Simple adaptation of the Bridgman high pressure technique for use with liquid media

Colombier, E.; Braithwaite, D.

doi:10.1063/1.2778629

Cited by 41 publications

(46 citation statements)

References 16 publications

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“…18,19 Higher pressures, up to 7.4 GPa, were achieved using a Bridgman cell that has been modified to work with liquid pressure media. 24 Both these cells were designed to fit inside a Quantum Design Physical Properties Measurement System (PPMS) which served as a variable temperature station for the temperature range between 1.8 and 300 K.…”

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confidence: 99%

Combined effects of pressure and Ru substitution on BaFe2As2

et al. 2011

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The ab-plane resistivity of Ba(Fe1−xRux)2As2 (x = 0.00, 0.09, 0.16, 0.21, and 0.28) was studied under nearly hydrostatic pressures, up to 7.4 GPa, in order to explore the T − P phase diagram and to compare the combined effects of iso-electronic Ru substitution and pressure. The parent compound BaFe2As2 exhibits a structural/magnetic phase transition near 134 K. At ambient pressure, progressively increasing Ru concentration suppresses this phase transition to lower temperatures at the approximate rate of ∼ 5 K/% Ru and is correlated with the emergence of superconductivity. By applying pressure to this system, a similar behavior is seen for each concentration: the structural/magnetic phase transition is further suppressed and superconductivity induced and ultimately, for larger x Ru and P , suppressed. A detailed comparison of the T − P phase diagrams for all Ru concentrations shows that 3 GPa of pressure is roughly equivalent to 10% Ru substitution. Furthermore, due to the sensitivity of Ba(Fe1−xRux)2As2 to pressure conditions, the melting of the liquid media, 4 : 6 light mineral oil : n-pentane and 1 : 1 iso-pentane : n-pentane, used in this study could be readily seen in the resistivity measurements. This feature was used to determine the freezing curves for these media and to infer their room temperature, hydrostatic limits: 3.5 and 6.5 GPa, respectively.

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Combined effects of pressure and Ru substitution on BaFe2As2

et al. 2011

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“…Resistivity measurements under pressure were performed using a Bridgman cell modified to use with a liquid pressure medium 12,13 , either a Fluorinert mixture (1:1 FC70:FC77) or 1:1 n-pentane:isopentane. When not specified, the medium used was 1:1 FC70:FC77.…”

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Phase diagram of CeVSb3under pressure and its dependence on pressure conditions

et al. 2011

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We present temperature dependent resistivity and ac-calorimetry measurements of CeVSb3 under pressure up to 8 GPa in a Bridgman anvil cell modified to use a liquid medium and in a diamond anvil cell using argon as a pressure medium. An initial increase of the ferromagnetic transition temperature TC with pressures up to 4.5 GPa is observed, followed by decrease of TC on further increase of pressure and finally its disappearance, in agreement with the Doniach model. We infer a ferromagnetic quantum phase transition around 7 GPa under hydrostatic pressure conditions from the extrapolation to 0 K of TC and the maximum of the A coefficient from low temperature fits of the resistivity ρ(T ) = ρ0 + AT n . No superconductivity under pressure was observed down to 0.35 K for this compound. In addition, differences in the TC(P) behavior when a slight uniaxial component is present are noticed and are correlated to the choice of pressure medium.

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“…Pressure was applied using a modified Bridgman cell. 23 In such a cell, it is possible to use liquids as the pressure-transmitting medium. Pressures as high as ∼7 GPa can be obtained when using Daphne oil 7373 24 or Fluorinert.…”

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“…Pressures as high as ∼7 GPa can be obtained when using Daphne oil 7373 24 or Fluorinert. 23 In this study, we used a 1:1 mixture of n-pentane:isopentane, which is a more hydrostatic medium. 25,26 The solidification of this medium occurs at room temperature at ∼6-7 GPa.…”

Section: Methodsmentioning

confidence: 99%

Electrical resistivity study of CeZn11: Magnetic field and pressure phase diagram up to 5 GPa

et al. 2013

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Thorough resistivity measurements on single crystals of CeZn11 under pressure p and magnetic field H are presented. At ambient pressure, CeZn11 orders antiferromagnetically at TN=2 K. The pressure dependence of the resistivity reveals an increase of the Kondo effect. We determine the pressure evolution of the magnetic exchange interaction between conduction and localized 4f electrons. It qualitatively reproduces the pressure evolution of the magnetic ordering temperature TO1 (with TO1=TN at ambient pressure). In addition to TO1, a new anomaly TO2appears under pressure. Both anomalies are found to increase with applied pressure up to 4.9 GPa, indicating that CeZn11 is far from a pressure induced quantum critical point. Complex T-H phase diagrams are obtained under pressure which reveal the instability of the ground state in this compound. Keywords Physics and Astronomy Disciplines Condensed Matter Physics CommentsThis article is from Physical Review B 88 (2013) Thorough resistivity measurements on single crystals of CeZn 11 under pressure p and magnetic field H are presented. At ambient pressure, CeZn 11 orders antiferromagnetically at T N = 2 K. The pressure dependence of the resistivity reveals an increase of the Kondo effect. We determine the pressure evolution of the magnetic exchange interaction between conduction and localized 4f electrons. It qualitatively reproduces the pressure evolution of the magnetic ordering temperature T O 1 (with T O 1 = T N at ambient pressure). In addition to T O 1 , a new anomaly T O 2 appears under pressure. Both anomalies are found to increase with applied pressure up to 4.9 GPa, indicating that CeZn 11 is far from a pressure induced quantum critical point. Complex T -H phase diagrams are obtained under pressure which reveal the instability of the ground state in this compound.

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Simple adaptation of the Bridgman high pressure technique for use with liquid media

Cited by 41 publications

References 16 publications

Combined effects of pressure and Ru substitution on BaFe2As2

Combined effects of pressure and Ru substitution on BaFe2As2

Phase diagram of CeVSb3under pressure and its dependence on pressure conditions

Electrical resistivity study of CeZn11: Magnetic field and pressure phase diagram up to 5 GPa

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