Spintronics-Info is a news hub and knowledge center born out of keen interest in spintronic technologies.
Spintronics is the new science of computers and memory chips that are based on electron spin rather than (or in addition to) the charge (used in electronics). Spintronics is an exciting field that holds promise to build faster and more efficient computers and other devices.
Researchers from Australia's RMIT found that a 'stacked' 2D material Fe3GeTe2 (or FGT) features hard magnetic properties coupled with a near square-shared hysteresis loop and perpendicular magnetic anisotropy.
These promising properties mean that this material could be a promising candidate for extremely thin (200 nm) vdW-heterostructure spintronics devices.
Researchers from Singapore's NUS and the University of Missouri developed a new all-electric method to measure the spin texture of topological insulators. The researchers say that this method could lead to an easier (and cheaper) methods of developing spintronics devices.
The new work revealed a close relation between the spin texture of topological surface states (TSS) and a new kind of magneto-resistance. The researchers observed the second order nonlinear magneto-resistance in a prototypical 3D TI Bi2Se3 films, and showed that it is sensitive to TSS. In contrast with conventional magneto-resistances, this new magneto-resistance shows a linear dependence on both the applied electric and magnetic fields.
The UK National Physical Laboratory (NPL) published this video of a lecture by Yoshi Chika Otani from Japan's RIKEN and the University of Tokyo titled "Spin Conversion Phenomena in Spintronics"
The lecture covers all the recently discovered conversion phenomena, such as the direct and inverse spin Hall effects, spin Seebeck and Peltier effects, spin pumping, and the inverse Faraday effect.
Perovskite materials offer exciting properties which make them useful for solar panels, fuel cells, lasers, displays and more. Many believe Perovskites are the future of solar power and some estimate that perovskite adoption is right around the corner. Our new video below gives a short introduction to perovskites:
For more information on perovskites and to stay updated on these exciting materials, check out our Perovskite-Info knowledge hub!
Researchers from Johns Hopkins University and the US NIST discovered that magnetisation in a cobalt-iron-boron layer could be flipped between stable states using only electric current, without an external magnetic field. The researchers call this effect Zero-Field Switching (ZFS).
The researchers say that this effect was not theoretically predicted, as all previous devices of this type have required a magnetic field or other more complex measures to change the material's magnetisation.
Researchers from Johannes Gutenberg University Mainz (JGU), the University of Konstanz and Tohoku University developed a spin-valve structure based on several ferromagnets - which can detect the efficiency of magnon currents depending on the magnetic configuration of the device.
The researchers say that this is a new "building block" for Magnon Spintronics, and this kind of device could be used to the transmission or blocking of incoming spin information.
Spin caloritronics is a new emerging field that explores how heat currents transport electron spin. One interesting application in this field is the use of waste heat to create spintronics devices that do not require any external power to operate.
The thermally driven transport application of spin caloritronics is based on the Seebeck effect - which takes use of the temperature difference between a ferromagnet (FM) and a nonmagnetic metal (NM) to create a thermoelectric voltage.