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The role of Cr incorporation into the ZnO were probed through investigations into the structural, optical and magnetic properties. Zn1-xCrxO with x = 0, 0.01, 0.03 and 0.05, nanoparticles were prepared by solution combustion method. Powder…

材料科学 · 物理学 2021-11-16 H. S. Lokesha , P. Mohanty , A. R. E. Prinsloo , C. J. Sheppard

Nanoparticles of Cr3+-substituted Ni-Zn ferrites with a general formula Ni0.4Zn0.6-xCrxFe2O4 (x = 0.0 - 0.6) have been synthesized via a facile microwave combustion route. The crystalline phase has been characterized by XRD, TEM, FT-I and…

材料科学 · 物理学 2026-04-21 Abdulaziz Abu El-Fadl , Azza M. Hassan , Mohamed A. Kassem

Zn1-xRxO (R = Li, Mg, Cr, Mn, Fe and Cd) were obtained by using co-precipitation synthesis technique with constant weight percent of 3% from R ions. The phase composition, crystal structure, morphology, Density Functional Theory (DFT), and,…

材料科学 · 物理学 2021-10-26 T. A. Abdel-Baset , M. Abdel-Hafiez

Cr-doped ZnO films were fabricated by a new but feasible method, that is, annealing Cr-Zn layers deposited via DC magnetron sputtering in air. Microstructures of the films were investigated using X-ray diffraction, scanning electron…

材料科学 · 物理学 2025-08-19 Men Guo , Gilad Orr , Paul Ben Ishai , Xia Zhao , Shlomo Glasser

We have studied the electronic structure of Zn$_{0.9}$Fe$_{0.1}$O nano-particles, which have been reported to show ferromagnetism at room temperature, by x-ray photoemission spectroscopy (XPS), resonant photoemission spectroscopy (RPES),…

The modification and tailoring the characteristics of nanostructured materials are of great interest due to controllable and unusual inherent properties in such materials. A simple spray pyrolysis technique is used to prepare pure and…

应用物理 · 物理学 2019-09-24 Mai M. A. Ahmed , Wael Z. Tawfik , M. A. K. Elfayoumi , M. Abdel-Hafiez , S. I. El-Dek

Fe-doped ZnO nanocrystals are successfully synthesized and structurally characterized by using x-ray diffraction and transmission electron microscopy. Magnetization measurements on the same system reveal a ferromagnetic to paramagnetic…

We report the electronic structure studies of well characterized polycrystalline Zn_{1-x}Fe_xO (x = 0.0, 0.01, 0.03, and 0.05) nanorods synthesized by a co-precipitation method through x-ray absorption fine structure (XAFS). X-ray…

材料科学 · 物理学 2011-11-22 Sanjeev Gautam , S. Kumar , P. Thakur , K. H. Chae , Ravi Kumar , C. G. Lee

Undoped and Mn doped ZnO samples with different percentage of Mn content (1 mol%, 2 mol% and 3mol%) were synthesized by a simple solvo-thermal method. We have studied the structural, chemical and optical properties of the samples by using…

材料科学 · 物理学 2007-09-26 K. Rajendran , S. Banerjee , S. Senthilkumaar , T. K. Chini , V. Sengodan

This paper reports the effect of Fe doping on the structure and room temperature ferromagnetism of CeO2 nanoparticles. X-ray diffraction and selective area electron diffraction measurement reflects that Ce1-xFexO2 (x = 0.0 - 0.07)…

材料科学 · 物理学 2011-01-31 Shalendra Kumar , Geun Woo Kim , B. H. Koo , S. K. Sharma , M. Knobel , Chan Gyu Lee

Zn doped Mn ferrites nanoparticles were fabricated by using Co-precipitation. Variation in structure, magnetic and optical properties of MnZn ferrites has been discussed. First of all, samples were synthesized, annealed at different…

材料科学 · 物理学 2020-01-06 S. Rani , S. S. Ali

By studying Fe-doped ZnO pellets and thin films with various x-ray spectroscopic techniques, and complementing this with density functional theory calculations, we find that Fe-doping in bulk ZnO induces isovalent (and isostructural) cation…

Herein, we present a detailed study of the structural, optical, and electrochemical responses of Gd$_2$O$_3$ doped with nickel zinc ferrite nanoparticles. Doping of Ni$_{0.5}$Zn$_{0.5}$Fe$_2$O$_4$ nanoparticles to Gd$_2$O$_3$ powder was…

材料科学 · 物理学 2023-05-09 M. Azeem , Q. Abbas , M. A. Abdelkareem , A. G. Olabi

The structural, optical and magnetic properties of the Zn1-xMnxO (0 < x < 0.05) thin films synthesized by sol-gel technique have been analyzed in the light of modification of the electronic structure and disorder developed in the samples…

材料科学 · 物理学 2015-06-11 R. Karmakar , S. K. Neogi , Aritra Banerjee , S. Bandyopadhyay

In this study, we report the enhancement in field emission (FE) properties of ZnO nanostructure by Ni doping at the base pressure of ~1 x 10-8 mbar, which were grown by the simple wet chemical process. ZnO nanostructure shows single…

Sn$_{0.97-y}$Co$_{0.03}$Ni$_{y}$O$_{2}$ (0 $\leq y \leq$ 0.04) nanocrystals, with average crystallite size in the range of 7.3 nm ($y$=0.00) to 5.6 nm ($y$=0.04), have been synthesized using pH-controlled chemical co-precipitation…

材料科学 · 物理学 2021-09-07 S. Roy , Brijmohan Prajapati , A. Singh , Amish G. Joshi , S. Chatterjee , Anup K. Ghosh

We synthesized and characterized the colloidal suspensions of $FeO \cdot Fe_{(2-x)}Nd_{x}O_{3}$ nanoparticles with $x=0.00, 0.02, 0.04, 0.06 \text{ and }0.1.$ The effect of the $Fe^{3+}$ ion replacement by $Nd^{3+}$ on the crystal structure…

In this work, we report the combined effect of donor (Nd) and acceptor (Li) co-doping at the Zn-site of ZnO ceramics on structural, microstructural and dielectric properties. Combining experimental observations with DFT based theoretical…

材料科学 · 物理学 2020-09-10 Md. Zahidur Rahaman , Hidekazu Tanaka , A. K. M. Akther Hossain

Single-phase Mg-doped ZnFe$_2$O$_4$ nanoparticles with x= 0, 0.3, 0.5, 0.7 have been prepared by the glycol-thermal method without any subsequent calcination. The crystallite size, microstructure and magnetic properties of the prepared…

材料科学 · 物理学 2025-08-20 Kemi Y. Adewale , Itegbeyogene P. Ezekiel

Experimental studies of Zn1-xCoxO as thin films or nanocrystals have found ferromagnetism and Curie temperatures above room temperature and that p- or n-type doping of Zn1-xCoxO can change its magnetic state. Bulk Zn1-xCoxO with a low…

材料科学 · 物理学 2013-05-29 Charles H. Patterson
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