TY - JOUR
T1 - Electrical and magnetic properties of cold compacted iron-doped zinc sulfide nanoparticles synthesized by wet chemical method
AU - Bhattacharya, Santanu
AU - Chakravorty, Dipankar
N1 - Funding Information:
The work has been carried out under a project supported by Department of Science and Technology, Government of India, New Delhi under its Nano Science and Technology Initiative Programme. S. Bhattacharya thanks Council of Scientific and Industrial Research, New Delhi for the award of a Senior Research Fellowship. D. Chakravorty thanks Indian National Science Academy, New Delhi for awarding a Senior Scientist position.
PY - 2007/8/27
Y1 - 2007/8/27
N2 - 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.
AB - 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.
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U2 - 10.1016/j.cplett.2007.07.040
DO - 10.1016/j.cplett.2007.07.040
M3 - Article
AN - SCOPUS:34547785537
SN - 0009-2614
VL - 444
SP - 319
EP - 323
JO - Chemical Physics Letters
JF - Chemical Physics Letters
IS - 4-6
ER -