In situ uniaxial pressure cell for x-ray and neutron scattering experiments

Area of Science:

• Materials Science
• Condensed Matter Physics
• Experimental Physics

Background:

• Advanced scattering techniques require precise control over sample environments.
• Investigating material properties under extreme conditions (low temperature, high magnetic fields) is crucial for fundamental research.

Purpose of the Study:

• To introduce a novel in situ uniaxial pressure device.
• To optimize the device for small-angle X-ray and neutron scattering experiments.
• To enable studies under simultaneous low-temperature and high-magnetic-field conditions.

Main Methods:

• A stepper motor applies force, monitored by an integrated transducer.
• The device supports forces up to 200 N in compression and tension.
• Feedback control enables continuous pressure application during temperature changes.

Main Results:

• The device is adaptable to various instruments and cryostats via exchangeable adapters.
• Compatibility with multiple, easily interchangeable sample holders allows for rapid sample manipulation.
• The system facilitates in situ mechanical stress application in demanding experimental setups.

Conclusions:

• The developed uniaxial pressure device offers a versatile solution for advanced scattering experiments.
• It enables the exploration of material behavior under combined mechanical stress, low temperatures, and high magnetic fields.
• The design promotes flexibility and efficiency in sample handling and experimental setup.