Magnetic and dielectric properties of HoMnO3 nanoparticles 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 HoMnO₃ nanoparticles synthesized by the polymerized complex method

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

The Hong Kong Polytechnic University

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

2 Citations (Scopus)

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 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 (T_SR) 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

General Materials Science
Condensed Matter Physics

More information

10.1016/j.matchemphys.2013.03.010

Cite this

@article{4fa35373ce4448f0b83ae0e3148ddf86,

title = "Magnetic and dielectric properties of HoMnO3 nanoparticles synthesized by the polymerized complex method",

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 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",

note = "Funding Information: This study has been supported partly by the National Natural Science Foundation of China (Grant Nos. 51201002, 51001001 and 21071003 ), by the Research Grants Council of the HKSAR Government ( PolyU 5236/12E ), and by The Hong Kong Polytechnic University ( G-YK59, 4-ZZ7L and G-YX3V ).",

year = "2013",

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doi = "10.1016/j.matchemphys.2013.03.010",

language = "English",

volume = "140",

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journal = "Materials Chemistry and Physics",

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T1 - Magnetic and dielectric properties of HoMnO3 nanoparticles 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

N1 - Funding Information: This study has been supported partly by the National Natural Science Foundation of China (Grant Nos. 51201002, 51001001 and 21071003 ), by the Research Grants Council of the HKSAR Government ( PolyU 5236/12E ), and by The Hong Kong Polytechnic University ( G-YK59, 4-ZZ7L and G-YX3V ).

PY - 2013/6/15

Y1 - 2013/6/15

N2 - 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 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 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 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.

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

UR - https://www.scopus.com/pages/publications/84877581391

U2 - 10.1016/j.matchemphys.2013.03.010

DO - 10.1016/j.matchemphys.2013.03.010

M3 - Journal article

AN - SCOPUS:84877581391

SN - 0254-0584

VL - 140

SP - 126

EP - 129

JO - Materials Chemistry and Physics

JF - Materials Chemistry and Physics

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