期刊
AIP ADVANCES
卷 8, 期 5, 页码 -出版社
AMER INST PHYSICS
DOI: 10.1063/1.5006422
关键词
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资金
- C-SPIN, one of the six centers of STARnet, a Semiconductor Research Corporation program
- MARCO
- DARPA [2013-MA-2831]
- NSF [ECCS-1709845]
Superparamagnetic perpendicular magnetic tunnel junctions are fabricated and analyzed for use in random number generators. Time-resolved resistance measurements are used as streams of bits in statistical tests for randomness. Voltage control of the thermal stability enables tuning the average speed of random bit generation up to 70 kHz in a 60 nm diameter device. In its most efficient operating mode, the device generates random bits at an energy cost of 600 fJ/bit. A narrow range of magnetic field tunes the probability of a given state from 0 to 1, offering a means of probabilistic computing. (C) 2017 Author(s).
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