Cr-diffused cadmium telluride (CdTe) thin films with different Cr content were prepared using electron beam evaporation method at a substrate temperature of 373 K followed by annealing at 573 K. The structures, composition, chemical and magnetic properties of the prepared films were studied using appropriate techniques. The X-ray diffraction spectra showed a predominant (1 1 1) reflection corresponding to the zinc blende structure of CdTe. Increase of lattice parameter with increase in Cr content has been observed. The cross-sectional HRSEM images displayed a columnar grain growth in the films. EDAX data exposed the presence of Cr, Cd and Te with near stoichiometry. The Raman spectra revealed emission peaks corresponding to A1, TO and LO modes of CdTe showing gradual shift in peak position and decreased intensity confirming the incorporation of Cr into CdTe host lattice. M–H plots displayed a clear well-defined room temperature ferromagnetic hysteresis loop with increase in Cr content. © 2014, Springer-Verlag Berlin Heidelberg.

Shaik Kaleemulla

Department of Physics

School of Advanced Sciences

Vellore Campus

Krishnamoorthi C

Rigana Begam M

Madhusudhana Rao N

Sai Krishna N

Kuppan M.

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

Applied Physics A

Tin doped ZnS powders (Zn1−xSnxS, x = 0.00, 0.02, 0.05&amp;0.08) were synthesized by a simple Solid state reaction and were characterized by Powder X-ray diffractometer (XRD), UV–Vis–NIR diffuse reflectance spectrophotometer, fluorescence spectrophotometer, scanning electron microscope (SEM) and vibrating sample magnetometer (VSM). The XRD studies revealed that no change in crystal structure was observed by the substitution of Sn into ZnS lattice. The crystallite size was calculated by Scherrer's formula and found that the crystallize size of Sn doped ZnS powders were in the range of 35–45 nm. From the diffused reflectance spectra, the band gap values of Zn1−xSnxS powders were estimated, and they were found to be in the range of 3.53–3.58 eV. The pure ZnS particles showed higher optical absorption in visible region than that of Sn doped ZnS nano particles. The Photoluminescence (PL) spectra of Zn1−xSnxS powders were recorded in the range of 400–700 nm with an excitation wavelength of 360 nm. The Zn1−xSnxS powders exhibited ferromagnetism at low temperature (100 K) and super paramagnetism at room temperature (300 K). The strength of magnetization increased with increase of Sn doping concentration from 0.015 emu/g to 0.18 emu/g, when x increased from 0.00–0.05. © 2017 Elsevier B.V.

Physica B: Condensed Matter

Structural, optical and magnetic properties of Sn doped ZnS nano powders prepared by solid state reaction

Cd1-xCrxTe diluted magnetic semiconductor crystals were grown by vapor phase growth technique in the composition range of 0≤x≤0.05 and the effect of Cr doping on structural, morphological, optical and magnetic properties have been explored. X-ray diffraction analysis confirmed that all the grown crystals were zinc blende in structure without having any phase transition up to a Cr doping level of x=0.05. The lattice parameter decreased with increase in Cr doping level. Optical studies indicated that the optical band gap of the crystals decreased with the increase of Cr doping level. Magnetic properties were studied using vibrating sample magnetometer at room temperature and room temperature ferromagnetism was observed in all the Cr doped CdTe crystals. © 2013 Elsevier Ltd. All rights reserved.

Materials Science in Semiconductor Processing

Room temperature ferromagnetism in Cd1−xCrxTe diluted magnetic semiconductor crystals

Solid State Communications

Ab-initio study of structural, electronic and magnetic properties of CdTe doped transition metal Co

ISRN Condensed Matter Physics

Thickness-Dependent Physical Properties of Coevaporated Cu4SnS4 Films

Thin Solid Films

Structural, optical and magnetic properties of Zn1−xMnxO micro-rod arrays synthesized by spray pyrolysis method

Chemical Physics Letters

Structural, optical and magnetic properties of Ni-doped ZnO micro-rods grown by the spray pyrolysis method

Structural and Magnetic properties of Cr-diffused CdTe nanocrystalline thin films deposited by electron beam evaporation

Journal	Data powered by TypesetApplied Physics A
Publisher	Data powered by TypesetSpringer Science and Business Media LLC
ISSN	0947-8396
Open Access	0