Magnetoelectric effect in multiferroic NdMn2O5

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

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.

Keywords: sol-gel synthesis dielectric constant magnetoelectric effect phase transition

Received: 30 July 2016
Revised: 25 September 2016
Accepted manuscript online:

PACS:	81.20.Fw	(Sol-gel processing, precipitation)
	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)

Fund: Project supported by Higher Education Commission (HEC) of Pakistan through its IRSIP scholarship program (IRSIP 27 PS 28).

Corresponding Authors: Syed Hamad Bukhari
E-mail: bukhari.hamad@gmail.com

Cite this article:

Syed Hamad Bukhari, Javed Ahmad Magnetoelectric effect in multiferroic NdMn₂O₅ 2017 Chin. Phys. B 26 018103

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Magnetoelectric effect in multiferroic NdMn2O5

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Magnetoelectric effect in multiferroic NdMn₂O₅