Superparamagnetic perpendicular magnetic tunnel junctions for true random number generators
Publisher
AMER INST PHYSICSCitation
AIP Advances 8, 055903 (2018); doi: 10.1063/1.5006422Journal
AIP ADVANCESRights
© Author(s) 2017. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license.Collection Information
This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.Abstract
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).Note
12 month embargo; published online: 7 December 2017ISSN
2158-3226Version
Final published versionSponsors
C-SPIN, one of the six centers of STARnet, a Semiconductor Research Corporation program; MARCO; DARPA [2013-MA-2831]; NSF [ECCS-1709845]Additional Links
http://aip.scitation.org/doi/10.1063/1.5006422Scopus Count
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Except where otherwise noted, this item's license is described as © Author(s) 2017. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license.