Electrical and magnetic properties of cold compacted iron-doped zinc sulfide nanoparticles synthesized by wet chemical method

Santanu Bhattacharya, Dipankar Chakravorty

Research output: Contribution to journalArticlepeer-review

26 Scopus citations

Abstract

Iron-doped (1-5%) zinc sulfide nanocrystals were synthesized with sizes ranging from 2 to 4 nm. Resistivity measurements were carried out on cold compacted specimens over the temperature range 313-472 K. A resistivity decrease of about 10 orders of magnitude was observed as compared to that of ZnS samples. The data analysis showed that conduction occurred by a small polaron hopping mechanism between Fe2+ and Fe3+ ions concentrated at the nanocrystal interfaces. Low temperature magnetization studies indicated ferromagnetic behaviour arising out of a one-dimensional magnetic system with antiparallel spin alignment.

Original languageEnglish (US)
Pages (from-to)319-323
Number of pages5
JournalChemical Physics Letters
Volume444
Issue number4-6
DOIs
StatePublished - Aug 27 2007

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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