Moke Hysteresis Loop Measuring Instrument

Moke Hysteresis Loop Measuring Instrument

Product Instruction

Hich-precision characterization of the maanetism of ferromacnetism, artificial antiferromaanetism, two-dimensional materials and  microelectronic devices using the maneto-optical Kerr effect, The in-plane and vertical magnetic fields can be applied atthe same time, and the in-plane macnetization component and the vertical magnetization component can be scanned simultaneously, that is, the  hvsteresis oop of anv combination of the in-plane maonetic field/vertica maanetic field-in-planecomponent/perpendicular component  can be obtained at the same time. The detection accuracy of Kerr rotation anale is ashigh as 0.3 mdeg (RMS), and it can detect the  maanetization of single atomic laver. A wire-tie sample holder is provided forthe characterization of electrica -magneto-optical  propertiesThe product is independently developed by the company, with strong stability and good scalability, and provides  customizedservices: compared with similar equipment in the same industry, it has a larger maanetic field and higher precision, and  canachieve in-plane and vertical hysteresis loop measurements without chancing the optical path, lt is laser automatic alionmenthighly intelligent software support.

Equipment Performance 

Magnetic field: in-plane 1.0 T, vertical 1.0 T; 

Minimum Kerr angle detection：0.3medg(RMS)； 

Temperature range: 4K~500 K (expansion option);  

Maximum Sample Size：15mm×15mm

Equipment Features

Quadrupolevector magnet: In-planemagnetic field  strength: 

>1.0 T@8 mm Air Gap >0.5 T@16 mm Air Gap 

Highly focused laserbeam spot : 

As small as 250 um, users canobtain  The figure on the right shows that at a magnetic field  scanning frequency of o.5HzKerr rotation test results  obtained by averaging different number of turns.The  results show that the noise of the sample is 58% without  averaging in a single cycle, and the minimum Kerr rotation angle detection degree after multiple cycles is O.5mdeg. fine local magneticinformation

Vertical MagneticField Strength :

>1.0 T 7 mm Air Gap >0.5 T@16 mm Air Gap

Integrated gaussmeter sample holder : 

Integrated design, multi-range selection, thehighest  magnetic field resolution is less than 0.02 mT, and the  collected magnetic field is closeto the real magnetic field  of the sample

Five-Axis Sample Stage :

Laser real-time automatic alignment function.

Applications

Research on Polar Kerr Test of Perpendicular Magnetic Anisotropic Thin Films :

Kerr test at room temperature for perpendicular magnetic anisotropy thin W(5nm)/CoFeB(1nm)/Mgo(2nm)/W(5nm)