Physical properties of Eu3Ba2Mn2Cu2O12

Kumar, N. ; Rayaprol, S. ; Dogra, A. ; Kaushik, S. D. ; Singh, K. ; Gaur, N. K. ; Anjum, G. ; Kumar, Y. ; Kumar, Ravi ; Iyer, K. K. ; Sampathkumaran, E. V. (2010) Physical properties of Eu3Ba2Mn2Cu2O12 AIP Conference Proceedings, 1313 . pp. 355-357. ISSN 1551-7616

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Official URL: http://proceedings.aip.org/resource/2/apcpcs/1313/...

Related URL: http://dx.doi.org/10.1063/1.3530544

Abstract

The physical properties of the manganocuprate compound, Eu3Ba2Mn2Cu2O12 (Eu-3222) are investigated using X-ray diffraction, resistivity, magnetization and dielectric measurements. The structure of the Eu-3222 compound is made by the intermixing of Eu-123 (oxygen deficient triple perovskite block) and Eu-214 (K2NiF4 type single rock-salt like block). Electrical resistivity data show insulating behavior down to the measurable temperature and exhibits a conduction mechanism which can be explained on the basis of 3D variable range hopping model. Magnetization data shows a antiferromagnetic behavior at 5 K, however without any clear signature of magnetic ordering in the temperature range 5-300 K. Dielectric (Capacitance), measured as a function of temperature at various frequencies exhibits frequency dependence, indicating glassy relaxation of dipole moments.

Item Type:Article
Source:Copyright of this article belongs to American Institute of Physics.
Keywords:X-ray Diffraction; Magnetisation; Resistivity; Electrical; Antiferromagnetic Materials
ID Code:92909
Deposited On:06 Jun 2012 13:49
Last Modified:06 Jun 2012 13:49

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