Charge ordering in Nd1=2Sr1=2MnO3 Nanoparticles

TL;DR

This study investigates charge ordering phenomena in Nd1/2Sr1/2MnO3 nanoparticles of 12 nm and 25 nm sizes, revealing that charge order persists at low temperatures despite the small particle size.

Contribution

It demonstrates the presence of charge ordered states in nanoparticles much smaller than the bulk correlation length, using comprehensive transport and magnetic measurements.

Findings

Charge ordering observed at low temperatures in nanoparticles.

Charge order persists despite particle sizes being much smaller than bulk correlation length.

Transport and magnetization properties confirm charge ordering phenomena.

Abstract

Nanoparticles of Nd1=2Sr1=2MnO3 of average particle sizes 12 nm and 25 nm are prepared by sol-gel technique. Transport, magnetotransport, magnetization and I-V characteristics studies have been performed on the nanoparticles. Although the particle size is order of magnitude smaller than the correlation length of charge ordering of the bulk material,the existence of charge ordered state has been observed in the nanoparticles at low temperature.