Within spin-based electronics (spintronics), a novel method promising ultrafast and secure magnetic reminiscence is predicated on antiferromagnets as lively components. These supplies with out macroscopic magnetization however with a staggered orientation of their microscopic magnetic moments show intrinsic dynamics within the Terahertz (THz) vary and are strong towards magnetic fields.
However, technologically related read-out in spintronics requires important magnetoresistance results, i.e., resistance modifications bigger than 20 % ought to be related to a reorientation of the staggered magnetization. This represents a serious problem in antiferromagnetic spintronics.
New method permits the well-established read-out strategies of ferromagnets
As printed within the on-line science journal Nature Communications, scientists of the Institute of Physics of Johannes Gutenberg University Mainz (JGU), inside an international collaboration, at the moment are in a position to reveal a robust change coupling of very skinny ferromagnetic layers to the prototypical antiferromagnetic spintronics compound of manganese and gold (Mn2Au). This permits us to learn from the well-established read-out strategies of ferromagnets, whereas the important benefits of antiferromagnetic spintronics are solely barely diminished.
S. P. Bommanaboyena et al, Readout of an antiferromagnetic spintronics system by sturdy change coupling of Mn2Au and Permalloy, Nature Communications (2021). DOI: 10.1038/s41467-021-26892-7
Citation:
Readout of an antiferromagnetic spintronics system by sturdy change coupling (2021, November 26)
retrieved 26 November 2021
from https://phys.org/news/2021-11-readout-antiferromagnetic-spintronics-strong-exchange.html
This doc is topic to copyright. Apart from any truthful dealing for the aim of personal examine or analysis, no
half could also be reproduced with out the written permission. The content material is supplied for info functions solely.
