Contemplations on the impressions of MeV swift heavy ion irradiation on nonlinear optical dimethyl-amino-pyridinium-4-nitrophenolate-4-nitro-phenol (DMAPNP) single crystals

P. Srinivasan, T. Kanagasekaran, D. Kanji Lal, R. Gopalakrishnan, P. Ramasamy

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)

Abstract

Organic nonlinear optical crystal dimethyl-amino-pyridinium-4- nitrophenolate-4-nitro-phenol was subjected to 100 MeV Ag8+ ions and 50 MeV Si8+ ions. The radiation effects are studied in terms of processes observed with the pristine samples and in comparison with them. The dielectric properties of the crystals were studied before and after irradiation from 100 Hz to 5 MHz at various temperatures (308-383 K). A drastic increase in the dielectric constant is seen due to irradiation. The dielectric constant and conductivity increases with the increase of irradiation fluence for the samples. The observed results are discussed in detail.

Original languageEnglish
Pages (from-to)693-702
Number of pages10
JournalRadiation Effects and Defects in Solids
Volume163
Issue number8
DOIs
Publication statusPublished - 2008 Aug
Externally publishedYes

Keywords

  • Conductivity
  • Dielectric constant
  • Ion irradiation

ASJC Scopus subject areas

  • Radiation
  • Nuclear and High Energy Physics
  • Materials Science(all)
  • Condensed Matter Physics

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