High Coercivity Magnetic Probes
|Magnetic measurement in high external magnetic fields demands corresponding coercitivity value of MFM tip and stability of its magnetization distribution during imaging. Obviously, applying magnetic field higher than coercitivity leads to unavoidable magnetization reversal of magnetic tip and corresponding distortion of magnetic image.|
Typical magnetic tips with CoCr coating usually demonstrate coercivity about 200Oe in vertical Z direction (see figure) and 800Oe in horizontal X or Y direction.
Novel magnetic tips based on Co high coercivity alloy (MFM_HC) posses essentially higher values – 500-800Oe in vertical direction and more than 2kOe in horizontal direction. Therefore new MFM_HC tips open new possibilities in magnetic measurements in high external magnetic fields.
Standard chip size: 1.6×3.4×0.3 mm compatible with the most of commercial AFM devices.