We have studied the charge transport and dielectric properties of KH 2PO4 (KDP) single crystals, irradiated by proton beams with high energies up to 20 MeV, by means of the temperature-dependent electrical conductivity and dielectric constant measurements. It is shown that the electrical conductivity and the electric dipole moment may be sensitively controlled by the proton irradiation energy and dose. The activation energy and the dipole moment were shown to be strongly correlated.
Bibliographical noteFunding Information:
This work was supported by the National Research Foundation of Korea (Cyclotron Users Program 2012029495 , 2013057555 , and NRF-2010-0027963 ). The measurements at the Korean Basic Science Institute (KBSI) are acknowledged.
- Dielectric constant measurements
- Electrical conductivity
- Proton-irradiation effects
ASJC Scopus subject areas
- General Materials Science
- General Physics and Astronomy