TNMFM Series MFM probes with Magnetic Coating
High Resolution Silicon AFM Cantilevers TNMFM series are designed for magnetic modes such as magnetic force microscopy (MFM). The cantilever has an aluminium reflective coating on the top side to maximise the laser signal. The tip-side is coated with a CoCr magnetic coating.
Key Features
- Material: Single Crystal Silicon, N-type, 0.01-0.025 Ohm-cm, Antimony doped
- Chip size: 3.4×1.6×0.3mm
- Reflective side coating: Al
- Tip coating: CoCr
- Tip curvature radius: ~40nm
Please download the probes datasheet for more information on probe characteristics
Due to optimised coating thickness, these probes suited for different kinds of magnetic samples and are recommended for initial measurements of new samples. Upon reviewing the results you can take a decision if the MFM coating used is the appropriate one or it is better to try another type of magnetic coating. Due to special defensive layers which prevent the ferromagnetic tip coating from oxidising, all MFM probes have a long shelf life, and the small tip curvature radius enables you to obtain good high resolution images.
TNMFM_LM probes have thinner magnetic coating than ordinary magnetic tips. So, such low coercive magnetic samples as iron garnet films, ordered array of interaсting Co particles, ordered array of vertically magnetized 35nm CoPt dots can be measured. Thanks to their own low magnetic fields low moment TNMFM_LM probes allow to decrease the probe influence on the researched sample while scanning.
If you are not certain which coating will work best for your application, a mixed box is also available (see bottom of the table)
| Part No. | Tip coating | Resonant Frequency min/typical/max (kHz) | Force constant min/typical/max (Nm) | Probes in pack | Cantilever length +/-10um | Cantilever width +/-7.5um | Cantilever thickness +/-1um | |
|---|---|---|---|---|---|---|---|---|
| TNMFM01/15 | CoCr (standard) | 47/70/90 | 1/3/5 | 15 | 225 | 28 | 3.0 | |
| TNMFM01/15 | ||||||||
| TNMFM01/50 | CoCr (standard) | 47/70/90 | 1/3/5 | 50 | 225 | 28 | 3.0 | |
| TNMFM01/50 | ||||||||
| TNMFM_LM/15 | CoCr (Thin, low moment) | 47/70/90 | 1/3/5 | 15 | 225 | 28 | 3.0 | |
| TNMFM_LM/15 | ||||||||
| TNMFMSET/15 | 10xStandard, 5xlow moment | 47/70/90 | 1/3/5 | 15 | 225 | 28 | 3.0 | |
| TNMFMSET/15 |
