Quasi-Free-Standing Bilayer Graphene Hall-Effect Sensor

Kachniarz, Maciej; Petruk, Oleg; Strupiński, W.; Ciuk, Tymoteusz; Bieńkowski, A.; Szewczyk, Roman; Salach, Jacek

doi:10.1109/tmag.2018.2874070

Cited by 5 publications

(8 citation statements)

References 10 publications

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“… 2 − 4 Compared to intensively reported GHEs fabricated on monolayer graphene, the exploration of a bilayer graphene-based Hall element is very rare. 5 As one kind of important graphene, bilayer graphene has some advantages on electronic property to the monolayer one, including better stability and lower noise, and then shows unique performances on the bilayer GHE. In practical application, Hall devices mainly work in the low frequency band and are vulnerable to flicker noise (1/f noise), which determines the magnetic field resolution of Hall elements.…”

Section: Introductionmentioning

confidence: 99%

“…A few related works have produced bilayer graphene Hall devices, but do not match the known properties of bilayer graphene materials. 5 Therefore, it is necessary to fabricate and systematically explore the GHEs based on CVD-grown bilayer graphene.…”

Section: Introductionmentioning

confidence: 99%

“…Because of high carrier mobility, ultra-thin thickness, stable structure, scalable fabrication, and other properties, graphene has been considered as an excellent channel material for constructing Hall elements, which is a widely used magnetic sensor. Graphene Hall elements (GHEs) exhibit remarkable properties including high sensitivity, magnetic field resolution, temperature stability, high linearity, as well as good compatibility with the Si CMOS process and have been demonstrated as one of the most promising fields for graphene to be used in practice. − Compared to intensively reported GHEs fabricated on monolayer graphene, the exploration of a bilayer graphene-based Hall element is very rare . As one kind of important graphene, bilayer graphene has some advantages on electronic property to the monolayer one, including better stability and lower noise, and then shows unique performances on the bilayer GHE.…”

Section: Introductionmentioning

confidence: 99%

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High Performance Hall Sensors Built on Chemical Vapor Deposition-Grown Bilayer Graphene

Dai

Chen

et al. 2022

ACS Omega

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Graphene has been considered as an excellent channel material for constructing magnetic sensors or Hall elements with high sensitivity and linearity. Compared to intensively reported graphene Hall elements (GHEs) fabricated on monolayer graphene, the exploration on bilayer graphene-based Hall elements is very rare. Here, we first investigate the performance and potential of Hall elements built on chemical vapor deposition-grown bilayer graphene. Without applying any gate voltage, the bilayer GHEs exhibit a typical voltage sensitivity of 119 mV/VT and current sensitivity of 397 V/AT, which are higher than those in the monolayer GHEs, indicating the better performance in practical applications. Moreover, the bilayer GHEs present obviously lower noise and then the minimum detection magnetic field compared to the monolayer ones. Hall elements built on bilayer graphene show certain unique advantages and can be used as an important supplement to mainstreaming monolayer GHEs.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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High Performance Hall Sensors Built on Chemical Vapor Deposition-Grown Bilayer Graphene

Dai

Chen

et al. 2022

ACS Omega

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“…The study is a theoretical survey that extensively describes the processes involved in employing the charge carrier method. Kachniarz et al (2019) had developed a new Hall effect sensing device. The device has a sensing material that is graphene.…”

Section: Introductionmentioning

confidence: 99%

Hall effect sensors using polarized electron cloud spin orientation control

Arumona

Garhwal

Youplao

et al. 2020

Microscopy Res & Technique

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A silicon microring circuit embedded gold film with unique characteristics is proposed for Hall effect, current, and temperature sensing applications. The microring circuit is operated by the input polarized laser sources, in which the space–time distortion control can be employed. A gold film is embedded at the microring center. The whispering gallery mode (WGM) is generated and applied for plasmonic waves, from which the trapped electron cloud oscillation is formed. Through the input port, the input polarized light of 1.55 μm wavelength fed into the space–time control circuit. Spin‐up |↑〉(|0〉) and spin‐down |↓〉(|1〉) of polarized electrons result when the gold film is illuminated by the WGM. The electric current passing through the gold film generates a magnetic field (B), which is orthogonal to the electric field. Hall voltage is obtained at the output of the circuit, from which the microring space–time circuit can operate for Hall's effect, current, and temperature sensing device. The simulation results obtained have shown that when the input power of 100–500 mW is applied, the optimum Hall effect, current, and temperature sensitivities are 0.12 μVT−1, 0.9 μVA−1, and 6.0 × 10−2 μVK−1, respectively. The Hall effects, current, and temperature sensors have an optimum response time of 1.9 fs.

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“…The application of integrated-circuit sensors placed in the air gap of a magnetic core for the measurement of AC and DC voltages, currents, and magnetic flux density in electrical machines is constantly being developed [ 1 , 2 , 16 , 17 , 18 , 19 , 20 , 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 ]. For AC and DC currents with a magnetic flux density, contact and contactless measurement, Hall-effect sensors, magnetoresistive current sensors, and coils (e.g., the Rogowski coils are only suitable for AC currents) [ 16 , 17 , 22 , 23 , 24 ] are commonly used. In cases of voltages up to 1 kV, with output separation, both magnetoresistive current sensors and Hall-effect sensors can be used after placing them in the air gap of a ferromagnetic core, and voltage measurement is carried out by using the current to measure magnetic flux in the measuring winding that is wound around the core [ 25 , 26 , 27 ].…”

Section: Introductionmentioning

confidence: 99%

Practical Adaptation of a Low-Cost Voltage Transducer with an Open Feedback Loop for Precise Measurement of Distorted Voltages

Sułowicz

Ludwinek

Tulicki

et al. 2019

Sensors

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This paper presents the project proposal of a low-cost transducer with a Hall-effect sensor placed in a ferromagnetic core’s air gap, which enables the measurement of the distorted voltage instantaneous values without the feedback loop used for measurements in electrical machines. The presented transducer allows for electrical separation between the measured voltage and the voltage at the output. Moreover, the influences of frequency, additional resistance, and the reactance of the winding circuit on the voltage phase shift caused by winding inductance with ferrite core and amplitude are discussed. The result of simulating leakage inductance of measuring winding with ferrite core with an air gap is calculated using finite element analysis. Experimental investigations of the voltage phase shift angle and output voltage amplitude drop for the voltage transducers with an open feedback loop are carried out, taking into account the linear core magnetization characteristic.

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Quasi-Free-Standing Bilayer Graphene Hall-Effect Sensor

Cited by 5 publications

References 10 publications

High Performance Hall Sensors Built on Chemical Vapor Deposition-Grown Bilayer Graphene

High Performance Hall Sensors Built on Chemical Vapor Deposition-Grown Bilayer Graphene

Hall effect sensors using polarized electron cloud spin orientation control

Practical Adaptation of a Low-Cost Voltage Transducer with an Open Feedback Loop for Precise Measurement of Distorted Voltages

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