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TTT-02-Kerr Microscope

Integrated Kerr Microscope

Desktop projection maskless lithography machine, light source wavelength 405nm, lithography feature size 1.5um, support sample size from 3mm×3mm to 50mm×50mm.


Spintronics has been widely interested for its applications in many areas. From magnetic sensors to nonvolatile magnetic storage and investigating materials properties, spintronics is not only playing an important role of the hot spot in the scientific research, but also attracts significant attention in the industy. The ability to directly detect and record the state of the magnetic domain in material research is important for magnetism related studies. This is because observation of the domain wall motion provides an intuitive picture of magnetic switching which elucidates the underlying physics.

Compared to traditional static magnetic hysteresis loop analyzer, the integreated Kerr microscope test platform has the ability to image the real time magnetic information with resolution down to sub-microns. The DC probes and high frequency probes in the system allows versatile driven methods for magnetic switching. Up to present, spintronics research has progressed from magnetic field driven switching to the DC current, pulse current, microwave pulse and optical pulse driven magnetization switching.

Key specifications (TTT-02-Kerr Microscope)


Application examples

The typical results of TTT-Kerr System


Perpendicular magnetic anisotropy films (Ferromagnetic/ferrimagnetic thin film)


In-plane magnetic anisotropy films


Current induced magnetic switching


Kerr imaging of two-dimensional ferromagnetic films CrTe2 at low temperature


Gradient spin current accumulation


Field-Free switching due to the high z-component spin polarization Current



Key features

· High quality magnetic domain imaging
· Multiple stimulation/Multifunction testing platform
· Higher stability, simpler operation


System upgrade (premium)

· Vector imaging
· Low temperature + vacuum + intracavitary electrical probe

System (Basic)

· Low temperature module
· Integrated laser excitation
· In plane arbitrary angle vector electromagne

Recommended Operation Condition

· Temperature: 20–30℃
· Humidity: RH < 60%
· Power: 220 V, 50 Hz

· Space requirement(Contain Rack)5: 3200 mm ×3000 mm

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