Abstract
The H+-ion treatment effect on TlH2PO4, a KH2PO4 (KDP)-type ferroelectrics, was studied by nuclear magnetic resonance (NMR) and AC dielectric constant measurements. A sample of TlH2PO4 was irradiated by 1-MeV H+ ion beams to a dose of 1015 ions/cm2. The change in the NMR relaxation behaviors after the irradiation was attributed that in the hydrogen-bond geometry, presumably affecting the order-disorder proton dynamics. A prominent decrease in the dielectric constant was also observed after the irradiation. The macroscopic and microscopic changes due to the irradiation are discussed in the light of the proton dynamics.
Original language | English |
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Pages (from-to) | 182-184 |
Number of pages | 3 |
Journal | Current Applied Physics |
Volume | 6 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2006 Feb |
Event | Engineering Aspects of Nanomaterials and Technologies - Duration: 2005 Jan 24 → 2005 Jan 27 |
Bibliographical note
Funding Information:This work was supported by the KISTEP (National Research Laboratory and Proton Accelerator User Program No. M202AK010021-04A1101-02110) and by the Korea Research Foundation (Grant No. KRF-2004-005-C00060 and Brain Korea 21 Project in 2004). Measurements at the Korean Basic Science Institute (KBSI) are acknowledged.
Keywords
- Dielectric constant
- Ferroelectrics
- NMR
- Proton beam irradiation
- TlHPO
ASJC Scopus subject areas
- General Materials Science
- General Physics and Astronomy