NANOSENSORS™

PPP-MFMR

Point Probe® Plus Magnetic Force Microscopy - Reflex Coating

The NANOSENSORSPPP-MFMR AFM probe is our standard probe for magnetic force microscopy providing a reasonable sensitivity, resolution and coercitivity. It has proven stable imaging of a variety of recording media and other samples. The force constant of this probe type is specially tailored for magnetic force microscopy yielding high force sensitivity while simultaneously enabling tapping mode and lift mode operation.
The hardmagnetic coating on the tip is optimized for high magnetic contrast and high lateral resolution of considerably better than 50 nm. The coating is characterized by a coercivity of app. 300 Oe and a remanence magnetization of app. 300 emu/cm3 (these values were determined on a flat surface).
The SPM probe offers unique features:
- hard magnetic coating on the tip side (coercivity of app. 300 Oe, remanence magnetization
   of app. 300 emu/cm3)
- effective magnetic moment in the order of 10-13 emu
- metallic electrical conductivity
- guaranteed tip radius of curvature < 50 nm
- magnetic resolution better than 50 nm
- Al coating on detector side of cantilever enhancing the reflectivity of the laser beam
   by a factor of about 2.5
- alignment grooves on backside of silicon holder chip
- precise alignment of the cantilever position (within +/- 2 µm) in conjunction with the usage
  of the alignment chip
- compatible with PointProbe® Plus XY-Alignment Series
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.
PPP-MFMR Front View   PPP-MFMR Closeup Front View
Cantilever data:
Technical Data Nominal Value Specified Range
Thickness /µm 3 2.0 – 4.0
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 Quantity Data Sheet Coating
PPP-MFMR-10 10 of all probes hard magnetic and reflex
PPP-MFMR-20 20 of all probes hard magnetic and reflex
PPP-MFMR-50 50 without hard magnetic and reflex
PPP-MFMR-W > 370 of up to 32 probes hard magnetic and reflex
For further information please contact your local distributor or NANOSENSORS™ directly.
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