Preparation, structure and magnetic properties of lithium substituted NiO by molten salt method

Du, Fei; Bie, Xiaofei; Bian, Xiaofei; Hu, Fang; Chen, Gang; Wang, Chunzhong; Wei, Yingjin

doi:10.1007/s40242-013-2159-y

Cited by 9 publications

(1 citation statement)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This could possibly due to interaction between antiferromagnetic core and ferromagnetic surface spin in the core-shell structure [67,75]. [28,76,77]. As a result of which ferromagnetic interaction amplified with 1% of Zn doping.…”

Section: Magnetic Propertiesmentioning

confidence: 99%

Structural, optical and magnetic properties of Ni1−xZnxO/Ni nanocomposite

et al. 2019

View full text Add to dashboard Cite

Ni 1−x Zn x O/Ni nanocomposite samples synthesized by wet chemical method were characterized by X-ray powder diffraction, Fourier Transform Infrared (FTIR) spectrometer, UV-Vis spectrometer and Nine Tesla Physical Property Measurement System (PPMS)-based vibrating sample magnetometer (VSM). XRD spectra contained peaks due to NiO and Ni. Rietveld refinement of XRD data indicated the change in lattice parameter is more than twice in NiO than in Ni suggests that Zn goes more favorably into NiO than in Ni. The band gap of NiO in Ni 1−x Zn x O/Ni samples increased from 3.58 to 3.81 eV with increasing x from 0 to 0.07 and thereafter the band gap slightly decreases. NiO/Ni nanocomposites show strong room temperature ferromagnetism. The ferromagnetic interaction further enhanced with 1% of Zn doping into NiO in NiO/Ni nanocomposite. Beyond this doping concentration, the magnetic interaction does not show any systematic variation. The observation of room temperature ferromagnetism in nanocomposite samples is explained by combining the effect of bound magnetic polaron and the magnetization of system with the distribution of magnetic ions as meagerly dispersed in large clusters. Our study indicated that Ni 0.99 Zn 0.01 O/Ni nanocomposite sample could be useful for magnetic recording device application.

show abstract