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NMR study of proton beam irradiated TlH2PO4

Published online by Cambridge University Press:  01 February 2011

Se Hun Kim ,
Kyu Won Lee ,
Jae Won Jang  and
Cheol Eui Lee
Se Hun Kim
Affiliation:
Department of Physics, Korea University, Seoul 136–701, Korea
Kyu Won Lee
Affiliation:
Department of Physics, Korea University, Seoul 136–701, Korea
Jae Won Jang
Affiliation:
Department of Physics, Korea University, Seoul 136–701, Korea
Cheol Eui Lee
Affiliation:
Department of Physics, Korea University, Seoul 136–701, Korea
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Abstract

We have investigated proton beam irradiation effects on TlH2PO4 (TDP) showing an antiferroelectric phase transition and a ferroelastic phase transition. The sample was irradiated by 1 MeV proton beams to a dose of 1015 ions/cm2 and studied by means of 1H NMR measurements. The NMR rotating-frame spin-lattice relaxation time was measured as a function of temperature, and analyzed in order to understand the proton motions and the order parameter reflecting the structural changes caused by the proton irradiation.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 792: Symposium R – Radiation Effects and Ion Beam Processing of Materials , 2003 , R3.16
Copyright
Copyright © Materials Research Society 2004

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