Abstract:
:We present a concept and prototype of a memory element based on current driven magneto-impedance (MI) effect that stores the binary data (0, 1) as the orientation of the magnetization. The magnetization orientation in the surface layer with tilted anisotropy easy axis can be switched controllably between two stable states by applying current pulses of the appropriate sign, and can be detected by sensing the impedance. We demonstrated the functioning of a non-volatile magnetic memory with a read speed performance up to and above 2 GHz. A prototype of a memory element was realized on a short piece of amorphous microwire, as this material exhibits the highest MI effect, and the required anisotropy can be quite easily obtained. Nevertheless, this concept can be extended to other materials and geometries exhibiting MI effect and possessing a required magnetic anisotropy.
journal_name
Sci Repjournal_title
Scientific reportsauthors
Ipatov M,Zhukova V,Zhukov A,Gonzalez Jdoi
10.1038/srep36180subject
Has Abstractpub_date
2016-10-26 00:00:00pages
36180issn
2045-2322pii
srep36180journal_volume
6pub_type
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