Large tunnel magnetoresistance in a fully epitaxial double-barrier magnetic tunnel junction of Fe/MgO/Fe/γ-Al2O3/Nb-doped SrTiO3

We report large tunnel magnetoresistance (TMR) ratios of up to 219% at 300 K and 366% at 3.7 K obtained for a high-quality fully epitaxial double-barrier magnetic tunnel junction (MTJ) composed of Fe/MgO/Fe/γ-Al2O3/Nb-doped SrTiO3. The obtained TMR ratios are among the highest values reported in Fe/...

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Bibliographic Details
Main Authors: Ryota Suzuki, Yuriko Tadano, Masaaki Tanaka, Shinobu Ohya
Format: Article
Language:English
Published: AIP Publishing LLC 2020-08-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0002536