spin polarization – TechConnect Briefs

Multilayered nanostructures with controlled magnetic configurations

Sahakyan A.S., Movsesyan R.M., Kocharian A.N., California State University, US

We consider structures consisting of repeating ferromagnetic and nonmagnetic layers. The periodicity of the potential profile, consisting of alternating magnetic barriers and non-magnetic quantum wells, is broken by noncollinearity or noncomplanarity of the magnetizations of [...]

Resonance transmission of the electron wave through the nanofilms containing a magnetic quantum well

Sahakyan A.S., Movsesyan R.M., Kocharian A.N., California State University Los Angeles, US

The transmission of an electron wave through so called a magnetic resonance diode is considered in semiconductor nanofilms consisting of two nonmagnetic barriers separated by a quantum (magnetic) well subjected to an external magnetic field. [...]

The manifestation of the one-dimensional non-collinear spin-dependent scattering on magnetized nano-element structures

Sahakyan A.S., Movsesyan R.M., Kocharian A.N., California State University Los Angeles, US

The transfer-matrix approach is used to investigate the scattering of spin-polarized electron and neutron waves on the simple magnetized nanoelement structures which energetic profiles presents a finite potential magnetic barrier, in particular, of rectangular form. [...]

Computer Simulations of CrO2 as a Spin Polarized Material for Spintronics

Kaur R., Mallia G., Yates K.A., Harrison N.M., Imperial College London, UK

Despite theoretical predictions of chromium dioxide being a half-metallic ferromagnet. Devices based on chromium dioxide have performed poorly. One major issue is the influence of defects on the electronic structure and magnetic properties as well [...]

Spin Polarization in GaAs/Al0.24Ga0.76As Heterostructures

Ashok A., Akis R., Vasileska D., Ferry D.K., Arizona State University, US

Spintronics is a new branch of electronics which involves the active control and manipulation of spin degrees of freedom in solid-state devices. Spin transport differs from charge transport as spin is a non-conserved quantity in [...]