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Research of the Effects of Integration into Armor on the Performanec of Spintronic Microwave Detectors
ARMY TANK AUTOMOTIVE RESEARCH DEVELOPMENT AND ENGINEERING CENTER WARREN MI
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The authors studied the effects of different types of armor on the performance of spin-torque microwave detectors STMD. Working prototypes of novel nano-sized spintronic sensors of microwave radiation for battlefield anti-radar and wireless communications applications are being integrated into Sensor Enhanced Armor SEA and Multifunctional Armor MFA and tested in SEA-NDE Lab at TARDEC. The preliminary theoretical estimations have shown that STMD based on the spin-torque effect in magnetic tunnel junctions MTJ, when placed in the external electromagnetic field of a microwave frequency, can work as diode detectors with the maximum theoretical sensitivity of 1000 VW. These STNO detectors could be scaled to sub-micron size, are frequency-selective and tunable, and are tolerant to ionizing radiation. We studied the performance of a STMD in two different dynamical regimes of detector operation in well-known traditional in-plane regime of STMD operation and in recently discovered novel out-of-plane regime.
APPROVED FOR PUBLIC RELEASE