Method description
The MGML infrastructure has various types of pressure cells to its disposal, designed to different environments and tasks. Generally, these cells are suited for the investigation of material properties which would be otherwise unreachable, ranging from the mapping of the phase diagram of the given compound as a function of pressure to the detailed investigation of materials properties under extreme conditions.
Cell types available at disposal:
- MPMS low pressure cell
- small pressure cell fitting in the limited sample space of MPMS
- hydrostatic pressure 1 GPa max, Pb manometer, sample space ~ 1 mm3
- magnetization, AC susceptibility
- MPMS high pressure cell
- small DAC-type pressure cell fitting in the limited sample space of MPMS
- hydrostatic pressure 8 GPa max, ruby manometer, sample space ~ 20 μm x ⌀100 μm
- magnetization, AC susceptibility
- MPMS uniaxial pressure cell
- small cell fitting in the limited sample space of MPMS
- maximum pressure strongly depends on the sample quality, force manometer, sample space ~ 1 mm3
- magnetization, AC susceptibility, resistivity
- large volume pressure cell
- typically used in CCR
- hydrostatic pressure 1 GPa max, manganin manometer, sample space ~ 2 x 2 x 7 mm
- magnetization (Hall probe), AC susceptibility, resistivity, thermal expansion (strain gauge), heat capacity
- general purpose pressure cell
- hydrostatic pressure 3 GPa max, manganin manometer, sample space ~ 1 x 1 x 5 mm
- magnetization (Hall probe), AC susceptibility, resistivity, thermal expansion (strain gauge), heat capacity
- DAC-type pressure cell
- hydrostatic pressure 6 GPa max, Pb manometer, sample ~ 50 μm thickness, ~ 400 μm length
- resistivity, heat capacity
- DAC-type high pressure cell
Where to use it?
Pressures method is available in the following cryostats:
Fig. 1: General purpose pressure cell
Fig. 2: DAC-type pressure cell