Magnetic force microscopy - Reflex coating
NanoWorld Pointprobe® MFM probes are designed for magnetic force microscopy. The force constant and the special hard magnetic tip-side coating of the MFM type are optimised for this type of application. This type of probe yields a very high force sensitivity, while simultaneously enabling tapping and lift mode operation.
All SPM and AFM probes of the Pointprobe® series are made from monolithic silicon which is highly doped to dissipate static charge. They are chemically inert and offer a high mechanical Q-factor for high sensitivity. The tip is shaped like a polygon based pyramid with a height of 10 - 15 µm.
Additionally this probe offers unique features:
Soft magnetic samples may be influenced by the tip magnetization !
- typical tip radius of curvature < 50 nm
- high magnetic contrast and lateral resolution < 100 nm
- electrically conductive coating
The reflex coating on the detector side of the cantilever enhances its reflectance and prevents light from interfering within the cantilever.
||3.0 µm||2.5 - 3.5 |
||28 µm||22.5 - 32.5 |
||225 µm||220 - 230 |
||2.8 N/m||1.2 - 5.5 |
||75 kHz||60 - 90 |
| Order Code
Hard Magnetic Coating
Hard magnetic coating is an approximately 40 nm thick cobalt alloy coating on the tip-side of the cantilever leading to a permanent magnetization of the tip with the direction usually along the tip axis. We recommend to magnetize the tip by means of a strong magnet (e.g. a NdFeB magnet, a few millimeters in size). As the coating is almost stress free the bending of the cantilever due to stress is less than 2°.
Reflex coating is an approximately 30 nm thick aluminum coating on the detector side of the cantilever which enhances the reflectance of the laser beam by a factor of 2.5. Furthermore it prevents light from interfering within the cantilever. As the coating is almost stress free the bending of the cantilever due to stress is less than 2°.
For more information contact: firstname.lastname@example.org
Pointprobe® is a registered trademark of NanoWorld AG
All data are subject to change without notice.
Rue Jaquet-Droz 1
Case Postale 216