Zen diamond-anvil low-pressure cell

Abstract

A diamond-anvil cell can be operated with only one anvil in order to generate modest pressures in relatively large volumes. We demonstrate it to pressures up to 2.5 GPa with gaskets of steel, brass, and other metals, with a sample chamber 0.25 mm in diameter by 0.25-0.9 mm depth, and with various pressure media. In this form the cell is very simple to operate and is useful for much work on biological systems and soft solids which requires pressures in the 1 GPa range.

Pressure coefficients of Raman modes of carbon nanotubes resolved by chirality: Environmental effect on graphene sheet

“…The pressure experiments were carried out in a diamond-anvil cell operated in the Zen configuration (using a single diamond 11 ), which permits good control over the pressure in the range 0 -2GPa. The pressure was measured using the standard technique of ruby photoluminescence.…”

“…RBM and G-mode spectra for the excitation energies and pressures marked, offset vertically for clarity. The spectra under 1.75eV excitation (upper group) are assigned to the (9, 1) chirality, the spectra under 1.64eV excitation (middle group) to the (11, 0) and (10, 2) chiralities and the spectra under 1.53eV (lower group) to the (12, 1) and (11,3) chiralities.…”

G‐mode behaviour of closed ended single wall carbon nanotubes under pressure

“…The maximum laser power reaching the base of the diamond, through an ×20 objective, was about 2 mW. The high pressure Raman measurements were performed using the MCDAC in the standard and Zen configurations [7] for the higher (3-6.5 GPa) and lower (0-3 GPa) pressure ranges respectively. The hydrostatic pressure was measured using a small chip of ruby placed in the DAC, and pure…”

Raman spectroscopy of single‐walled carbon nanotubes at high pressure: Effect of interactions between the nanotubes and pressure transmitting media

“…A single Lorentzian was used for fitting the spectra in liquid argon since the observed signal was weaker and had a different lineshape due to the different laser excitation wavelength. A Mao-Bell type DAC was used for the experiments, except for those with liquid argon for which a standard MCDAC was used to attain the higher pressures and an MCDAC in the Zen configuration [5] for the lower pressures. Since some of the solvents are not commonly used in high pressure experiments the linewidth of the Ruby PL lines was monitored using the methodology in Ref.…”