On the thermal expansion of nanoparticles
- 1 January 2000
- journal article
- Published by Pleiades Publishing Ltd in Physics of the Solid State
- Vol. 42 (1) , 112-113
- https://doi.org/10.1134/1.1131176
Abstract
Magnetite nanoparticles with an average particle size of 7.5 nm were studied by Mössbauer spectroscopy in the 100–300 K temperature range. Using experimental data on the temperature variation of isomer shifts in the partial spectra of 57Fe nuclei in the A and B crystal sublattices, the linear thermal expansion coefficient of the ultradisperse magnetite particles in the temperature range studied was estimated within the framework of the molecular orbital formalism: α=(1.2±0.2)×10−4K−1.Keywords
This publication has 2 references indexed in Scilit:
- Effects of the nanocrystalline state in solidsUspekhi Fizicheskih Nauk, 1998
- NanoparticlesIl Nuovo Cimento D, 1996