Room Temperature Ferromagnetism in Cr Doped ZnSe Powders Prepared by Solid State Reaction

Mallikarjana, P.; Sivasankar, J.; Begam, M. Rigana; Rao, N. Madhusudhana; Kaleemulla, S.; Subrahmanyam, J. V.

doi:10.21272/jnep.8(4(2)).04077

Cited by 3 publications

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“…All the data were obtained after the removal of the diamagnetic contribution from the glass substrates. The magnetization curve of pure ZnSe ( x = 0), shows a diamagnetic‐like behavior, similar to previous studies . With a negative magnetic susceptibility .…”

Section: Resultssupporting

confidence: 89%

Dilute magnetic semiconductor of ZnCoSe thin films: Structural, optical, and magnetic characteristics

et al. 2019

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A series of Zn 1−x Co x Se (x = 0, 0.025, 0.050, 0.075, and 0.100) films using were evaporated (thickness of 1 μm) using electron beam gun. The effect of Co doping on the structural, optical, and magnetic properties has been investigated. X-ray diffraction studies confirm formation of zinc blend structure for all Zn 1−x Co x Se films. The crystallite size increases and the lattice strain decreases with the increase in Co content. The elemental constituents were characterized by energy dispersive X-ray. Optical studies showed an increase in refractive index and a decrease in energy gap with the increase in the cobalt doping. The dispersion of the refractive index has been analyzed in terms of the Wemple-DiDomenico single oscillator model. The oscillator parameters including the single oscillator energy (E o ), the dispersion energy (E d ), and the static refractive index (n 0 ) were estimated. Magnetization measurements via vibrating sample magnetometer showed a hysteresis loop and confirmed room-temperature ferromagnetism in Co-doped ZnSe films. K E Y W O R D Smagnetization, optical constants, oscillator parameters, zinc blend structure, Zn 1−x Co x Se thin films

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Section: Resultssupporting

confidence: 89%