Soft Magnetic Coating - Magnetic force microscopy - Reflex coating
||75 kHz||60 - 90 |
||2.8 N/m||1.2 - 5.5 |
||225 µm||220 - 230 |
||28 µm||22.5 - 32.5 |
||3.0 µm||2.5 - 3.5 |
A trapezoidal cross section of the cantilever and therefore 30% wider (e.g. NCH) cantilever detector side result in easier and faster laser adjustment. Additionally, because there is simply more space to place and reflect the laser beam, a higher SUM signal is reached.
Coating DescriptionSoft Magnetic Coating / Aluminum Reflex Coating
The soft magnetic coating consists of a thin soft magnetic layer deposited on the tip side of the cantilever. The coercivity is app. 0.75 Oe and the remanence magnetization is app. 225 emu/cm3 (these values were determined on a flat surface). We recommend magnetizing the tip by means of a strong magnet (e.g. a NdFeB magnet, a few millimeters in size) prior to the measurement.
The aluminum reflex coating deposited on the detector side of the cantilever enhances the reflectance of the laser beam and 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 degrees.
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