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Piston cylinder cell for high pressure ultrasonic pulse echo measurements

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Original languageEnglish
Article number085103
Number of pages1
JournalReview of Scientific Instruments
Volume87
Issue number8
DOIs
Publication statusPublished - 4 Aug 2016

Abstract

Ultrasonic techniques such as pulse echo, vibrating reed, or resonant ultrasound spectroscopy are powerful probes not only for studying elasticity but also for investigating electronic and magnetic properties. Here, we report on the design of a high pressure ultrasonic pulse echo apparatus, based on a piston cylinder cell, with a simplified electronic setup that operates with a single coaxial cable and requires sample lengths of mm only. The design allows simultaneous measurements of ultrasonic velocities and attenuation coefficients up to a pressure of 1.5 GPa. We illustrate the performance of the cell by probing the phase diagram of a single crystal of the ferromagnetic superconductor UGe2.

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