High Pressure Workshop

Session

Afternoon Session 2

22 Nov 2023, 15:30

Auditorium (WHGA) (PSI Villigen)

20. Expanding high-pressure neutron instrumentation capabilities

Julien GONTHIER (Institut Laue Langevin)

22/11/2023, 15:30

Talk

The demand for high-pressure equipment has doubled over the last decade at the Institut Laue-Langevin. To cope with this demand and ensure successful experiments, we have enhanced pressure generators and expanded our suite of pressure devices.

First, we have significantly improved the 1 GPa liquid pressure generators with:
- a comprehensive revamp of the automation program improving the...

11. Study of Background Noise in High-Pressure Neutron Scattering Experiments

Zhanwen Ma (PSI - Paul Scherrer Institut)

22/11/2023, 15:45

Talk

Advanced high-pressure neutron scattering experiments demand a high neutron flux and precise phase space at small sample volumes, while maintaining a high signal-to-noise ratio. This work is dedicated to a comprehensive evaluation of background noise in high-pressure neutron scattering experiments, employing simulations and benchmark experiments. McStas 3.2 with the Union component is used to...

7. Magnetic properties of strained (010)-DyFeO3 thin films and single crystals

Christof Schneider (PSI - Paul Scherrer Institut)

22/11/2023, 16:00

Talk

Strain in antiferromagnetic orthoferrite thin films is predicted to significantly change magnetic properties and result in a polar response up to room temperature. Orthorhombic DyFeO₃ is of particular interest since the Fe-spins undergo a spin-reorientation with transition temperatures depending strongly on the Dy-Fe interaction and a magnetic field induced ferroelectric phase below...

6. Complex Order Parameter Tuning in Superconducting La1.88Sr0.12CuO4

Julia Küspert (University of Zurich)

22/11/2023, 16:15

Talk

High-temperature superconducting cuprates are a model system to examine the relationship between intertwined quantum phases. The competition has, however, been difficult to tune with external stimuli without inducing superconducting vortices by a magnetic field at the same time. In our study, we show that $c$-axis strain couples directly to the phase competition between charge stripe order and...

10. Pressure tuning of quantum matter: A local-probe perspective

Toni Shiroka (PSI - Paul Scherrer Institut)

22/11/2023, 16:30

Talk

The demanding experimental conditions required to access the quantum critical behavior of many materials (including high magnetic fields, high pressures, and ultra-low temperatures), make their microscopic investigation often problematic. Over the years, techniques such as the nuclear magnetic resonance and muon-spin rotation/relaxation have emerged as complementary, well suited (and often...