NanoMOKE3
02 Mar 2015
Yes
-  

 

No
No
 
No
No
 

The Durham Magneto Optics NanoMOKE3 is a high-performance magnetooptical magnetometer and Kerr microscope, capable of both laser magnetometry and video Kerr microscopy. The instrument will detect longitudinal, transverse and polar magnetooptical Kerr phen

No

​​

 

Common research applications of such equipment include:

  • Thin film magnetism
  • GMR/TMR
  • Spintronics or magneto-electronics
  • Patterned magnetic media
  • Magnetic nanotechnologies such as MRAM
  • Recording heads and field sensors
  • Domain imaging

Key features of the NanoMOKE3 instrument include:

  • Ultra-high sensitivity and stability to <0.02% reflectivity and 0.5 mdeg polarisation changes
  • Laser spot focussed to as small as 2 μm
  • Rapid and precise computer controlled laser raster mirror system
  • Real-time viewing of magnetic domains (4 fps video capture) and photographic capture quality for bright, sharp images taken in polar Kerr, longitudinal Kerr and reflectivity contrast modes
  • High-sensitivity CCD sensor for Kerr and reflectivity imaging at 30 fps and 512 x 512 pixels
  • Fully automated alignment of the laser and optics
  • LX Pro 3 software for complete instrument control: positioning of the laser, application of complex field patterns, recording hysteresis loops and post-processing of results to remove noise and artifacts and gather key parameters such as remanence and coercivity. It also allows real-time display of images during rastering, capture of photographic quality pictures and basic image processing such as contrast and brightness adjustment and profile measurement.
  • The standard setup uses a quadropole magnet, allowing fields to be applied in any direction (X and Y can be controlled seperately) within the plane of the sample. Field waveforms can be generated under computer control, up to 0.12 T
  • An optional dipolar electromagnet is also available, for application of fields in the sample plane up to 0.46 T
  • Cryogenic sample stage allowing measurements in the temperature range of 4.2 to 500 K with liquid helium (can be used with the dipolar magnet only).

Manufacturer's product brochure

Contact: