Study of the proton-beam irradiation effects on TlH2PO4
Study of the proton-beam irradiation effects on TlH2PO4
- 주제(키워드) 2PO4 , Ferroelectrics , NMR , Dielectric constant
- 발행기관 한국물리학회
- 발행년도 2006
- 총서유형 Journal
- UCI G704-001115.2006.6.2.015
- KCI ID ART000993061
- 본문언어 영어
초록/요약
The H+-ion treatment eect on TlH2PO4, a K H2PO4 (KDP)-type ferroelectrics, was studied by nuclear magnetic resonance(NMR) and AC dielectric constant measurements. A sample of TlH2PO4 + ion beams to a dose of1015 ions/cm2. The change in the NMR relaxation behaviors after the irradiation was attributed that in the hydrogen-bond geom-etry, presumably aecting the orderdisorder proton dynamics. A prominent decrease in the dielectric constant was also observedafter the irradiation. The macroscopic and microscopic changes due to the irradiation are discussed in the light of the protondynamics.
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