| Autor: |
Jué, Emilie, Iankevich, Gleb, Reisinger, Thomas, Hahn, Horst, Provenzano, Virgil, Pufall, Matthew R., Haygood, Ian W., Rippard, William H., Schneider, Michael L. |
| Předmět: |
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| Zdroj: |
Journal of Applied Physics; 2/21/2022, Vol. 131 Issue 7, p1-6, 6p |
| Abstrakt: |
We have measured the synaptic properties of a magnetic Josephson junction (MJJ) consisting of a barrier of amorphous Ge containing size-selected Fe nanoclusters between two Nb electrodes. We show that the critical current of the device varies with the magnetic order of the clusters and that the magnetic order can be tuned in a quasi-analog way with short electrical pulses of 16 pJ applied through the device. This is the first demonstration of critical current tuning via magnetic order in a nano-clustered MJJ in a material system other than SiMn. This result eliminates the need for a postdeposition annealing step for synaptic MJJs in neuromorphic applications and opens new options to optimize materials, which has the potential to improve the performance of the MJJs and provide a better understanding of the physics of the device. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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