HomeNewsPhysicsReadout of an antiferromagnetic spintronics system by sturdy change coupling

Readout of an antiferromagnetic spintronics system by sturdy change coupling

Fig. 1: Structure of the samples. a Cross part HAADF STEM picture of all the stack considered alongside the [1¯10]-direction of Mn2Au(001). The inset reveals an area Fourier remodel of the Mn2Au area. b Magnified picture of the Mn2Au/Py interface (area indicated by a rectangle in a), the place Au atom columns have brilliant distinction. The inset reveals the next magnification picture overlaid with a mannequin of the crystal construction. c Crystal construction of Mn2Au with the magnetic moments pointing alongside the straightforward [1¯10]-direction. d STM picture of a pristine Mn2Au(001) skinny movie floor with steps akin to half unit cells (0.42 nm) indicated by the yellow strains, one unit cell (0.85 nm) indicated by the blue strains, and three unit cells (2.55 nm) indicated by the grey line. Credit: DOI: 10.1038/s41467-021-26892-7

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 , 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.

Antiferromagnets prove their potential for spin-based information technology

More info:
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

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Readout of an antiferromagnetic spintronics system by sturdy change coupling (2021, November 26)
retrieved 26 November 2021
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