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A GMR device based on a magnetic nanostructure with a δ-doping
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A GMR device based on a magnetic nanostructure with a δ-doping
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Journal Article
A GMR device based on a magnetic nanostructure with a δ-doping
2017
Overview
We study how to manipulate by the
δ
-doping a giant magnetoresistance (GMR) device, which can be realized experimentally by depositing two parallel ferromagnetic stripes on top and bottom of the semiconductor
GaAs/Al
x
Ga
1
-
x
As
heterostructure. We demonstrate an obvious GMR effect in the device with a
δ
-doping. We also reveal that the magnetoresistance ratio depends not only on the weight but also on the position of the
δ
-doping. These interesting results will be helpful for designing controllable GMR devices.
Publisher
Springer US,Springer Nature B.V
