The NANOSENSORS™ PPP-LC-MFMR AFM probe is coated with a soft magnetic thin film enabling the measurement of magnetic domains in soft magnetic samples. Due to the low coercivity of the tip coating the magnetisation of the tip will easily get reoriented by hard magnetic samples.
The soft magnetic coating on the tip has a coercivity of app. 0.75 Oe and a remanence magnetization of app. 225 emu/cm3 (these values were determined on a flat surface).
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.
|Property||Nominal Value||Specified Range|
|Thickness /µm||3||2.0 - 4.0|
|Mean 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 Code||Number of AFM probes per pack||Data sheet||Coating|
|PPP-LC-MFMR-10||10||of all probes||hard magnetic and reflex|
|PPP-LC-MFMR-20||20||of all probes||hard magnetic and reflex|
|PPP-LC-MFMR-50||50||without||hard magnetic and reflex|