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Criteria for ferromagnetic–insulator–ferromagnetic tunneling |
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| Authors: | Johan J kerman R Escudero C Leighton S Kim D A Rabson Renu Whig Dave J M Slaughter Ivan K Schuller |
| Institution: | a Physics Department 0319, University of California, La Jolla, San Diego, CA 92093, USA b Department of Physics, PHY 114, University of South Florida, Tampa, FL 33620, USA c Motorola Labs, Physical Sciences Research Laboratories, Tempe, AZ 85284, USA d IIM, Universidad Nacional Autonoma de Mexico, A Postal 70-360, Mexico, D.F. 04510, Mexico |
| Abstract: | The Rowell criteria, commonly used to identify tunneling in magnetic tunnel junctions (MTJ), are scrutinized. While neither the exponential-thickness dependence of the conductivity nor fits of non-linear transport data are found to be reliable tunneling criteria, the temperature-dependent conductivity does remain a solid criterion. Based on experimental studies of the bias and temperature-dependent resistance and magnetoresistance of MTJs, with and without shorted barriers, a new set of criteria is formulated. |
| Keywords: | Magnetoresistance Thin films—trilayer Tunneling |
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