Researchers from the Institute of Physics of the Czech Academy of Sciences and Charles University have just published in Nature Electronics their new experiment in which they succeeded to write information into an antiferromagnet by femtosecond-laser pulses.
Magnetoelectric multiferroic are materials where the ferroelectric and magnetic ordering can coexist and be mutually coupled. This phenomenon is called magnetoelectric coupling and can in principle be used to improve magnetoelectric memories or other electric-field-controlled spintronic or magnonic devices. Unfortunately, there are a relatively small number of single-phase multiferroics in nature and their magnetoelectric coupling is lower than needed for many applications.
In a paper published in Science Advances, Libor Šmejkal with his colleagues from the Institute of Physics of the Czech Academy of Sciences in Prague reports the discovery of a Hall effect in an antiferromagnet. It is another extraordinary work by an exceptional Czech talent who as a fresh PhD graduate already enjoys the reputation of an internationally leading figure in his field.
Scientists uncovered a method for data entry and storage in computing that is 1000 times faster than in common memory media.
The new discovery not only allows a thousand times faster data storing, but it may also find applications in AI and artificial neural networks.
In its time it was one of the highest performance supercomputers in the Czech republic. The Dorje cluster solved many issues in the field of solid-state physics.
Popular video explaining principle of spin waves excited by electric component of electromagnetic radiation.
The research community is intensively searching for new materials, hopefully showing superconductivity under ambient conditions, which would solve many of the most pressing problems of the current era of information technology. For a target-oriented search of such materials, the electron properties of the basic constituents of Hund’s metals need to be understood in detail, and this requirement was lacking so far.
This new technology is behind memory applications such as computer hard disks.
