Charge dynamics in KH2PO4 systematically modified by proton irradiation

Abstract

Our systematic study employing high-resolution nuclear magnetic resonance measurements shows that the hydrogen bonds and proton transport in the KH2PO4 (KDP) system may be tuned sensitively by proton irradiation. In particular, the hydrogen-bond length in KDP increased by a properly chosen dose of proton irradiation is shown to give rise to a minimum in the activation energy of proton hopping in the hydrogen-bond direction. (C) 2011 American Institute of Physics. [doi:10.1063/1.3622334]