Example 7: UHV System with Variable Temperature STM/AFM

This system is a customised multi-chamber UHV system for investigating chemical & physical properties of solid state surfaces.

UHV System with Variable Temperature STM/AFM

This system is a customised multi-chamber UHV system for investigating chemical & physical properties of solid state surfaces.

Custom UHV System Solid State Surfaces



Description
Customised multi-chamber UHV system dedicated for investigation of chemical and physical properties of solid state surfaces over wide temperature and pressure ranges.


Custom UHV System Solid State Surfaces



Specification
Multi-chamber system designed for investigations and modifications of solid surfaces by different methods under very well controlled conditions. Central radial distribution chamber with attached analytical chambers and auxiliary chambers fulfill these demands and ensure high quality measurement with sample transfer between chambers under UHV pressures (<1E-10mbar). The base pressure in the analytical chambers is < 5E-11 mbar.

  • Multifunctional analytical chamber integrates different measurement methods: standard ESCA, ESCA with lateral resolution < 9μ, AES, ISS and UPS.
  • A high precision, 5 axis manipulator ensures repeatable positioning of the sample and is equipped with cryostat for LN2 and a heater for cooling and heating of the sample over a the temperature range -180°C to 2000°C.
  • The chamber is fabricated from mu-metal, equipped with hemispherical analyser and analytical equipment such as ion source, electron source, flood gun, x-ray source and prepared for many others. The equipment can be readily modified according to future demands.
  • A variable temperature STM/AFM chamber is mounted on a concrete plate located on a separate frame with a vibration isolation system. The distribution chamber transfer system allows the sample holders to be placed directly in to the STM/AFM receiving station in the same way as manipulators located in other chambers. In order to minimise vibration during AFM/STM measurement all mechanical pumps can be turned off and the vacuum in the system is maintained by ion pumps and titanium sublimation pumps only.
  • The chamber is equipped with an electron beam evaporator which can operate during the measurements. The chamber has its own magazine for tips and samples, with tip heating station and suitable wobble stick for transportation between the magazine and the STM receiving station.
  • Three level preparation chamber, equipped with LEED, TDS, ion source, electron beam evaporator, mechanical surface cleaner, and many ports which can be used for future preparation or evaporation devices.
  • Load lock chamber prepared for powder samples and with internal bakeout system.
  • Cleaver chamber for cleaving the samples mounted in suitable sample holder.
  • High pressure chamber for heating up to 650°C and cooling the sample in a controlled gas atmosphere at pressures to 2MPa.
  • Sample park chamber for 6 sample holders.


UHV Surface Analysis
Our 16 page catalogue provides additional examples and is available for download here.




 
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