Journal of the Korean Magnetic Resonance Society (한국자기공명학회논문지)

Korean Magnetic Resonance Society (한국자기공명학회)
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Study on nuclear magnetic resonance of superionic conductor NH4HSeO4 in rotating frame

  • Choi, Jae Hun (Department of Carbon Fusion Engineering, Jeonju University) ;
  • Lim, Ae Ran (Department of Carbon Fusion Engineering, Jeonju University)
  • Received : 2014.04.10
  • Accepted : 2014.06.10
  • Published : 2014.06.20
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Abstract

In order to obtain information on the structural geometry of $NH_4HSeO_4$ near the phase transition temperature, the spectrum and spin-lattice relaxation time in the rotating frame $T_{1{\rho}}$ for the ammonium and hydrogen-bond protons were investigated through $^1H$ MAS NMR. $T_{1{\rho}}$ for the hydrogen-bond protons abruptly decreased at high temperature and it is associated with the change in the structural geometry in $O-H{\cdots}O$ bonds. This mobility of the hydrogen-bond protons may be the main reason for the high conductivity.

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References

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