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The 4-axis closed-loop cryogenic sample holder provided by Fermion Instruments can achieve precise control of sample position and posture. It is mainly composed of four parts: cryogenic sample rod, temperature control system, XYZ-R1 translation stage, and motor control system. The entire sample holder and translation stage are made of non-magnetic materials and can be used under ultra-high vacuum. The sample stage can move over a large range in the X, Y, and Z directions, and can achieve rotational movement around the Z axis (R1). The motor control software can be linked with ScientaOmicron's analyzer to realize the automapping function.
| ● Low operating cost:Adopt air (water) cooled GM refrigerator to provide cooling capacity | ● Multiple degrees of freedom:X, Y, Z, R1 can all realize motor control | ● Easy to operate:Plug and play, can run stably for a long time | ● Multiple functional modules are optional |
| ● Ultra-low temperature:The minimum stable temperature of the sample stage can reach 4K | ● Precise temperature control:PID temperature control accuracy can reach 10mK | ● Fast temperature change:From room temperature to 4K, less than 4 hours |
| ● Sample parking table: | ● 4K four-axis low temperature stage | ● High temperature sample stage (optional electron beam heating) | ● Four-electrode transport measurement module |
| ● YAG stage | ● Sample suspension module | ● Low temperature cleavage module |
| R1 axial rotation | 360° (-180°, + 180°) |
| X/Y stroke | 25mm (±12.5mm) |
| Z stroke | Maximum 650mm |
| 4-axis | 5A-axis | 5F-axis | 5.5-axis | 6-axis | |
| XY stroke | ±12.5mm | ±12.5mm | ±12.5mm | ±12.5mm | ±12.5mm |
| Z itinerary | Maximum 700mm | Maximum 700mm | Maximum 700mm | Maximum 700mm | Maximum 700mm |
| XYZ drive | Manual/motor | Manual/Motor | Manual/Motor | Manual/Motor | Manual/Motor |
| XYZ Accuracy | <0.01mm | <0.01mm | <0.01mm | <0.01mm | <0.01mm |
| R1 range | 360° (-180°, +180°) | 360° (-180°, +180°) | 360° (-180°, +180°) | 360° (-180°, +180°) | 360° (-180°, +180°) |
| R1 control mode | Manual/Motor | Manual/Motor | Manual/Motor | Manual/motor | Manual/motor |
| R1 control accuracy | <0.1° | <0.1° | <0.1° | <0.1° | <0.1° |
| R1 reduction ratio | 360:0.2 | 360:0.2 | 360:0.2 | 360:0.2 | 360:0.2 |
| R2 (Flip) range | —— | —— | 60° (-15°, +45°) | 60° (-15°, +45°) | 60° (-15°, +45°) |
| R2 driver | —— | —— | Motor | Manual/motor | Manual/motor |
| R2 precision | —— | —— | <0.1° | <1° | <0.1° |
| R2 reduction ratio | —— | —— | 360:9 | 360:6 | 360:3 |
| R3 (Azi) range | —— | 240° (-120°, +120°) | —— | 240° (-120°, +120°) | 240° (-120°, +120°) |
| R3 driver | —— | Manual/motor | —— | Manual | Manual/motor |
| R3 precision | —— | <0.1° | —— | Manual<1° | <0.1° |
| R3 reduction ratio | —— | 360:5 | —— | 360:4.5 | 360:4 |
| Temperature range | <4-325K | ＜5-325K | ＜5-325K | ＜6-325K | <6-325K |
| Minimum temperature | <4K | ＜5K | ＜5K | ＜6K | <6K |
| Control precision | <0.01K | <0.01K | <0.01K | <0.01K | <0.01K |
| Cooling time | <3 Hour (RT-6K)< /span> | ＜4 Hour (RT-6K) | ＜4 Hour (RT-6K) | ＜5 Hour (RT-6K) | ＜6 Hour (RT-6K) |
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