A spin-valve-like magnetoresistance of an antiferromagnet-based tunneljunction

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11320%2F11%3A10103803" target="_blank" >RIV/00216208:11320/11:10103803 - isvavai.cz</a>
Alternative codes found
RIV/68378271:_____/11:00366915
Result on the web
<a href="http://www.nature.com/nmat/journal/v10/n5/full/nmat2983.html" target="_blank" >http://www.nature.com/nmat/journal/v10/n5/full/nmat2983.html</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/NMAT2983" target="_blank" >10.1038/NMAT2983</a>

Result language
angličtina
Original language name
A spin-valve-like magnetoresistance of an antiferromagnet-based tunneljunction
Original language description
A spin valve is a microelectronic device in which high-and low-resistance states are realized by using both the charge and spin of carriers. Spin-valve structures used in modern hard-drive read heads and magnetic random access memories comprise two ferromagnetic electrodes whose relative magnetization orientations can be switched between parallel and antiparallel configurations, yielding the desired giant or tunnelling magnetoresistance effect(1). Here we demonstrate more than 100% spin-valve-like signal in a NiFe/IrMn/MgO/Pt stack with an antiferromagnet on one side and a nonmagnetic metal on the other side of the tunnel barrier. Ferromagnetic moments in NiFe are reversed by external fields of approximately 50 mT or less, and the exchange-spring effect(2) of NiFe on IrMn induces rotation of antiferromagnetic moments in IrMn, which is detected by the measured tunnelling anisotropic magnetoresistance(3). Our work demonstrates a spintronic element whose transport characteristics are gove
Czech name
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Czech description
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Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
BM - Solid-state physics and magnetism
OECD FORD branch
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Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2011
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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