Investigation of structural, magnetic and dielectric properties of Mo-doped ZnCu2Nb2O8

ADVANCES IN BASIC SCIENCE (ICABS 2019) Pub Date : 2019-08-29 DOI:10.1063/1.5122449

K. Roy, K. C. Kharkwal, A. Pramanik

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Abstract

We have studied structural,magnetic and dielectric properties of Mo-doped ZnCu2Nb2O8 with Mo replacing Nb ion. Here we have prepared polycrystalline samples ZnCu2(Nb1-x Mox)2O8 with x=0.0 and 0.1. X-ray powder diffraction and allied Rietveldrefinement analysis have been used to analyze the structure of the samples. The ZnCu2Nb2O8 shows paramagnetic behavior in whole temperature range. In ZnCu2Nb2O8, Nb+2(S=0) is a non-magnetic site, we have tried to tune the non-magnetic site with magnetic Mo+2(S=1/2). With Mo substitution at Nb-site, magnetic moment decreases and the system remainin paramagnetic state in whole temperature range. Effect of Mo doping shows a structural change in lattice parameters while there is no change in electrical properties as well as in magnetic properties. Frequency dependent dielectric measurement has been done at room temperature.We have studied structural,magnetic and dielectric properties of Mo-doped ZnCu2Nb2O8 with Mo replacing Nb ion. Here we have prepared polycrystalline samples ZnCu2(Nb1-x Mox)2O8 with x=0.0 and 0.1. X-ray powder diffraction and allied Rietveldrefinement analysis have been used to analyze the structure of the samples. The ZnCu2Nb2O8 shows paramagnetic behavior in whole temperature range. In ZnCu2Nb2O8, Nb+2(S=0) is a non-magnetic site, we have tried to tune the non-magnetic site with magnetic Mo+2(S=1/2). With Mo substitution at Nb-site, magnetic moment decreases and the system remainin paramagnetic state in whole temperature range. Effect of Mo doping shows a structural change in lattice parameters while there is no change in electrical properties as well as in magnetic properties. Frequency dependent dielectric measurement has been done at room temperature.

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掺钼ZnCu2Nb2O8的结构、磁性和介电性能研究

研究了Mo取代Nb离子掺杂ZnCu2Nb2O8的结构、磁性和介电性能。本文制备了x=0.0和0.1的多晶样品ZnCu2(Nb1-x Mox)2O8。用x射线粉末衍射和相关的里特维尔细化分析分析了样品的结构。ZnCu2Nb2O8在整个温度范围内均表现出顺磁性。在ZnCu2Nb2O8中，Nb+2(S=0)是一个非磁性位点，我们尝试用磁性Mo+2(S=1/2)来调整非磁性位点。铌位Mo取代后，磁矩减小，体系在整个温度范围内保持顺磁状态。Mo掺杂的影响表现为晶格参数的结构变化，而电性能和磁性能没有变化。在室温下进行了频率相关的介电测量。研究了Mo取代Nb离子掺杂ZnCu2Nb2O8的结构、磁性和介电性能。本文制备了x=0.0和0.1的多晶样品ZnCu2(Nb1-x Mox)2O8。用x射线粉末衍射和相关的里特维尔细化分析分析了样品的结构。ZnCu2Nb2O8在整个温度范围内均表现出顺磁性。在ZnCu2Nb2O8中，Nb+2(S=0)是一个非磁性位点，我们尝试用磁性Mo+2(S=1/2)来调整非磁性位点。铌位Mo取代后，磁矩减小，体系在整个温度范围内保持顺磁状态。Mo掺杂的影响表现为晶格参数的结构变化，而电性能和磁性能没有变化。在室温下进行了频率相关的介电测量。

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ADVANCES IN BASIC SCIENCE (ICABS 2019)

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