31P nuclear magnetic resonance study of the proton-irradiated KTiOPO4

Se Hun Kim, Cheol Eui Lee

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

31P nuclear magnetic resonance (NMR) was employed to study the effects of proton irradiation on KTiOPO4 (KTP) in view of the previously studied paramagnetic impurity doping effects. High-resolution 31P NMR measurements showed significant increase in the isotropic chemical shifts of the two inequivalent phosphorus sites in the proton-irradiated KTP system, indicating decrease in the electron density around the phosphorous nuclei. The 31P NMR linewidths of the KTP system manifested anomalies associated with the superionic transition and with the polaron formation, which became much weaker after proton irradiation. Besides, the activation energy of the charge carriers increased significantly after proton irradiation.

Original languageEnglish
Pages (from-to)28-30
Number of pages3
JournalSolid State Communications
Volume168
DOIs
Publication statusPublished - 2013 Oct 17

Fingerprint

Proton irradiation
proton irradiation
Protons
Nuclear magnetic resonance
nuclear magnetic resonance
protons
Magnetic resonance measurement
Gene Conversion
Chemical shift
Charge carriers
Linewidth
Phosphorus
Carrier concentration
chemical equilibrium
phosphorus
charge carriers
Activation energy
Doping (additives)
Impurities
anomalies

Keywords

  • A. KTiOPO
  • D. Proton-irradiation effect
  • E. High-resolution P nuclear magnetic
  • Resonance

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Chemistry(all)
  • Materials Chemistry

Cite this

31P nuclear magnetic resonance study of the proton-irradiated KTiOPO4 . / Kim, Se Hun; Lee, Cheol Eui.

In: Solid State Communications, Vol. 168, 17.10.2013, p. 28-30.

Research output: Contribution to journalArticle

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AB - 31P nuclear magnetic resonance (NMR) was employed to study the effects of proton irradiation on KTiOPO4 (KTP) in view of the previously studied paramagnetic impurity doping effects. High-resolution 31P NMR measurements showed significant increase in the isotropic chemical shifts of the two inequivalent phosphorus sites in the proton-irradiated KTP system, indicating decrease in the electron density around the phosphorous nuclei. The 31P NMR linewidths of the KTP system manifested anomalies associated with the superionic transition and with the polaron formation, which became much weaker after proton irradiation. Besides, the activation energy of the charge carriers increased significantly after proton irradiation.

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