Riva, M. Adrien (2024) Simulation of transport properties of extraordinary magnetoresistance (EMR) sensors for magnetoencephalography PRE - Research Project, ENSTA.
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Abstract
This report explores the electronic transport properties in magnetoresistive graphene devices, a two-dimensional material with exceptional characteristics. The study focuses on the relationship between the applied magnetic field and the measured electrical résistance. Through advanced numerical simulations, electron trajectories were calculated for various magnetic field intensities, allowing for the analysis of resistance variations. The results reveal a resonance phenomenon when the cyclotron diameter, corresponding to the circular trajectory of electrons, matches the width of the terminals. This phenomenon could be leveraged to design ultra-sensitive sensors capable of measuring low-intensity magnetic fields, such as those generated by brain activity. The report concludes that a deep understanding of transport mechanisms is crucial for accurately simulating the properties of these devices and for developing innovative applications in sensor technology and advanced electronics.
Item Type: | Thesis (PRE - Research Project) |
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Uncontrolled Keywords: | Magnetoresistance ; electronic transport ; graphene ; cyclotron resonance ; finite elements ; simulation. |
Subjects: | Mathematics and Applications Physics, Optics |
ID Code: | 10189 |
Deposited By: | Adrien RIVA |
Deposited On: | 03 sept. 2024 09:22 |
Dernière modification: | 03 sept. 2024 09:22 |
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