High-Pressure Dielectric Cell (UPV/EHU)

Dielectric spectroscopy

Description

Dielectric spectroscopy consists in the study of the frequency dependent complex dielectric permittivity of insulator materials. The frequency range more commonly investigated is below a few GHz where the dielectric response of the insulator materials is usually dominated by orientational polarization processes. If the material under investigation contains permanent dipoles with a molecular origin, the dielectric spectroscopy would allow to get insight about the molecular motions.

In this instrument a broad-band spectrometer (10mHz- 1MHz) is connected to a sample cell where sample pressure can be modified in the range 1 - 3000 Bar. Using pressure as a variable allows to investigate the direct effect of sample density variations in its dielectric response.

Click here for obtaining specific details on this instrument

Local Contacts

• Dr. Silvia Arrese-Igor
• Prof. Angel Alegria

Back to WP1 instruments