised Date
Accepted Date	2014-06-04
Full Text	Download
Keyword	tunneling conductance spectra, magnetic double junction, spin-flipand non-spin-flip scattering, resonance peak splitting
Volume	Vol.43 No.1 (JANUARY 2016)
DOI
Citation	Pasanai K., Effect of Interfacial Scattering on Resonance Peaks in Conductance Spectra of Metal/ferromagnet/metal Heterostructures, Chiang Mai J. Sci., 2016; 43(1): 226-233.
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