A milliKelvin scanning Hall probe microscope for high resolution magnetic imaging


Khotkevych, V. V. and Bending, S. J., 2009. A milliKelvin scanning Hall probe microscope for high resolution magnetic imaging. Journal of Physics: Conference Series, 150, 012021.

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    The design and performance of a novel scanning Hall probe microscope for milliKelvin magnetic imaging with submicron lateral resolution is presented. The microscope head is housed in the vacuum chamber of a commercial He-3-refrigerator and operates between room temperature and 300 mK in magnetic fields up to 10 T. Mapping of the local magnetic induction at the sample surface is performed by a micro-fabricated 2DEG Hall probe equipped with an integrated STM tip. The latter provides a reliable mechanism of surface tracking by sensing and controlling the tunnel currents. We discuss the results of tests of the system and illustrate its potential with images of suitable reference samples captured in different modes of operation.


    Item Type Articles
    CreatorsKhotkevych, V. V.and Bending, S. J.
    EditorsKes, P.and Jochemsen, R.
    Related URLs
    URLURL Type
    DepartmentsFaculty of Science > Physics
    ID Code23829
    Additional Information25th International Conference on Low Temperature Physics (LT25), 6-13 August 2008, Amsterdam, Netherlands.


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