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Strong static magnetic field influences on IC

  1. Jun 3, 2015 #1
    Does any one have any papers or materials on how strong static magnetic field (7 to 12 Tesla) influence BJT and MOSFETS?
    I didn't find many people doing research on this. All I find is some experiment results. It seems transistor parameters change a lot with different azimuth angle due to Hall effect.
    I really would like to know more about how it influences amplifiers and mixers.
    Thank you.
     
  2. jcsd
  3. Jun 4, 2015 #2

    davenn

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    Science Advisor
    Gold Member

    Hi there
    welcome to PF :smile:

    There's lots of papers online eg
    "Magnetothermal effect in semiconductors in strong magnetic fields"
    http://www.sciencedirect.com/science/article/pii/0022369776901773

    The effect of a strong magnetic field on the impurity photoionization in semiconductors
    http://onlinelibrary.wiley.com/doi/10.1002/pssb.2221970118/citedby

    The effect of stress and strong magnetic fields on the shallow impurities in semiconductors and the piezoresistance and magnetoresistance for hopping conduction
    http://www.researchgate.net/publication/249049827_The_effect_of_stress_and_strong_magnetic_fields_on_the_shallow_impurities_in_semiconductors_and_the_piezoresistance_and_magnetoresistance_for_hopping_conduction [Broken]

    unfortunately that and most others are behind pay per view/membership sites
    so plenty of info out there, its just a matter of getting access to it :)

    Dave
     
    Last edited by a moderator: May 7, 2017
  4. Jun 5, 2015 #3

    berkeman

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    Welcome to the PF.

    In addition to the effects on the semiconductors, the magnetic components in those devices you mention (inductors, transformers, etc.) will be affected too. Those field levels will likely saturate all magnetic components on the device, which will probably keep the devices from working.
     
  5. Jun 5, 2015 #4

    mfb

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    2016 Award

    Staff: Mentor

    Putting things with ferromagnetic cores in such a strong field sounds like a stupid idea anyway.

    Unfortunately, influences of magnetic fields depend on the magnetic field direction and transistor design.
     
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