Three-wall piston-cylinder type pressure cell for muon-spin rotation/relaxation experiments

Khasanov, R.; Urquhart, Ross; Elender, Matthias; Kamenev, K. V.

doi:10.1080/08957959.2021.2013835

Cited by 3 publications

(4 citation statements)

References 27 publications

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“…(iii) The volume occupied by the optical probe is far smaller compared to the sample volume. Indeed, the fluorescence measurements could be easily performed on a small ruby crystal (approximately 0.01 mm 3 or less), while the "sample" volume for a typical piston-cylinder clamp cell used in neutron and muon experiments is of the order of 200-500 mm 3 [6][7][8]11,[16][17][18].…”

Section: The Concept Of the Double-volume Clamp Cell And Measuring Pr...mentioning

confidence: 99%

“…2(a). The pressure-cell body (with the inner and the outer diameters ∅6 and ∅24 mm, respectively) and the top part of the pressure seal [the mushroom, the tungsten carbide (WC) piston, the WC pressing pad, and the fixation bolt] are the same as currently used in clamped cells for muon-spin rotation and relaxation experiments [6,7,11], and are not discussed here.…”

Section: The Double-volume Pressure-cell Assemblymentioning

confidence: 99%

“…2). The pressure seal can lead to a large amount of friction [5], so the real pressure inside the cell becomes smaller compared to the applied one (p < p ap ; p ap = F ap /S, S is the piston's top area) during the cell pressurization process, and it is higher than p ap (p > p ap ) during the cell depressurization procedure [11].…”

Section: A Pressures Inside the "Sample" And The "Optical" Volumesmentioning

confidence: 99%

“…In μSR studies the "in situ" pressure determination is possible only in three experiments, where the sample itself (Al, In, and Sr 2 RuO 4 , Refs. [10][11][12]) is used as the pressure calibrant.…”

Section: Introductionmentioning

confidence: 99%

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Optical Setup for a Piston-Cylinder Pressure Cell: A Two-Volume Approach

Naumov

Gupta²,

Bartkowiak³

et al. 2022

Phys. Rev. Applied

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Measurement of the absolute value of the applied pressure in high-pressure muon and neutron experiments is a complicated task. It often requires the presence of a calibration material inside the sample volume, and could also cause additional time to obtain the response of the calibrant. Here we describe the use of optical calibrants for precise determination of the pressure value inside the pistoncylinder clamp cells. Utilizing the concept of separate volumes for the sample and the optical media, a setup for conducting in situ pressure measurements is successfully tested. Pressures in both the "sample" and the "optical" volumes are proved to be the same within experimental accuracy. The use of SrB 4 O 7 : (0.01 Sm 2+ , 0.03 Eu 2+ ) as a pressure calibrant allows for a high accuracy of pressure determination by considering up to eight fluorescence lines.

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Section: The Concept Of the Double-volume Clamp Cell And Measuring Pr...mentioning

confidence: 99%

Section: The Double-volume Pressure-cell Assemblymentioning

confidence: 99%

Section: A Pressures Inside the "Sample" And The "Optical" Volumesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Optical Setup for a Piston-Cylinder Pressure Cell: A Two-Volume Approach

Naumov

Gupta²,

Bartkowiak³

et al. 2022

Phys. Rev. Applied

Self Cite

View full text Add to dashboard Cite

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Unconventional charge order and superconductivity in kagome-lattice systems as seen by muon-spin rotation

Guguchia,

Khasanov,

Luetkens

2023

npj Quantum Mater.

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Kagome lattices are intriguing and rich platforms for studying the intertwining of topology, electron correlation, and magnetism. These materials have been subject to tremendous experimental and theoretical studies not only due to their exciting physical properties but also as systems that may solve critical technological problems. We will review recent experimental progress on superconductivity and magnetic fingerprints of charge order in several kagome-lattice systems from the local-magnetic probe point of view by utilizing muon-spin rotation under extreme conditions, i.e., hydrostatic pressure, ultra low temperature and high magnetic field. The systems include: (1) The series of compounds AV3Sb5 (A = K, Rb, Cs) with V kagome lattice which form the first kagome-based family that exhibits a cascade of symmetry-broken electronic orders, including charge order and superconductivity. In these systems, we find a time-reversal symmetry-breaking charge ordered state and tunable unconventional time-reversal symmetry-breaking superconductivity. (2) The system LaRu3Si2 with distorted kagome layers of Ru, in which our experiments and calculations taken together point to nodeless moderate coupling superconductivity. It was also found that the electron-phonon coupling alone can only explain a small fraction of Tc from calculations, which suggests other factors enhancing Tc such as the correlation effect from the kagome flat band, the van Hove point on the kagome lattice, and the high density of states from the narrow kagome bands. (3) CeRu2 with a pristine Ru kagome lattice, which we classify as an exceedingly rare nodeless (with anisotropic s-wave gap symmetry) magnetic kagome superconductor.

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Perspective on muon-spin rotation/relaxation under hydrostatic pressure

Khasanov

2022

Journal of Applied Physics

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Pressure, together with temperature, electric, and magnetic fields, alters the system and allows for the investigation of the fundamental properties of matter. Under applied pressure, the interatomic distances shrink, which modifies the interactions between atoms and may lead to the appearance of new (sometimes exotic) physical properties, such as pressure-induced phase transitions; quantum critical points; new structural, magnetic, and/or superconducting states; and changes of the temperature evolution and symmetry of the order parameters. Muon-spin rotation/relaxation ([Formula: see text]SR) has proven to be a powerful technique in elucidating the magnetic and superconducting responses of various materials under extreme conditions. At present, [Formula: see text]SR experiments may be performed in high magnetic field up to [Formula: see text] T, temperatures down to [Formula: see text]–15 mK, and hydrostatic pressure up to [Formula: see text] GPa. In this Perspective, the requirements for [Formula: see text]SR experiments under pressure, the existing high-pressure muon facility at the Paul Scherrer Institute (Switzerland), and selected experimental results obtained by [Formula: see text]SR under pressure are discussed.

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Three-wall piston-cylinder type pressure cell for muon-spin rotation/relaxation experiments

Cited by 3 publications

References 27 publications

Optical Setup for a Piston-Cylinder Pressure Cell: A Two-Volume Approach

Optical Setup for a Piston-Cylinder Pressure Cell: A Two-Volume Approach

Unconventional charge order and superconductivity in kagome-lattice systems as seen by muon-spin rotation

Perspective on muon-spin rotation/relaxation under hydrostatic pressure

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