AI Article Synopsis
- A unique cold finger specifically designed for angle resolved photoemission spectroscopy was created, incorporating in situ helium reliquification and a removable pulse tube cryocooler.
- The design features minimal vibration, operates from 1.7 K to 400 K, and maintains Ultra High Vacuum conditions while allowing for easy replacement of non-UHV heaters.
- In continuous mode, the cold finger can keep a sample at 2.6 K, and in single shot mode, it can achieve temperatures as low as 1.8 K for several hours.
Article Abstract
We have designed, constructed, and tested a unique cold finger suitable for angle resolved photoemission spectroscopy. This design is based on in situ helium reliquification and utilizes pulse tube cryocooler. The pulse tube can be removed for baking without breaking Ultra High Vacuum (UHV). This design also allows the use of non-UHV heater that can be replaced without the need to vent the system. The cold finger has minimal vibration, operates over a temperature range of 1.7 K-400 K, and has no measurable residual magnetization. In continuous mode, it can maintain a sample temperature of 2.6 K, while in single shot mode (by pumping on liquid helium), it can reach temperatures down to 1.8 K for a period of several hours.
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| http://dx.doi.org/10.1063/1.5113722 | DOI Listing |
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