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MFM01

MFM01/50 (50 separated chips): 2.150 € (Add to cart)
MFM01/15 (15 separated chips): 690 € (Add to cart)

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 SI 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 35 nm.
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
 


Survival test – 30 days in high* humidity conditions!
*close to 100% without water condensation
 
 
Magnetic structure of a hard disk drive, which was obtained by MFM01 probe in ambient conditions
Magnetic structure of a hard disk drive obtained by MFM01 probe which was kept in the high humidity conditions within 30 days
 
Probe specification

Standard chip size: 1.6x3.4x0.3 mm compatible with the most of commercial AFM devices.
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
Cantilever length, L±10 µm
Cantilever width, W±5 µm
Cantilever thickness,
T±0.5 µm
Resonant frequency, kHz
Force constant, N/m
min
typical
max
min
typical
max
MFM01
225
32
2.5
47
70
90
1
3
5

 
*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.
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