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Start Over Author "Ozgur Karci" Journal applied surface science
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1. Single layer graphene Hall sensors for scanning Hall probe microscopy (SHPM) in 3–300K temperature range

Author

Ozgur Karci, Munir Dede, Seda Aksoy, Selda Sonusen, and Ahmet Oral

Subjects
Scanning Hall probe microscope, Materials science, Magnetic domain, Condensed matter physics, Graphene, General Physics and Astronomy, Surfaces and Interfaces, General Chemistry, Condensed Matter Physics, Surfaces, Coatings and Films, law.invention, Magnetic field, Neodymium magnet, law, Hall effect, Magnet, Hall effect sensor
Abstract

Graphene micro-Hall probes were developed for a scanning Hall probe microscope system and used for the direct magnetic imaging domains of demagnetized NdFeB permanent magnet for the first time. The Hall coefficient and minimum magnetic field resolution of graphene Hall probes at 1 kHz were found to be 0.18 Ω/G and 0.20 G / Hz for a drive current of 3 μA at room temperature in vacuum. The magnetic domains in NdFeB demagnetized magnet were observed at 300 K, 126 K and 3 K successfully.

Published
2014
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