Non-collinear magnetoelectronics

By A. Brataas, G. Bauer, P. Kelly. 2006

323 citations recorded by the source corpus.

The electron transport properties of hybrid ferromagnetic|normal metal structures such as multilayers and spin valves depend on the relative orientation of the magnetization direction of the ferromagnetic elements. Whereas the contrast in the resistance for parallel and antiparallel magnetizations, the so-called giant magnetoresistance, is relatively well understood for quite some time, a coherent picture for non-collinear magnetoelectronic circuits and devices has evolved only recently. We review here such a theory for electron charge and spin transport with general magnetization directions that is based on the semiclassical concept of a vector spin accumulation. In conjunction with first-principles calculations of scattering matrices many phenomena, e.g. the current-induced spin-transfer torque, can be understood and predicted quantitatively for different material combinations.

Subfields: Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/d7ea20d469096a6020812b907c7a0ce310630051

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Atomic and Molecular Physics, and Optics

In Electronic, Optical and Magnetic Materials

Citations in the corpus

Shaped angular dependence of the spin-transfer torque and microwave generation without magnetic field (2007, background): “nt is related to the transverse spin polarisation of the current (transverse meaning perpendicular to the magnetization axis of the element) and can be derived from spin-dependent transport equations [8, 9, 10, 11, 12, 13, 14, 15, 16, 17]. On the other hand, the description of the magnetic excitatio”
Colloquium : Nonequilibrium effects in superconductors with a spin-splitting field (2017, background): “In the normal state, solutions of this kinetic equation are discussed for example in (Brataas et al., 2006).”
Transmission of electrical signals by spin-wave interconversion in a magnetic insulator (2010, methodology): “11), the magnitude of the spin-exchange energy density at the interface is estimated to be , 16 erg cm 2 2 ; alternatively, the magnitude of the mixing conductance 23 is estimated as 3 3 10 12 cm 2 2 (see Supplementary Information section B for details).”
Antiferromagnetic spintronics (2016, background): “…where μ is the magnonic chemical potential, Tm and Te are the magnon and electron temperatures, respectively, g↑↓ is the (real part of the) spin-mixing conductance (Tserkovnyak et al., 2005; Brataas, Bauer, and Kelly, 2006) parametrizing the exchange-coupling strength at the interface, DðϵÞ is…”
Near room-temperature formation of a skyrmion crystal in thin-films of the helimagnet FeGe. (2011, background): “On the other hand, electric-current-driven motion of skyrmions themselves will be possible through spin-transfer torqu”