Development of cubic anvil type high pressure apparatus for neutron diffraction

Area of Science:

• Condensed Matter Physics
• Materials Science
• Neutron Scattering

Background:

• High-pressure neutron diffraction (HPND) is crucial for studying emergent phenomena in strongly correlated materials.
• Understanding pressure-induced phase transitions and quantum criticality requires advanced experimental capabilities.
• Existing HPND apparatuses have limitations in pressure and temperature ranges.

Purpose of the Study:

• To present the characteristics of a newly developed clamp-type cubic anvil high pressure cell.
• To demonstrate the performance of this cell for low-temperature HPND measurements.
• To showcase its application in probing magnetic neutron scattering under pressure.

Main Methods:

• Development of a clamp-type cubic anvil high pressure cell capable of >7 GPa at 3 K.
• Utilizing neutron diffraction for high-pressure studies.
• Performing magnetic neutron scattering measurements on MnP single crystals under pressure.

Main Results:

• The clamp-type cubic anvil cell achieves high pressures (>7 GPa) at cryogenic temperatures (3 K).
• The cell's performance was successfully demonstrated through neutron scattering experiments on MnP.
• The study provides insights into pressure-dependent magnetic behavior.

Conclusions:

• The developed clamp-type cubic anvil cell is a valuable tool for low-temperature, high-pressure neutron diffraction studies.
• This apparatus facilitates the investigation of pressure-induced phenomena in materials.
• The findings contribute to the understanding of strongly correlated systems under extreme conditions.