可通過極向和縱向?qū)Υ女犨M(jìn)行觀測。并且可以任意切換觀察方向。該磁疇觀測克爾顯微鏡還可以觀測動(dòng)態(tài)磁疇的變化。MOKE磁疇觀測顯微鏡裝配基礎(chǔ)觀測軟件和Flame movie 軟件可以實(shí)現(xiàn)連續(xù)的可選擇的磁場變化下磁疇圖像的連續(xù)觀測。
u 主要特點(diǎn) l 高靈敏度(0.001°) l 高分辨率 (1μm) l 高外加磁場 l 可進(jìn)行變溫測量(4.2K-500K) l 高穩(wěn)定性
u 主要應(yīng)用 磁性納米技術(shù)、磁性薄膜等領(lǐng)域以及磁性材料、磁性薄膜磁疇的動(dòng)態(tài)靜態(tài)觀測。
u 主要參數(shù)
1. Magnetic Domai
Observation
Light Source
Ultra high pressure mercury lamp
Observation Direction
Polar Direction
In-Plane (Longitudinal) Direction
Objective Lens
′20 Objective Lens
′50 Objective Lens
Spatial Resolution
2.5 mm (Typ.)
With ′20 Objective Lens
Note 1
1.0 mm (Typ.)
With ′50 Objective Lens
Total Magnification
′1000 (Typ.)
With ′20 Objective Lens
′2500 (Typ.)
With ′50 Objective Lens
Observation Area
250′200 mm
With ′20 Objective Lens
100′70 mm
With ′50 Objective Lens
2. Magneto Optic Kerr Effect Measurement
Light Source
408 nm Diode Laser
Measurement Direction
Polar Direction
In-Plane (Longitudinal) Direction
Spatial Resolution
2 mm (Typ.)
@ Polar Measurement
5 mm (Typ.)
@ Longitudinal Measurement
Signal Detection Method
PBS Differential Method
Kerr Rotation Detection Sensitivity
0.001 degree (equivalent)
Note 2
Kerr Rotation Detection Range
± 1 degree (Typ.)
3. Electromagnet
Polar Electromagnet
Generating Magnetic Field
± 10KOe (Max)
Acceptable Sample Size
<>′10′1t mm
In-Plane Electromagnet
Generating Magnetic Field
± 10KOe (Max)
Acceptable Sample Size
<>′8′1t mm
Polar Electromagnet for Cryostat
Generating Magnetic Field
± 2KOe (Max)
Acceptable Sample Size
Depend on sample space of Cryostat
Bi-Polar Power Supply
Output Current
± 15 A
Output Voltage
± 45 V
4. Cryostat
Refrigerants
Liquid Helium
Note 3
Temperature Range
4.2-500 K
Temperature Stability
± 0.1K
Sample Space
Max. 20 mm Diameter (Max. 4mm Height)
Liquid Helium Consumption
< 0.45="" l/h="">
Work Distance
4.5 to 5.5 mm (8mm for Rectangular Tail)
Note 1: Spatial resolution will be changed in the case of measuring sample through cryostat. Note 2: Detection Sensitivity will be changed in the case of measuring sample through cryostat. Note 3: Liquid Helium is not included to the system.