Description
Low Moment High Resolution Magnetic tips MFM_LM possess 15nm* CoCr coating, which is two times thinner compare to standard MFM tips. Decreasing the magnetic moment of MFM tip is important in case of imaging low coercitive magnetic samples, such as iron garnet films with coercitivity of about 20 Oe.
Using standart MFM tips with 40nm CoCr coating leads to perturbation of the magnetic domain pattern and tip induced local magnetization reversal of the sample (Fig. 1).
Low moment MFM tips with reduced magnetic stray fields significantly reduce magnetization reversal during imaging and improve quality of the MFM results (Fig. 2).
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| Fig. 1. MFM image of iron garnet film
with standard MFM01 tip |
Fig. 2. MFM image of iron garnet film
with low moment MFM_LM tip |
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Fig. 3. MFM image of low coercitive CoPt film with low moment MFM_LM tip |
