Magnetoelectric effect in multiferroic NdMn2O5

doi:10.1088/1674-1056/26/1/018103

中国物理B ›› 2017, Vol. 26 ›› Issue (1): 18103-018103.doi: 10.1088/1674-1056/26/1/018103

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇下一篇

Magnetoelectric effect in multiferroic NdMn₂O₅

Syed Hamad Bukhari, Javed Ahmad

Department of Physics, Bahauddin Zakariya University, Multan 60800, Pakistan

收稿日期:2016-07-30 修回日期:2016-09-25 出版日期:2017-01-05 发布日期:2017-01-05
通讯作者: Syed Hamad Bukhari E-mail:bukhari.hamad@gmail.com
基金资助:
Project supported by Higher Education Commission (HEC) of Pakistan through its IRSIP scholarship program (IRSIP 27 PS 28).

Magnetoelectric effect in multiferroic NdMn₂O₅

Syed Hamad Bukhari, Javed Ahmad

Department of Physics, Bahauddin Zakariya University, Multan 60800, Pakistan

Received:2016-07-30 Revised:2016-09-25 Online:2017-01-05 Published:2017-01-05
Contact: Syed Hamad Bukhari E-mail:bukhari.hamad@gmail.com
Supported by:
Project supported by Higher Education Commission (HEC) of Pakistan through its IRSIP scholarship program (IRSIP 27 PS 28).

摘要/Abstract

摘要： We have measured the dielectric constant for NdMn₂O₅ in an external magnetic field to map out the magnetoelectric phase diagram. The phase diagram corresponds well with the previously reported data of neutron diffraction and magnetic susceptibility. Our main finding is the observation of a dielectric anomaly in the low temperature phase with a strong magnetoelectric effect, which is attributed to the independent Nd³⁺ ordering. Moreover, the absence of the dielectric anomaly in the paramagnetic phase is discussed, keeping in view the exchange interaction and its dependence on the rare-earth R³⁺ ionic radius.

关键词: sol-gel synthesis, dielectric constant, magnetoelectric effect, phase transition

Abstract: We have measured the dielectric constant for NdMn₂O₅ in an external magnetic field to map out the magnetoelectric phase diagram. The phase diagram corresponds well with the previously reported data of neutron diffraction and magnetic susceptibility. Our main finding is the observation of a dielectric anomaly in the low temperature phase with a strong magnetoelectric effect, which is attributed to the independent Nd³⁺ ordering. Moreover, the absence of the dielectric anomaly in the paramagnetic phase is discussed, keeping in view the exchange interaction and its dependence on the rare-earth R³⁺ ionic radius.

Key words: sol-gel synthesis, dielectric constant, magnetoelectric effect, phase transition

中图分类号: (Sol-gel processing, precipitation)

81.20.Fw

78.20.Ci (Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity)) 75.85.+t (Magnetoelectric effects, multiferroics) 77.80.B- (Phase transitions and Curie point)

Syed Hamad Bukhari, Javed Ahmad. Magnetoelectric effect in multiferroic NdMn₂O₅[J]. 中国物理B, 2017, 26(1): 18103-018103.

Syed Hamad Bukhari, Javed Ahmad. Magnetoelectric effect in multiferroic NdMn₂O₅[J]. Chin. Phys. B, 2017, 26(1): 18103-018103.

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Magnetoelectric effect in multiferroic NdMn₂O₅

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