High pressure research using muons at the Paul Scherrer Institute

  title={High pressure research using muons at the Paul Scherrer Institute},
  author={Rustem Khasanov and Zurab Guguchia and Alexander Maisuradze and Daniel Andreica and Matthias Elender and Andrea Raselli and Zurab Shermadini and Tatsuo Goko and F. Knecht and Elvezio Morenzoni and A. Amato},
  journal={High Pressure Research},
  pages={140 - 166}
ABSTRACT Pressure, together with temperature and magnetic field, is an important thermodynamical parameter in physics. Investigating the response of a compound or of a material to pressure allows to elucidate ground states, investigate their interplay and interactions and determine microscopic parameters. Pressure tuning is used to establish phase diagrams, study phase transitions and identify critical points. Muon spin rotation/relaxation (μSR) is now a standard technique making increasing… Expand
Magnetic phase diagram of K2Cr8O16 clarified by high-pressure muon spin spectroscopy
The current study indicates the possible presence of a quantum critical point at pC2 ~ 33 kbar where the magnetic order in K2Cr8O16 is expected to be fully suppressed even at T = 0 K. Expand
Magnetic phase boundary of BaVS3 clarified with high-pressure μ+SR
The magnetic nature of the quasi-one-dimensional BaVS3 has been studied as a function of temperature down to 0.25 K and pressure up to 1.97 GPa on a powder sample using the positive muon spinExpand
Magnetic states of MnP: muon-spin rotation studies.
The analysis confirms that in MnP the low-temperature and low-pressure helimagnetic phase is characterised by an increased value of the average magnetic moment compared to the high-tem temperature ferromagnetic phase. Expand
Pressure-induced antiferromagnetic dome in the heavy-fermion Yb2Pd2In1−xSnx system
In the heavy-fermion system $Yb_2Pd_2In_{1-x}Sn_x$, the interplay of crystal-field splitting, Kondo effect, and Ruderman-Kittel-Kasuya-Yosida interactions leads to complex chemical-, pressure-, andExpand
Piezoelectric-driven uniaxial pressure cell for muon spin relaxation and neutron scattering experiments.
It is demonstrated here that by mounting plate-like samples with epoxy, a uniaxial stress exceeding 1 GPa can be achieved in an active volume of at least 5 mm3, and it is important to monitor both the force and displacement applied to the sample. Expand
Pressure effects on magnetism and superconductivity
This thesis summarizes experimental work using high pressure as a tuning parameter in the study of selected correlated electron systems at low temperatures. This thesis contains 8 chapters and 2Expand
Pressure effects on the electronic properties of the undoped superconductor ThFeAsN
The recently synthesized ThFeAsN iron-pnictide superconductor exhibits a $T_c$ of 30 K, the highest of the 1111-type series in absence of chemical doping. To understand how pressure affects itsExpand
Magnetism in Solid Oxygen Studied by High-Pressure Neutron Diffraction
This article reviews progress achieved over the last ~ 15 years in our understanding of magnetism in solid oxygen under high pressure with a particular emphasis on the contribution of neutronExpand
Chemical and hydrostatic-pressure effects on the Kitaev honeycomb material Na2IrO3
The low-temperature magnetic properties of \tcr{polycrystalline} Na$_2$IrO$_3$, a candidate material for the realization of a quantum spin-liquid state, were investigated by means of muon-spinExpand
Multiple quantum phase transitions of different nature in the topological kagome magnet Co3Sn2−xInxS2
The exploration of topological electronic phases that result from strong electronic correlations is a frontier in condensed matter physics. One class of systems that is currently emerging as aExpand


Inhomogeneous magnetism in URu2Si2 studied by muon spin relaxation under high pressure
Abstract We have studied the low-temperature phase below 17.5 K in the heavy-fermion superconductor URu 2 Si 2 , using the zero-field μSR technique under hydrostatic pressures P up to 0.85 GPa . TheExpand
Pressure effect on magnetic ground states in Tl(Cu1−xMgx)Cl3 with x = 0.015 probed by muon-spin-rotation
Muon-spin-rotation (μSR) measurements under hydrostatic pressures in Tl(Cu1−xMgx)Cl3. with x = 0.015 were carried out in order to investigate the reported crossover from impurity-induced phase toExpand
High pressure μSR studies: rare earths and related materials
After a short introduction to μSR with respect to the study of magnetic properties, followed by a brief outline of the principle of the high pressure-low temperature μSR spectrometer installed at theExpand
Pressure induced static magnetic order in superconducting FeSe1-x.
A detailed investigation of the electronic phase diagram of FeSe1-x under pressures up to 1.4 GPa by means of ac magnetization and muon-spin rotation finds it to be one of the most interesting superconducting systems investigated extensively at present. Expand
Pressure-Induced Quantum Critical and Multicritical Points in a Frustrated Spin Liquid
The quantum spin-liquid compound (C4H12N2)Cu2Cl6 is studied by muon spin relaxation under hydrostatic pressures up to 23.6 kbar. At low temperatures, pressure-induced incommensurate magnetic order isExpand
High pressure μSR studies on single crystalline gadolinium
Muon spin rotation data on a single crystalline gadolinium sample have been obtained as function of temperature and hydrostatic external pressure up to 0.6 GPa.In the ferromagnetic state theExpand
Pressure-induced new magnetic phase in Tl(Cu0.985Mg0.015)Cl3 probed by muon spin rotation
We carried out zero-field muon-spin-rotation (ZF-μSR) measurements in hydrostatic pressures in impurity-doped quantum spin gap system Tl(Cu0.985Mg0.015)Cl3 to investigate microscopic magneticExpand
Muon-Spin Rotation and Magnetization Studies of Chemical and Hydrostatic Pressure Effects in EuFe2(As1−xPx)2
The magnetic phase diagram of EuFe2(As1−xPx)2 was investigated by means of magnetization and muon-spin rotation (μSR) studies as a function of chemical (isovalent substitution of As by P) andExpand
High pressure μSR studies
The high pressureμSR spectrometer [1] formerly located at CERN has been transferred to theμE1-beamline at PSI and put back into operation with only minor modifications. The essential features of theExpand
Muon spin rotation investigation of the pressure effect on the magnetic penetration depth in YBa 2 Cu 3 O x
The pressure dependence of the magnetic penetration depth in polycrystalline samples of YBa2Cu3Ox with different oxygen concentrations x = 6.45, 6.6, 6.8, and 6.98 was studied by muon spin rotationExpand