Study on magnetic and dielectric properties of YMnO3ceramics

Chao Zhang; Jie Su; Xiaofei Wang; Fengzhen Huang; Junting Zhang; Yaoyang Liu; Liang Zhang; Kangli Min; Zhijun Wang; Xiaomei Lu; Feng Yan; Jinsong Zhu

doi:10.1016/j.jallcom.2011.04.128

Study on magnetic and dielectric properties of YMnO₃ceramics

Chao Zhang
, Jie Su
, Xiaofei Wang
, Fengzhen Huang
, Junting Zhang
, Yaoyang Liu
, Liang Zhang
, Kangli Min
, Zhijun Wang
, Xiaomei Lu
, Feng Yan
, Jinsong Zhu

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

42 Citations (Scopus)

Abstract

The magnetic and dielectric properties were investigated in the hexagonal YMnO3ceramics synthesized by sol-gel method. An antiferromagnetic order about 70 K and a weak ferromagnetic order at 5 K have been detected in YMnO3ceramics. In addition, we observed also the exchange-bias (EB) effect at low temperatures and it may originate from exchange coupling at the interface between ferromagnetic and antiferromagnetic orders for the co-existence of these two orders in some temperature region in hexagonal YMnO3. Furthermore, the dielectric measurements showed two thermally activated relaxation behaviors following the Arrhenius law in 290-430 K and above 500 K in YMnO3ceramics and they can be explained as the dipolar effects associated with the charge carrier hopping between Mn2+and Mn3+and oxygen vacancy, respectively.

Original language	English
Pages (from-to)	7738-7741
Number of pages	4
Journal	Journal of Alloys and Compounds
Volume	509
Issue number	29
DOIs	https://doi.org/10.1016/j.jallcom.2011.04.128
Publication status	Published - 21 Jul 2011

Keywords

Magnetic and dielectric properties
YMnO ceramics 3

ASJC Scopus subject areas

Mechanics of Materials
Mechanical Engineering
Metals and Alloys
Materials Chemistry

More information

10.1016/j.jallcom.2011.04.128

Cite this

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title = "Study on magnetic and dielectric properties of YMnO3ceramics",

abstract = "The magnetic and dielectric properties were investigated in the hexagonal YMnO3ceramics synthesized by sol-gel method. An antiferromagnetic order about 70 K and a weak ferromagnetic order at 5 K have been detected in YMnO3ceramics. In addition, we observed also the exchange-bias (EB) effect at low temperatures and it may originate from exchange coupling at the interface between ferromagnetic and antiferromagnetic orders for the co-existence of these two orders in some temperature region in hexagonal YMnO3. Furthermore, the dielectric measurements showed two thermally activated relaxation behaviors following the Arrhenius law in 290-430 K and above 500 K in YMnO3ceramics and they can be explained as the dipolar effects associated with the charge carrier hopping between Mn2+and Mn3+and oxygen vacancy, respectively.",

keywords = "Magnetic and dielectric properties, YMnO ceramics 3",

author = "Chao Zhang and Jie Su and Xiaofei Wang and Fengzhen Huang and Junting Zhang and Yaoyang Liu and Liang Zhang and Kangli Min and Zhijun Wang and Xiaomei Lu and Feng Yan and Jinsong Zhu",

year = "2011",

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doi = "10.1016/j.jallcom.2011.04.128",

language = "English",

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journal = "Journal of Alloys and Compounds",

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TY - JOUR

T1 - Study on magnetic and dielectric properties of YMnO3ceramics

AU - Zhang, Chao

AU - Su, Jie

AU - Wang, Xiaofei

AU - Huang, Fengzhen

AU - Zhang, Junting

AU - Liu, Yaoyang

AU - Zhang, Liang

AU - Min, Kangli

AU - Wang, Zhijun

AU - Lu, Xiaomei

AU - Yan, Feng

AU - Zhu, Jinsong

PY - 2011/7/21

Y1 - 2011/7/21

N2 - The magnetic and dielectric properties were investigated in the hexagonal YMnO3ceramics synthesized by sol-gel method. An antiferromagnetic order about 70 K and a weak ferromagnetic order at 5 K have been detected in YMnO3ceramics. In addition, we observed also the exchange-bias (EB) effect at low temperatures and it may originate from exchange coupling at the interface between ferromagnetic and antiferromagnetic orders for the co-existence of these two orders in some temperature region in hexagonal YMnO3. Furthermore, the dielectric measurements showed two thermally activated relaxation behaviors following the Arrhenius law in 290-430 K and above 500 K in YMnO3ceramics and they can be explained as the dipolar effects associated with the charge carrier hopping between Mn2+and Mn3+and oxygen vacancy, respectively.

AB - The magnetic and dielectric properties were investigated in the hexagonal YMnO3ceramics synthesized by sol-gel method. An antiferromagnetic order about 70 K and a weak ferromagnetic order at 5 K have been detected in YMnO3ceramics. In addition, we observed also the exchange-bias (EB) effect at low temperatures and it may originate from exchange coupling at the interface between ferromagnetic and antiferromagnetic orders for the co-existence of these two orders in some temperature region in hexagonal YMnO3. Furthermore, the dielectric measurements showed two thermally activated relaxation behaviors following the Arrhenius law in 290-430 K and above 500 K in YMnO3ceramics and they can be explained as the dipolar effects associated with the charge carrier hopping between Mn2+and Mn3+and oxygen vacancy, respectively.

KW - Magnetic and dielectric properties

KW - YMnO ceramics 3

UR - https://www.scopus.com/pages/publications/80955180220

U2 - 10.1016/j.jallcom.2011.04.128

DO - 10.1016/j.jallcom.2011.04.128

M3 - Journal article

SN - 0925-8388

VL - 509

SP - 7738

EP - 7741

JO - Journal of Alloys and Compounds

JF - Journal of Alloys and Compounds

IS - 29

ER -