| CONDENSED MATTER: STRUCTURAL, MECHANICAL, AND THERMAL PROPERTIES |
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Temperature effects of GaAs/Al0.45Ga0.55As superlattices on chaotic oscillation |
| Xiao-Peng Luo(罗晓朋)1, Yan-Fei Liu(刘延飞)1,†, Dong-Dong Yang(杨东东)1, Cheng Chen(陈诚)1, Xiu-Jian Li(李修建)2, and Jie-Pan Ying(应杰攀)3 |
1 Department of Basic Courses, Rocket Force University of Engineering, Xi'an 710025, China;
2 College of Liberal Arts and Sciences, National University of Defense Technology, Changsha 410073, China;
3 Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou 215123, China |
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Abstract For widespectrum chaotic oscillation, superlattice cryptography is an autonomous controllable brand-new technology. Originating from sequential resonance tunneling of electrons, the chaotic oscillation is susceptible to temperature change, which determines the performance of superlattices. In this paper, the temperature effects of chaotic oscillations are investigated by analyzing the randomness of a sequence at different temperatures and explained with superlattice microstates. The results show that the bias voltage at different temperatures makes spontaneous chaotic oscillations vary. With the temperature of superlattices changing, the sequence dives in entropy value and randomness at specific bias. This work fills the gap in the study of temperature stability and promotes superlattice cryptography for practice.
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Received: 09 April 2021
Revised: 29 April 2021
Accepted manuscript online: 25 May 2021
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PACS:
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68.65.Cd
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(Superlattices)
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73.40.Gk
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(Tunneling)
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05.10.-a
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(Computational methods in statistical physics and nonlinear dynamics)
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05.45.-a
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(Nonlinear dynamics and chaos)
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| Fund: Project supported by the Key Program of the National Natural Science Foundation of China (Grant No. 61834004). |
Corresponding Authors:
Yan-Fei Liu
E-mail: bbmcu@126.com
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Cite this article:
Xiao-Peng Luo(罗晓朋), Yan-Fei Liu(刘延飞), Dong-Dong Yang(杨东东), Cheng Chen(陈诚), Xiu-Jian Li(李修建), and Jie-Pan Ying(应杰攀) Temperature effects of GaAs/Al0.45Ga0.55As superlattices on chaotic oscillation 2021 Chin. Phys. B 30 106805
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