We present a scanning vector Hall probe microscope for imaging the entire magnetic field vector in close proximity to magnetic and superconducting samples. The microscope combines a large scanned area and a high space resolution of the magnetic field vector measured. A special feature of the equipment is a vacuum-tight sample space connected with a moving system via a flexible metal bellows. The microscope is based on a vector Hall sensor that consists of three separate Hall probes of an active area patterned on three sides of a GaAs pyramid. The top of the pyramid serves as a tunneling contact and helps to control the sensor–sample separation. The sensor and the sample are placed in a helium cryostat with a temperature control in the range 10–300 K. The sensor scans an area up to in the whole temperature interval with a spatial resolution
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December 2003
Research Article|
December 01 2003
Scanning vector Hall probe microscope
J. Fedor;
J. Fedor
Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia
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V. Cambel;
V. Cambel
Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia
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D. Gregušová;
D. Gregušová
Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia
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P. Hanzelka;
P. Hanzelka
Institute of Scientific Instruments, Academy of Sciences of the Czech Republic, Královopolská 147, 612 64 Brno, Czech Republic
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J. Dérer;
J. Dérer
Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia
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J. Volko
J. Volko
Institute of Electrical Engineering, Slovak Academy of Sciences, Dúbravská cesta 9, 841 04 Bratislava, Slovakia
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Rev. Sci. Instrum. 74, 5105–5110 (2003)
Article history
Received:
May 27 2003
Accepted:
September 01 2003
Citation
J. Fedor, V. Cambel, D. Gregušová, P. Hanzelka, J. Dérer, J. Volko; Scanning vector Hall probe microscope. Rev. Sci. Instrum. 1 December 2003; 74 (12): 5105–5110. https://doi.org/10.1063/1.1623004
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