کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1543709 | 1512869 | 2016 | 5 صفحه PDF | دانلود رایگان |
• A model of heterogeneous tunnel junction is developed.
• The model takes into account Volta potential and the difference of effective masses.
• Calculations was done for Fe/MgO/Fe-like structures.
• It is shown the influence of the structure parameters on TMR.
Current in heterogeneous tunnel junctions is studied in the framework of the parabolic conduction-band model. The developed model of the electron tunneling takes explicitly into account the difference of effective masses between ferromagnetic and insulating layers and between conduction subbands. Calculations for Fe/MgO/Fe-like structures have shown the essential impact of effective mass differences in regions (constituents) of the structure on the tunnel magnetoresistance of the junction.
Journal: Physica E: Low-dimensional Systems and Nanostructures - Volume 80, June 2016, Pages 31–35