High pressure cells for contact measurement

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The double-layered CuBe/NiCrAl piston-cylinder cell (Fig. 3) for experiments within the PPMS apparatus (Quantum Design) has been acquired. The limit for the pressure is 3GPa, feedthrough with 12-16 electrical leads allows measurement of electrical resistivity, magnetoresistance and Hall effect (default setting), AC susceptibility (custom built detection coils) and heat capacity (AC calorimetry) under high pressures in the temperature region 2-400K and magnetic fields up to 14T. Recently, Merryll-Bassett type DAC (fig.4) has been built in our lab to extend the range of the transport measurements in PPMS14 to pressures up to ~ 10GPa. Additionally, both PPMS – based pressure cells can be used in the dilution refrigerator in the Joint laboratory for magnetic studies (https://mgml.eu/), extending the accessible temperature region down to ~ 50mK and magnetic fields up to 15T.
 

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Tlakové komory pro kontaktní měření 
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