Construction of a Bit Stream Using Telegraphic Switching of a Two-Input Magnetic Tunnel Junction
- Authors
- Bae, Gi Yoon; Suh, Dong Ik; Kim, Young-Jae; Lee, Hyungjune; Park, Wanjun
- Issue Date
- Nov-2017
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- Bit stream; magnetic tunnel junction (MTJ); telegraphic switching
- Citation
- IEEE TRANSACTIONS ON MAGNETICS, v.53, no.11
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE TRANSACTIONS ON MAGNETICS
- Volume
- 53
- Number
- 11
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/18663
- DOI
- 10.1109/TMAG.2017.2712821
- ISSN
- 0018-9464
- Abstract
- Stochastic computing with probabilistic bit streams is a useful computing method due to its advantage of a higher degree of error tolerance than the conventional binary system. To achieve computational efficiency, electronic devices with an inherent stochastic nature have been explored for integration into a stochastic computing system. In this paper, we demonstrate probabilistic bit streams obtained from the telegraphic switching of a two-input magnetic tunnel junction (MTJ). Extension of the input configuration provides an advantage in architectural comparability for applying to a practical computing circuit. We also show that an MTJ can be a generic stochastic device, whose output directly constructs bit streams representing the probabilistic weight according to two independent progammable inputs, namely, the applied magnetic field and the current.
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