Magnetic and dielectric properties of HoMnO3nanoparticles synthesized by the polymerized complex method

Xianguo Liu; Siu Wing Or; Yuping Sun; Chuangui Jin; Yaohui Lv; Yuxi Wu

doi:10.1016/j.matchemphys.2013.03.010

Magnetic and dielectric properties of HoMnO₃nanoparticles synthesized by the polymerized complex method

Xianguo Liu, Siu Wing Or, Yuping Sun, Chuangui Jin, Yaohui Lv, Yuxi Wu

Research output: Journal article publication › Journal article › Academic research › peer-review

1 Citation (Scopus)

Abstract

In this paper, we report on the magnetic and dielectric properties of HoMnO3nanoparticles with different size synthesized by a polymerized complex method have been investigated. The HoMnO3nanoparticles crystallized in hexagonal perovskite-type structure. The zero-field-cooled magnetic susceptibility curve of HoMnO3nanoparticles with averaged size of 30 nm shows that complicated magnetic transitions occurred in a temperature range from 2 to 100 K, which was confirmed by magnetic hysteresis loops. With increasing the particle size, the antiferromagnetic (AFM) transition temperature increases from 56 to 77 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 48 K.

Original language	English
Pages (from-to)	126-129
Number of pages	4
Journal	Materials Chemistry and Physics
Volume	140
Issue number	1
DOIs	https://doi.org/10.1016/j.matchemphys.2013.03.010
Publication status	Published - 15 Jun 2013

Keywords

Magnetic materials Nanostructures Magnetic properties Electron microscopy (STEM, TEM and SEM)

ASJC Scopus subject areas

Materials Science(all)
Condensed Matter Physics

More information

10.1016/j.matchemphys.2013.03.010

Cite this

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title = "Magnetic and dielectric properties of HoMnO3nanoparticles synthesized by the polymerized complex method",

abstract = "In this paper, we report on the magnetic and dielectric properties of HoMnO3nanoparticles with different size synthesized by a polymerized complex method have been investigated. The HoMnO3nanoparticles crystallized in hexagonal perovskite-type structure. The zero-field-cooled magnetic susceptibility curve of HoMnO3nanoparticles with averaged size of 30 nm shows that complicated magnetic transitions occurred in a temperature range from 2 to 100 K, which was confirmed by magnetic hysteresis loops. With increasing the particle size, the antiferromagnetic (AFM) transition temperature increases from 56 to 77 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 48 K.",

keywords = "Magnetic materials Nanostructures Magnetic properties Electron microscopy (STEM, TEM and SEM)",

author = "Xianguo Liu and Or, {Siu Wing} and Yuping Sun and Chuangui Jin and Yaohui Lv and Yuxi Wu",

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T1 - Magnetic and dielectric properties of HoMnO3nanoparticles synthesized by the polymerized complex method

AU - Liu, Xianguo

AU - Or, Siu Wing

AU - Sun, Yuping

AU - Jin, Chuangui

AU - Lv, Yaohui

AU - Wu, Yuxi

PY - 2013/6/15

Y1 - 2013/6/15

N2 - In this paper, we report on the magnetic and dielectric properties of HoMnO3nanoparticles with different size synthesized by a polymerized complex method have been investigated. The HoMnO3nanoparticles crystallized in hexagonal perovskite-type structure. The zero-field-cooled magnetic susceptibility curve of HoMnO3nanoparticles with averaged size of 30 nm shows that complicated magnetic transitions occurred in a temperature range from 2 to 100 K, which was confirmed by magnetic hysteresis loops. With increasing the particle size, the antiferromagnetic (AFM) transition temperature increases from 56 to 77 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 48 K.

AB - In this paper, we report on the magnetic and dielectric properties of HoMnO3nanoparticles with different size synthesized by a polymerized complex method have been investigated. The HoMnO3nanoparticles crystallized in hexagonal perovskite-type structure. The zero-field-cooled magnetic susceptibility curve of HoMnO3nanoparticles with averaged size of 30 nm shows that complicated magnetic transitions occurred in a temperature range from 2 to 100 K, which was confirmed by magnetic hysteresis loops. With increasing the particle size, the antiferromagnetic (AFM) transition temperature increases from 56 to 77 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 48 K.

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DO - 10.1016/j.matchemphys.2013.03.010

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