Mössbauer Studies on Nanocrystalline Diol Capped γ-Fe2O3 |
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Authors: | Ghose J Varadwaj K S K Das D |
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Institution: | 1. Departamento de Física, Facultad de Ciencias Exactas, Universidad Nacional de La Plata, C.C. 67, 1900, La Plata, Argentina
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Abstract: | Nanocrystalline indium (nano-In) was prepared with different particle sizes by electrochemical deposition. The temperature
dependence of the local electric field gradient (EFG) of nano-In was investigated in a temperature range of 20–300 K using
the probe 111In for perturbed γγ angular correlation (PAC) experiments. The temperature dependence of the EFG of nano-In can be described
by a (1−BT
3/2) dependence as in bulk-In. It is shown that the low temperature value of the EFG and the proportionality constant B vary
systematically with particle size. |
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Keywords: | electric field gradient nano-indium PAC temperature dependence |
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