Nanoscale MOSFET as a Potential Room-Temperature Quantum Current Source

Cheung, Kin P.; Wang, Chen; Campbell, Jason P.

doi:10.3390/mi11040364

Cited by 7 publications

(2 citation statements)

References 38 publications

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“…Finally, the box thickness was 25 nm, and the equivalent front gate oxide thickness was (EOT) t ox = 1.55 nm (TiN/HfSiON stack) [25]. Fully depleted silicon-oninsulator MOSFETs [26,27] exhibit low threshold voltage and threshold voltage controllability (by the second gate bias) at the nanoscale. Because of its compatibility to the standard planar CMOS technology, it is capable of further downscaling; therefore, the characteristics of noise currents are crucial to study.…”

Section: The Case Of the Nano-mosfet Electronic Devicementioning

confidence: 99%

Spontaneous Symmetry Breaking in Systems Obeying the Dynamics of On–Off Intermittency and Presenting Bimodal Amplitude Distributions

et al. 2023

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In this work, first, it is confirmed that a recently introduced symbolic time-series-analysis method based on the prime-numbers-based algorithm (PNA), referred to as the “PNA-based symbolic time-series analysis method” (PNA-STSM), can accurately determine the exponent of the distribution of waiting times in the symbolic dynamics of two symbols produced by the 3D Ising model in its critical state. After this numerical verification of the reliability of PNA-STSM, three examples of how PNA-STSM can be applied to the category of systems that obey the dynamics of the on–off intermittency are presented. Usually, such time series, with on–off intermittency, present bimodal amplitude distributions (i.e., with two lobes). As has recently been found, the phenomenon of on–off intermittency is associated with the spontaneous symmetry breaking (SSB) of the second-order phase transition. Thus, the revelation that a system is close to SSB supports a deeper understanding of its dynamics in terms of criticality, which is quite useful in applications such as the analysis of pre-earthquake fracture-induced electromagnetic emission (also known as fracture-induced electromagnetic radiation) (FEME/FEMR) signals. Beyond the case of on–off intermittency, PNA-STSM can provide credible results for the dynamics of any two-symbol symbolic dynamics, even in cases in which there is an imbalance in the probability of the appearance of the two respective symbols since the two symbols are not considered separately but, instead, simultaneously, considering the information from both branches of the symbolic dynamics.

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Section: The Case Of the Nano-mosfet Electronic Devicementioning

confidence: 99%

Spontaneous Symmetry Breaking in Systems Obeying the Dynamics of On–Off Intermittency and Presenting Bimodal Amplitude Distributions

et al. 2023

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“…Similarly, by UV-induced polymerization, biocompatible polymer monomers were crosslinked to fabricate polymer-based magnetic-driven microrobot [28][29][30]. Two-photon polymerization was widely used to fabricate micrometer scale microswimmers with complex structures [31][32][33][34][35][36][37][38][39][40]. By using the phase transition behaviour of the hydrogels or polymers, the UV polymerized microswimmers presents changeable morphology [41][42][43][44][45][46].…”

Section: Introductionmentioning

confidence: 99%

Magnetic microswimmers with infrared‐induced shape transformation

Yang

Zhu

Zhang

et al. 2021

Micro & Nano Letters

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Soft untethered microswimmers have recently been demonstrated to be capable of transporting and delivering cargos by external control while maintaining biocompatibility and safety. However, such microswimmers still suffer from complex and inconvenient fabrication processes and control methods, which impedes their clinical translation. In this paper, an easy-to-fabricate, magnetic-driven and IR-induced shape transformative microswimmer is presented. This microswimmer can be fabricated in a fast, low-cost and highthroughput manner. Besides, the soft body of the microswimmer can provide an inherent friendly contact with the biological environment, and its components are biocompatible and biodegradable. Being magnetically-drivable allows the microswimmer to provide untethered movement and targeted therapy in the human body, and its IR-induced shape transformability enables penetrable regulation of the movement and function. Furthermore, the shape of the untethered microswimmer can be transformed due to its combination of low melting behaviours and multi-response materials, suggesting that other materials with similar properties can also be adopted in a similar method. The proposed method validates the feasibility to integrate polymers for fabricating magnetic-driven, infraredresponsive and shape transformative microswimmers.How to cite this article: Yang R., et al.: Magnetic microswimmers with infrared-induced shape transformation.

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Detection of individual spin species via frequency-modulated charge pumping

Ashton

Anders

Ryan

2022

Applied Physics Letters

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We utilize a frequency-modulated charge pumping methodology to measure quickly and conveniently single “charge per cycle” in highly scaled Si/SiO2 metal–oxide–semiconductor field effect transistors. This is indicative of detection and manipulation of a single interface trap spin species located at the boundary between the SiO2 gate dielectric and Si substrate (almost certainly a Pb type center). This demonstration in sub-micrometer devices in which Dennard scaling of the gate oxide has yielded extremely large gate oxide leakage currents eliminates interference between the charge pumping current and the leakage phenomenon. The result is the ability to measure single trap charge pumping reliably and easily, which would otherwise be completely inaccessible due to oxide leakage. This work provides a unique and readily available avenue for single spin species detection and manipulation, which can be applied as a quantized standard of electrical current as well as to serve as a potentially useful platform for developing quantum engineering technologies. Finally, we discuss potential underlying physical mechanisms that are involved in producing a seemingly contradictory measure of both odd and even integer values for charge per cycle.

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Nanoscale MOSFET as a Potential Room-Temperature Quantum Current Source

Cited by 7 publications

References 38 publications

Spontaneous Symmetry Breaking in Systems Obeying the Dynamics of On–Off Intermittency and Presenting Bimodal Amplitude Distributions

Spontaneous Symmetry Breaking in Systems Obeying the Dynamics of On–Off Intermittency and Presenting Bimodal Amplitude Distributions

Magnetic microswimmers with infrared‐induced shape transformation

Detection of individual spin species via frequency-modulated charge pumping

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