硒化钴的结构、x射线光谱和低温磁性研究

7TH NATIONAL CONFERENCE ON HIERARCHICALLY STRUCTURED MATERIALS (NCHSM-2019) Pub Date : 2019-06-28 DOI:10.1063/1.5114586

S. Ariponnammal, R. Velvizhi

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引用次数: 1

摘要

硒化钴是一种重要的过渡金属硫族化合物。在300K ~ 20K的温度范围内，用x射线粉末衍射和低温磁性研究对其进行了表征。XRD研究证实了化合物的正交结构，晶格参数为a = 6.557±0.02 a, b = 3.588±0.02 a, c = 5.200±0.02 a。磁化率的研究为样品中钴自旋之间的协同相互作用提供了线索。M-H曲线证实了化合物在20K ~ 300K温度范围内的铁磁性。饱和磁化强度和保持率几乎是恒定的。磁场和低温的作用使自旋取向有序。硒化钴是一种重要的过渡金属硫族化合物。在300K ~ 20K的温度范围内，用x射线粉末衍射和低温磁性研究对其进行了表征。XRD研究证实了化合物的正交结构，晶格参数为a = 6.557±0.02 a, b = 3.588±0.02 a, c = 5.200±0.02 a。磁化率的研究为样品中钴自旋之间的协同相互作用提供了线索。M-H曲线证实了化合物在20K ~ 300K温度范围内的铁磁性。饱和磁化强度和保持率几乎是恒定的。磁场和低温的作用使自旋取向有序。

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Structural, x-ray spectroscopic and low temperature magnetic studies on cobalt selenide

Cobalt Selenide is an important transition metal chalcogenide. It has been characterized by x-ray powder diffraction and low temperature magnetic studies in the temperature range 300K to 20K. The XRD study confirms the orthorhombic structure of the compound with lattice parameters a = 6.557±0.02A, b = 3.588±0.02 A and c = 5.200±0.02 A. The study of magnetic susceptibility gives the hints for cooperative interaction between the cobalt spins in the sample. The M-H curve confirms the ferromagnetic nature of the compound in the temperature range 20K to 300K. The saturation magnetization and retentivity are found to be almost constant. The application of magnetic field alongwith low temperature cause ordered spin orientation.Cobalt Selenide is an important transition metal chalcogenide. It has been characterized by x-ray powder diffraction and low temperature magnetic studies in the temperature range 300K to 20K. The XRD study confirms the orthorhombic structure of the compound with lattice parameters a = 6.557±0.02A, b = 3.588±0.02 A and c = 5.200±0.02 A. The study of magnetic susceptibility gives the hints for cooperative interaction between the cobalt spins in the sample. The M-H curve confirms the ferromagnetic nature of the compound in the temperature range 20K to 300K. The saturation magnetization and retentivity are found to be almost constant. The application of magnetic field alongwith low temperature cause ordered spin orientation.

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来源期刊

7TH NATIONAL CONFERENCE ON HIERARCHICALLY STRUCTURED MATERIALS (NCHSM-2019)

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