Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1522830 | Materials Chemistry and Physics | 2013 | 4 Pages |
Abstract
In this paper, we report on the magnetic and dielectric properties of HoMnO3 nanoparticles with different size synthesized by a polymerized complex method have been investigated. The HoMnO3 nanoparticles crystallized in hexagonal perovskite-type structure. The zero-field-cooled magnetic susceptibility curve of HoMnO3 nanoparticles with averaged size of 30Â nm shows that complicated magnetic transitions occurred in a temperature range from 2 to 100Â K, which was confirmed by magnetic hysteresis loops. With increasing the particle size, the antiferromagnetic (AFM) transition temperature increases from 56 to 77Â K, due to the reduced surface-to-volume ratio. Moreover, with a decrease in particle size, the Mn-spin reorientation temperature (TSR) is enhanced from 44 to 48Â K.
Related Topics
Physical Sciences and Engineering
Materials Science
Electronic, Optical and Magnetic Materials
Authors
Xianguo Liu, Siu Wing Or, Yuping Sun, Chuangui Jin, Yaohui Lv, Yuxi Wu,