Diffusive model of current-in-plane-tunneling in double magnetic tunnel junctions

TL;DR

This paper introduces a diffusive model for current-in-plane tunneling in double magnetic tunnel junctions, highlighting unique features characterized by two length scales, useful for measuring key device parameters.

Contribution

The paper presents a novel diffusive transport model for double barrier magnetic tunnel junctions, incorporating two length scales to describe specific tunneling features.

Findings

Model captures features with two length scales

Enables measurement of magnetoresistance

Applicable to unpatterned stacks

Abstract

We propose a model that describes current-in-plane tunneling transport in double barrier magnetic tunnel junctions in diffusive regime. Our study shows that specific features appear in double junctions that are described by introducing two typical length scales. The model may be used to measure the magnetoresistance and the resistance area product of both barriers in unpatterned stacks of double barrier magnetic tunnel junctions.