Microstructural and optoelectronic properties of diluted magnetic semiconducting Cd1−xFexS nanocrystalline films

El-Hagary, M.; Shaaban, E.R.; Emam-Ismail, M.; Al-Thoyaib, S. S.

doi:10.1016/j.jallcom.2011.12.160

Cited by 33 publications

(12 citation statements)

References 19 publications

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“…Other parameters and conditions of the film deposition were taken similar to those used in our previous investigation of the optical properties of Fe doped CdS. 13 Crystal structure of as-deposited films was studied by x-ray powder diffraction (XRD) using Shimadzu Diffractometer XRD 6000, Japan, with Cu-Ka 1 radiation (k ¼ 1.54056 Å ). Note, Cu-Ka 2 radiation was stripped.…”

Section: Methodsmentioning

confidence: 99%

Magnetic behaviour of Fe-doped CdS diluted magnetic semiconducting nanocrystalline thin films

El-Hagary

Soltan

2012

Journal of Applied Physics

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Electrically induced enormous magnetic anisotropy in Terfenol-D/lead zinc niobate-lead titanate multiferroic heterostructures J. Appl. Phys. 112, 063917 (2012) d0 ferromagnetism in undoped n and p-type In2O3 films Appl. Phys. Lett. 101, 132417 (2012) Microstructural and ferromagnetic resonance properties of epitaxial nickel ferrite films grown by chemical vapor deposition Appl. Phys. Lett. 101, 132409 (2012) Evidences for direct magnetic patterning via diffusive transformations using femtosecond laser interferometryWe have investigated the magnetic properties of Fe doped Cd 1Àx Fe x S diluted magnetic semiconducting nanocrystalline thin films for different doping concentrations (0.05 x 0.2) synthesized by electron beam evaporation technique. X-ray diffraction patterns confirm the existence of single phase nature in all the Fe doped Cd 1Àx Fe x S samples with hexagonal wurtzite type structure with a strong (002) preferred orientation. Evidence of nanocrystalline nature of the films was observed from the investigation of surface morphology using scanning electron microscopy and atomic force microscopy. Magnetic domains were observed by using magnetic force microscopy at room temperature indicating the existence of ferromagnetism over the film surface. The temperature and field dependent magnetization measurements by using superconducting quantum interference device showed ferromagnetic behavior between room temperature and low temperature (5 K) with a T c at or above room temperature for the nanostructure samples with 0.1 x 0.2. The saturation magnetization for Cd 1Àx Fe x S system is found to increase with the dopant concentration (x). The exchange interaction between local spin polarized electrons (Fe 3þ ions) and conductive electrons according to Ruderman-Kittel-Kasuya-Yosida mechanism, rather than from the Fe oxide impurities, is proposed to be the possible mechanism for ferromagnetism. These results show that the Fe-doped CdS nanocrystalline films can be employed in the fabrication of the nanoscale magnetic device.

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Section: Methodsmentioning

confidence: 99%

Magnetic behaviour of Fe-doped CdS diluted magnetic semiconducting nanocrystalline thin films

El-Hagary

Soltan

2012

Journal of Applied Physics

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“…However, the mechanism behind the observed ferromagnetism has appeared to be somewhat controversial because magnetization measurements alone cannot differentiate unambiguously between genuine ferromagnetic semiconductors and semiconductors containing clusters of magnetic dopants. During the past few years, DMS doped with Mn 2+ ions have been extensively studied, especially their magnetic and semiconducting properties [9][10][11][12].…”

Section: Introductionmentioning

confidence: 99%

Spectroscopic ellipsometry and magneto-transport investigations of Mn-doped ZnO nanocrystalline films deposited by a non-vacuum sol–gel spin-coating method

Shaaban

El-Hagary

Emam-Ismail

et al. 2013

Materials Science and Engineering: B

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“…Further they reported that RE 3+ doped CdS nanocrystals show complete broadband absorption at well below their band edge to UV region. [9][10][11][12][13]. The methods stated above are very much sophisticated and highly complicated in procedure.…”

Section: Introductionmentioning

confidence: 99%

Structural, optical and magnetic studies on non-aqueous synthesized CdS:Mn nanomaterials

Elango¹,

Gopalakrishnan²,

Vairam³

et al. 2012

Journal of Alloys and Compounds

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Microstructural and optoelectronic properties of diluted magnetic semiconducting Cd1−xFexS nanocrystalline films

Cited by 33 publications

References 19 publications

Magnetic behaviour of Fe-doped CdS diluted magnetic semiconducting nanocrystalline thin films

Magnetic behaviour of Fe-doped CdS diluted magnetic semiconducting nanocrystalline thin films

Spectroscopic ellipsometry and magneto-transport investigations of Mn-doped ZnO nanocrystalline films deposited by a non-vacuum sol–gel spin-coating method

Structural, optical and magnetic studies on non-aqueous synthesized CdS:Mn nanomaterials

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