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Experimental methods to suppress random telegraph signal noise in acoustic charge transport nanostructure devices
Author(s) -
Song Li,
Zhang Chuanyu,
Chen Shuwei,
Gao Jie
Publication year - 2012
Publication title -
physica status solidi (a)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 104
eISSN - 1862-6319
pISSN - 1862-6300
DOI - 10.1002/pssa.201228236
Subject(s) - noise (video) , signal (programming language) , acoustics , physics , phase noise , power (physics) , noise reduction , materials science , electronic engineering , computer science , optics , engineering , quantum mechanics , artificial intelligence , image (mathematics) , programming language
We present an experimental investigation of how the different operating parameters affect the random telegraph signal (RTS) noise in surface acoustic wave (SAW) devices. The altered parameters include: SAW power and frequency, phase difference between two counterpropagating SAW beams, and asymmetrical voltage applied to the two side gates of the quantum point contact. The results indicate that proper tuning of the relevant parameters can reduce the RTS noise, which would be beneficial for metrological applications. Building on the experimental results, physical models have been proposed to explain the reason why the effective reduction of the noise can be achieved.