Clamp cell with $in$ $situ$ pressure monitoring for low-temperature neutron scattering measurements

Abstract

A clamp pressure cell for neutron scattering experiments at low temperatures and in external magnetic fields under pressure up to 2~GPa has been fabricated and tested. The cell provides optical access to the sample space that allows instantaneous pressure determination during sample loading, cooling and measuring using ruby and/or samarium doped strontium tetraborate fluorescence monitoring. A new calibration curve of the pressure-induced shift of the ${}^7{D}_0{-}^5{F}_0$ (0-0) line in the fluorescent spectrum of SrB${}_4$O${}_7$:Sm${}^{2+}$ for moderate pressures, $P⩽2$ GPa, is given.

11 pages, 6 figures

References in corpus (2)

• The Cold Neutron Chopper Spectrometer at the Spallation Neutron Source - A Review of the first 8 Years of Operation
• Quantum Phase transition under pressure in a heavily hydrogen-doped iron-based superconductor LaFeAsO

Cited by in corpus (7)

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• Optical setup for a piston-cylinder type pressure cell: a double-volume approach
• Gradual pressure-induced enhancement of magnon excitations in CeCoSi
• The use of LEDs as a light source for fluorescence pressure measurements
• Zr-based bulk metallic glass clamp cell for high-pressure inelastic neutron scattering