Study of the proton-beam irradiation effects on TlH2PO 4

Se Hun Kim, Kyu Won Lee, Jae Won Jang, Cheol Eui Lee, K. S. Lee, S. J. Noh

Research output: Contribution to journalConference articlepeer-review

7 Citations (Scopus)


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 languageEnglish
Pages (from-to)182-184
Number of pages3
JournalCurrent Applied Physics
Issue number2
Publication statusPublished - 2006 Feb
EventEngineering Aspects of Nanomaterials and Technologies -
Duration: 2005 Jan 242005 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.


  • Dielectric constant
  • Ferroelectrics
  • NMR
  • Proton beam irradiation
  • TlHPO

ASJC Scopus subject areas

  • General Materials Science
  • General Physics and Astronomy


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