The universal magnetic tunnel junction logic gates representing 16 binary Boolean logic operations
- Authors
- Lee, Junwoo; Suh, Dong Ik; Park, Wanjun
- Issue Date
- May-2015
- Publisher
- AMER INST PHYSICS
- Citation
- JOURNAL OF APPLIED PHYSICS, v.117, no.17, pp.1 - 4
- Indexed
- SCIE
SCOPUS
- Journal Title
- JOURNAL OF APPLIED PHYSICS
- Volume
- 117
- Number
- 17
- Start Page
- 1
- End Page
- 4
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/157342
- DOI
- 10.1063/1.4916806
- ISSN
- 0021-8979
- Abstract
- The novel devices are expected to shift the paradigm of a logic operation by their own nature, replacing the conventional devices. In this study, the nature of our fabricated magnetic tunnel junction (MTJ) that responds to the two external inputs, magnetic field and voltage bias, demonstrated seven basic logic operations. The seven operations were obtained by the electric-field-assisted switching characteristics, where the surface magnetoelectric effect occurs due to a sufficiently thin free layer. The MTJ was transformed as a universal logic gate combined with three supplementary circuits: A multiplexer (MUX), a Wheatstone bridge, and a comparator. With these circuits, the universal logic gates demonstrated 16 binary Boolean logic operations in one logic stage. A possible further approach is parallel computations through a complimentary of MUX and comparator, capable of driving multiple logic gates. A reconfigurable property can also be realized when different logic operations are produced from different level of voltages applying to the same configuration of the logic gate.
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