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Abstract
Influence of strong magnetic fields B ˃ 3 T under cryogenic temperatures (1.5 ÷ 4.2) K on the signals of Hall sensors based on single-crystal whiskers (InSb, InAs) and nano-sized heterostructures (InSb/i-GaAs, InAs/i-GaAs) have been investigated. There are distinct Shubnikov – de Haas oscillations for whisker-based sensors, whereas heterostructures-based sensors demonstrate the linear field dependence of the output signal. This difference explained by the higher concentration of structure defects in the heterostructures. The derived results confirm the operability of Hall sensors based on indicated heterostructures for the magnetic fields diagnostics in the temperature and field conditions of modern particle accelerators and fusion reactors.
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Schedule a callMore From: IOP Conference Series: Materials Science and Engineering
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