Magnetic and Dielectric Properties in Multiferroic Y-type Hexaferrite

Wenfei XuKey Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronic Engineering, East China Normal University, Shanghai, People's Republic of China

Zhi WangKey Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronic Engineering, East China Normal University, Shanghai, People's Republic of China

Jing YangKey Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronic Engineering, East China Normal University, Shanghai, People's Republic of China

Wei BaiKey Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronic Engineering, East China Normal University, Shanghai, People's Republic of China

Yuanyuan ZhangKey Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronic Engineering, East China Normal University, Shanghai, People's Republic of China

Xiaodong TangKey Laboratory of Polar Materials and Devices, Ministry of Education, Department of Electronic Engineering, East China Normal University, Shanghai, People's Republic of China;Key Laboratory of Inorganic Functional Materials and Devices, Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai, People's Republic of ChinaCorrespondence[email protected]

Abstract

Polycrystalline samples of Ba_0.5Sr_1.5Zn₂(Fe_0.96Al_0.04)₁₂O₂₂ were synthesized by solid-state reaction method, and structural, magnetic and dielectric properties were investigated. The magnetic data indicate four magnetic spin-order structures exist in the samples. The Curie temperature is found to be 712 K. The sample also exhibits obvious dispersion in dielectric permittivity and dielectric loss values as a function of the frequency at room temperature, which may be interpreted as Maxwell-Wagner type dielectric relaxation.

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Funding

The work was supported by Natural Science Foundation of China (Grant Nos. 61176011, 61376129, and 51302084), Natural Science Foundation of Shanghai (Nos. 11ZR1410800 and 13ZR1412200), KLIFMD-2011-06, and Fundamental Research Funds for the Central Universities (ECNU).

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Magnetic and Dielectric Properties in Multiferroic Y-type Hexaferrite

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Magnetic and Dielectric Properties in Multiferroic Y-type Hexaferrite

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