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SSS-MFMR

SuperSharpSilicon™ Magnetic Force Microscopy - Reflex Coating

The NANOSENSORS™ SSS-MFMR AFM probe is optimized for high resolution magnetic force imaging. The SuperSharpSilicon™ tip basis combined with a very thin hard magnetic coating result in an extremely small radius of the coated tip and a high aspect ratio at the last few hundred nanometers of the tip - the essential demands for high lateral resolution down to 20 nm in ambient conditions.

Due to the low magnetic moment of the tip the sensitivity to magnetic forces is significantly decreased if compared to standard MFM probes but the disturbance of soft magnetic samples is also reduced.

The hard magnetic coating on the tip is characterized by a coercivity of app. 125 Oe and a remanence magnetization of app. 80 emu/cm3 (these values were determined on a flat surface).

The SPM probe offers unique features:

As both coatings are almost stress-free the bending of the cantilever due to stress is less than 3.5% of the cantilever length. For enhanced signal strength the magnetization of the tip by means of a strong permanent magnet prior to the measurement is recommended.

Cantilever data:

Property Nominal Value Specified Range
Thickness /µm 3 2.0 - 4.0
Mean Width /µm 28 20 - 35
Length /µm 225 215 - 235
Force Constant /(N/m) 2.8 0.5 - 9.5
Resonance Frequency /kHz 75 45 - 115

Order codes and shipping units:

Order Code Number of AFM probes per pack Data sheet Coating
SSS-MFMR-10 10 of all probes hard magnetic and reflex
SSS-MFMR-20 20 of all probes hard magnetic and reflex
SSS-MFMR-50 50 without hard magnetic and reflex
SSS-MFMR-W >370 of up to 32 probes hard magnetic and reflex


Product screencast NANOSENSORS™ Magnetic Force Microscopy MFM Silicon Probes

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