Application of CRAMPS for a Phase Transition in H+-ion irradiated TlH2PO4Application of CRAMPS for a Phase Transition in H+-ion irradiated TlH2PO4
- Other Titles
- Application of CRAMPS for a Phase Transition in H+-ion irradiated TlH2PO4
- Authors
- 한덕영; 한준희; 이철의; 이광세; 김창삼; Naresh Dalal; 김세헌
- Issue Date
- 2010
- Publisher
- 한국자기공명학회
- Keywords
- CRAMPS; TlH2PO4; solid-state NMR; Proton beam irradiation
- Citation
- Journal of the Korean Magnetic Resonance Society, v.14, no.2, pp.134 - 143
- Indexed
- KCI
- Journal Title
- Journal of the Korean Magnetic Resonance Society
- Volume
- 14
- Number
- 2
- Start Page
- 134
- End Page
- 143
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/117598
- ISSN
- 1226-6531
- Abstract
- We studied the hydrogen-bonded TlH2PO4 (TDP) ferroelectrics treated with the proton-beam bombardment. The TDP material was irradiated with 1-MeV proton beam at a dose of 1015/cm2. In order to analyze the hydrogen environment in TDP, we carried out the 1H high resolution nuclear magnetic resonance (NMR) - i.e., Combined Rotation And Multiple Pulse Spectroscopy (CRAMPS) measurement. The isotropic chemical shift of hydrogen indicates its displacive property is related to the PO4 lattice deformation which occurs throughout the antiferroelectric-, the ferroelastic- and the paraelastic-phase transitions. The temperature dependence of iso reveals the electronic charge redistribution is induced by the proton-beam irradiation and the elastic property.
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