Perspective on the muon-spin rotation/relaxation under hydrostatic pressure

Abstract

Pressure, together with temperature, electric and magnetic fields, alters the system and allows to investigate the fundamental properties of the matter. Under applied pressure the interatomic distances shrink, which modify interactions between atoms and may lead to appearance of a new (sometime exotic) physical properties as, e.g., pressure induced phase transition(s); quantum critical points(s), new structural, magnetic and/or superconducting states; changes of the temperature evolution and the symmetry of the order parameter(s) etc. The muon-spin rotation/relaxation ($\mu$SR) appears to be a commonly used powerful technique allowing to study the magnetic and superconducting responses of various materials under extreme conditions. At present, $\mu$SR experiments might be performed under the high magnetic field up to $\simeq 9$ T, temperatures down to $\simeq 10-15$ mK and hydrostatic pressure up to $\simeq 2.8$ GPa. In the following Perspective paper the requirements to the $\mu$SR under pressure experiments, the existing high-pressure muon facility at the Paul Scherrer Institute (Switzerland), and selected experimental results obtained by using the $\mu$SR under pressure technique are discussed.

arXiv comment14 pages, 14 figures

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Cited by in corpus (15)

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• Quantifying the nonadiabaticity strength constant in recently discovered highly-compressed superconductors
• Pressure weakens coupling strength in In and Sn elemental superconductors
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• Influence of pressure on properties of multi-gap type-I superconductor BeAu
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• Simulation studies of a high-repetition-rate electron-driven surface muon beamline at SHINE
• Pressure tuning of competing interactions on a honeycomb lattice
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• Anisotropic superconductivity in the quasi-one-dimensional superconductor V${}_2$Ga${}_5$
• Hydrostatic and chemical pressure driven crossover from commensurate to the incommensurate state of the Weyl semimetal Mn${}_{3+x}$Sn${}_{1-x}$
• Origin of the suppression of magnetic order in MnSi under hydrostatic pressure
• Emergence of a Fluctuating Ground State in Y-kapellasite under Pressure
• Thermodynamic evidence for a pressure-driven crossover from strong- to weak-coupling superconductivity in Pb
• The use of LEDs as a light source for fluorescence pressure measurements