Ferromagnetic mechanism of (Co, Cu)-codoped ZnO films with different Co concentrations investigated by X-ray photoelectron spectroscopy

Yuan, Huan; Xu, Ming

doi:10.1016/j.physe.2015.12.028

Cited by 9 publications

(3 citation statements)

References 59 publications

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“…Recently, a number of transition-metal doped semiconductors [for example (Ruf et al 2016). (Yuan, Du, and Xu 2016). (Strelchuk et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Prediction of Favorite Positions of Fluoride Atoms Doped in Strontium Manganite using Atomistic Simulation.

Mohamed¹

2021

JFST

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A set of interatomic potentials has been derived for the determination of the most favorable sites of the oxygen substituted by fluorine atoms in SrMnO3. The calculations were performed using GULP code which implements interatomic potentials calculations within the ionic shell model. Initial investigations were made on SrMnO3 perovskite material. Our results for the parent SrMnO3 are in agreement with experimental data. This substitution is favorable to full Schottky disorder and the fluorine atoms are predicted to occupy sites trans to each other in the octahedron surrounding Mn.

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“…Recently, a number of transition-metal doped semiconductors [for example (Ruf et al 2016). (Yuan, Du, and Xu 2016). (Strelchuk et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Prediction of Favorite Positions of Fluoride Atoms Doped in Strontium Manganite using Atomistic Simulation.

Mohamed¹

2021

JFST

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“…It considered the complex structure of the valence band of ferromagnetic semiconductors with the structure of zinc blende. Right after the publication, the findings prompted a lot of experimental studies of ZnO DMS [17][18][19][20][21][22][23][24][25][26][27]. It has been determined that magnetization increases with the growth of VO.…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Ferromagnetism of Zn1-xMnxOy Thin Films Synthesized by Pulsed Laser Deposition

Kuz’mina

Kuz'min

2020

MSF

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The paper discusses the findings of the study of the structural and magnetic properties of Zn1-xMnxOy thin films (x = 0-0.08), synthesized by pulsed laser deposition under different conditions. It has been discovered that during the doping, thin films remain single-phased and retain wurtzite structure (ZnO wurz), oriented along the direction (001). It has been determined that thin films obtained under the same synthesis conditions have similar crystallite sizes, which is confirmed by the substitution of Mn2+ ions with Zn2+ ions in the Zn O semiconductor matrix. It has been found that annealing of samples in the oxygen atmosphere increases the surface roughness from 1-3 nm to ~ 10 nm; the higher the concentration of manganese in Zn1-xMnxOy films is, the greater the value of Ra. It has been demonstrated that, at room temperature, all Zn1-xMnxOy thin films (x = 0-0.08) exhibit ferromagnetic behavior, which is more pronounced upon the increase in concentration of oxygen vacancies and manganese in the samples. It is assumed that two mechanisms explaining high-temperature ferromagnetism coexist in the films: the first one is determined by ferromagnetic exchange between Mn2+ cations by means of oxygen vacancies, the second one deals with super-exchange interaction between oxygen vacancies.

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“…Ferromagnetic semiconductors are the subject of much interest for use in spintronic devices. Recently, a number of transition-metal doped semiconductors [for example [1][2][3][4][5][6][7][8] and doped mixed oxides [for example 9 -12] have been identified often as thin films. However these materials used metals as dopants.…”

Section: Introductionmentioning

confidence: 99%

Fluorinated perovskite as magnetic spin-polarised semiconductor

Moore

Mohammed

Widatallah

et al. 2019

Solid State Communications

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Much work has been done on cation substitution of manganese perovskites, but less on anion substitution. Recently there have been reports on fluorination of these compounds, generally leading to double perovskite structures. This work explores the effect of fluorine substitution on the magnetic and electrical properties of the perovskite cubic strontium manganite using first principles DFT calculations. Results on fluorine-doped strontium manganite with one or two fluoride ions surrounding each iron are presented. The ground state of Sr 2 Mn 2 O 5 F is found to be a small band gap spin-biased semiconductor. This is the first proposal that a fluorinated manganite could be a ferromagnetic spin-polarised semiconductor. A. perovskites ; D. ferromagnetism ; A. semiconductors ; E. DFT Highlights  Sr 2 Mn 2 O 5 F has been identified as having potential for electronic devices.  This structure is predicted to be a spin-biased ferromagnetic semiconductor.  Properties are varied by anion-doping rather than the more common cation-doping.  Mn is surrounded by a distorted octahedron of five oxide and one fluoride ions.

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Ferromagnetic mechanism of (Co, Cu)-codoped ZnO films with different Co concentrations investigated by X-ray photoelectron spectroscopy

Cited by 9 publications

References 59 publications

Prediction of Favorite Positions of Fluoride Atoms Doped in Strontium Manganite using Atomistic Simulation.

Prediction of Favorite Positions of Fluoride Atoms Doped in Strontium Manganite using Atomistic Simulation.

High-Temperature Ferromagnetism of Zn<sub>1-</sub><i><sub>x</sub></i>Mn<i><sub>x</sub></i>O<i><sub>y </sub></i>Thin Films Synthesized by Pulsed Laser Deposition

Fluorinated perovskite as magnetic spin-polarised semiconductor

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