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Current-in-plane magnetoresistance of spin valve elliptical rings
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10.1063/1.2798495
/content/aip/journal/apl/91/15/10.1063/1.2798495
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/15/10.1063/1.2798495
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Scanning electron micrographs of (a) a Ta spin valve ring with major/minor diameter of and a width of and [(b)–(d)] NiFe rings with a width of . The arrows represent the direction of the field applied during measurement and the direction of exchange pinning. Labels for voltage and current beside the contact wires show the electrical configuration of the GMR measurement.

Image of FIG. 2.
FIG. 2.

GMR measurement of a Ta spin valve ring with major/minor diameter of and a width of . (a) Major loop and [(b) and (c)] minor loop measurements. In (a), denote the different resistance levels. A and B represent the starting points of the minor loop GMR measurements in (b) and (c); (b) when the Co layer is in a forward onion state and (c) when the Co layer is in a vortex state. The field angle and the exchange bias angle . The magnitudes of the switching fields are labeled in (b).

Image of FIG. 3.
FIG. 3.

[(a)–(c)] Major and [(d)–(f)] minor loop resistance measurements of NiFe diameter rings with width. (a) Pinning direction , field direction ; (b) , ; (c) , . The starting points for the minor loops are shown on the major loops, and the chiralities of the Co and NiFe vortices are labeled on the minor loops.

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/content/aip/journal/apl/91/15/10.1063/1.2798495
2007-10-12
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Current-in-plane magnetoresistance of spin valve elliptical rings
http://aip.metastore.ingenta.com/content/aip/journal/apl/91/15/10.1063/1.2798495
10.1063/1.2798495
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