Influence of Cr3+ substitution on structural, morphological, optical, and magnetic properties of nickel ferrite thin films

被引:11
作者
Chavan, Apparao R. [1 ]
Shisode, Mahendra, V [1 ]
Undre, Pallavi G. [1 ]
Jadhav, K. M. [1 ]
机构
[1] Dr Babasaheb Ambedkar Marathwada Univ, Dept Phys, Aurangabad 431004, Maharashtra, India
来源
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2019年 / 125卷 / 07期
关键词
SPRAY-PYROLYSIS; ELECTRICAL-PROPERTIES; CATION DISTRIBUTION; PHASE-TRANSITION; ZN; NANOPARTICLES; TEMPERATURE; DEPOSITION; AL3+; NI;
D O I
10.1007/s00339-019-2768-5
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The NiFe2-xCrxO4 (0.0x1.0 in the step of x=0.2) thin films have been synthesized using chemical spray deposition technique. The effects of Cr3+ content on the structural, morphological, optical and magnetic properties of these thin films have been investigated. The X-ray diffraction patterns confirmed single phase cubic spinel structure with space group of Fd-3m. The lattice constant decreases with increases Cr3+ concentration obeying Vegard's law. The functional studied of Cr3+ substitution NiFe2O4 thin films were formed two major transmission bands, high-frequency band ((1)) around at 665cm(-1) is due to intrinsic vibrations of (A) site and the low frequency band ((2)) around 428cm(-1) is due to [B] site, respectively. Surface morphology was investigated in terms of root mean square roughness, average roughness (R-a), surface kurtosis and surface skewness of Ni-Cr ferrite thin films. The energy band gap for allowed direct electronic transition found to be in the range of 2.75-3.02eV with Cr3+ content. According to VSM results show that, the saturation magnetizations of the thin film samples were found to be in the range of 234.12-46.65 emu/cc. The Cr3+ concentration increases with a reduction in hysteresis losses as well as slight reduction in the saturation magnetization.
引用
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页数:9
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