High resolution long lifetime magnetic probes MFM10 series.
Survival test – 30 days in high* humidity conditions!
High resolution long lifetime magnetic probes MFM01 series
The choice of the proper probe is very important during magnetic measurements. The magnetic probe should provide high resolution images with good magnetic signal. Besides it should “survive” under high-humidity conditions.
NT-MDT offers new development - high resolution long lifetime magnetic probes MFM01 and MFM10. Special protective layers help to avoid oxidation and increase the cantilever lifetime substantially. Sharp silicon tip with coating less than 40 nm allows obtaining magnetic resolution till 20-30 nm!
SEM photo of the MFM01 probe tip.
Curvature radius is about 35nm. |
Magnetic structure of a hard disk drive (500 GByte) with bit size down to 20-30 nm, which was obtained by MFM01 probe in ambient conditions
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Survival test – 30 days in high* humidity conditions!
*close to 100% without water condensation
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Magnetic structure of a hard disk drive, which was obtained by MFM01 probe in ambient conditions
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Magnetic structure of a hard disk drive obtained by MFM01 probe which was kept in the high humidity conditions within 30 days
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Probe specification
Standard chip size: 1.6x3.4x0.3 mm compatible with the most of commercial AFM devices.
Probes have special alignment grooves compartible with SOLVER NANO and NANOEDUCATOR II microscopes (NT-MDT Co.)
Probes have special alignment grooves compartible with SOLVER NANO and NANOEDUCATOR II microscopes (NT-MDT Co.)
The base silicon is highly doped to avoid electrostatic charges.
High reflective Al back side coating.
Tip side is coated with CoCr magnetic coating with additional layers protecting from oxidation
Total coating thickness – 30-40 nm*.
Typical curvature radius of the tip is about 40 nm.
Guaranteed cantilever lifetime is 1 year if it’s storaged at the normal conditions (humidity 30-40%).
Cantilever series
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Cantilever length, L±10 µm
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Cantilever width, W±5 µm
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Cantilever thickness,
T±0.5 µm
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Resonant frequency, kHz
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Force constant, N/m
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min
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typical
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max
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min
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typical
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max
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||||
MFM10
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125
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32
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2.0
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87
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150
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230
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1.45
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5.1
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15.1
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*At customer request we can make probes with different coating thickness to achieve different magnetic moments which will be the best for measuring of your samples.