Researchers report on electric field controlled motion in Skyrmions

Researchers from Shinshu University, the Chinese University of Hong Kong, the University of Tokyo, Tsinghua University, Kyoto University and Nanyang Technological University have experimentally demonstrated a breakthrough in manipulation of skyrmions using only electric field.

The team, led by Professor Xiaoxi Liu of Shinshu University, designed and fabricated magnetic multilayer films in the form of racetracks where the thickness of the films had a slope. They demonstrated that many skyrmion bubbles can be created and directionally displaced about 10 micrometres by applying a voltage as low as 9 volt in a repeatable manner. They also found that the domain wall displacement and velocity induced by the variation of electric field are proportional to the absolute value of voltage.

Researchers announce a breakthrough in pinning domain wall propagation

Researchers from Sultan Qaboos University in Oman, Johannes Gutenberg-Universität Mainz in Germany and Nanyang Technological University in Singapore have experimentally demonstrated a breakthrough in one of the major problems blocking the adoption of magnetic domain wall memory.

When recording each fresh bit of information onto a racetrack, there is considerable uncertainty about where each magnetic domain starts and ends, and an incorrectly-written bit can easily lead to the corruption of bits. The team, led by Professor Rachid Sbiaa of Sultan Qaboos University, devised a method to overcome this difficulty by using a staggered nanowire (see figure below).

Video lecture - Spin Conversion Phenomena in Spintronics

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.

Introduction to perovskite materials

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 produce controllable and stable skyrmions using ultra-short laser pulses

Researchers from the EPFL managed to produce controllable and stable skyrmions using laser pulses. The scientists could write and erase skyrmions in less than a few hundred nanoseconds to a few microseconds.

To create the skyrmions, the researchers used iron-germanium alloy, which can offer skyrmions at about 0 degrees Celsius, very closet o room temperature. The ultra-short laser pulses create an ultra-fast temperature jump, and the super-cooling effect at the end of the jump restricts the place in which skyrmions exist - to places in which they do not exist normally.

Spintronics at the interface - video lecture

Zeila Zanolli,a principal investigator at RWTH Aachen University and the European Theoretical Spectroscopy Facility (ETSF) gave a lecture at the MaX Conference on the Materials Design Ecosystem at the Exascale last month, titled "Spintronics at the interface".

Zeila specifically discusses the interface between Graphene and BaMnO3 materials.