K
K. Siva Kumar
Researcher at Sri Venkateswara University
Publications - 16
Citations - 307
K. Siva Kumar is an academic researcher from Sri Venkateswara University. The author has contributed to research in topics: Nanoparticle & Wurtzite crystal structure. The author has an hindex of 9, co-authored 16 publications receiving 262 citations. Previous affiliations of K. Siva Kumar include Dankook University & Sungkyunkwan University.
Papers
More filters
Journal ArticleDOI
Influence of Dy dopant on structural and photoluminescence of Dy-doped ZnO nanoparticles
TL;DR: In this paper, X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive Xray spectroscopy (EDS), thermogravimetric analysis (TGA-DTA), Raman Spectroscopy, UV-Vis DRS measurements indicated a blue shift optical band gap with Dy-doping.
Journal ArticleDOI
Effect of sintering temperature on structural and magnetic properties of NiCuZn and MgCuZn ferrites
M. Penchal Reddy,W. Madhuri,M. Venkata Ramana,N. Ramamanohar Reddy,K. V. Siva Kumar,V. R. K. Murthy,K. Siva Kumar,R. Ramakrishna Reddy +7 more
TL;DR: In this paper, low temperature microwave sintered NiCuZn and MgCZn ferrites with compositions Ni0.35Cu0.05Zn0.60Fe2O4 and mg0.6c2o4 were synthesized by conventional mixed oxide method, and the scanning electron micrographs of both the ferrite samples appear to be very similar.
Journal ArticleDOI
Synthesis and characterization of Cr doped CdS nanoparticles stabilized with polyvinylpyrrolidone
TL;DR: In this paper, undoped and Cr (2 and 4 ) doped CdS nanoparticles were synthesized in aqueous solution by simple chemical co-precipitation method using polyvinylpyrrolidone (PVP) as stabilizer.
Journal ArticleDOI
Ferromagnetic-Dielectric Ni 0.5 Zn 0.5 Fe 1.9 O 4−δ /PbZr 0.52 Ti 0.48 O 3 Particulate Composites: Electric, Magnetic, Mechanical, and Electromagnetic Properties
TL;DR: In this article, a new ferromagnetic-dielectric particulate composites of Ni 0.5Zn 0.52Ti 0.48O 3 (PZT) and PbZr 0.95O 4−δ δ (NZF) were prepared by conventional ceramic method, and detailed studies on the dielectric properties were done confirming that the magnetoelectric interaction between the constituent phases may result in various anomalies in the composites.
Journal ArticleDOI
Annealing effect on structural and electrical properties of thermally evaporated Cd1−xMnxS nanocrystalline films
D. Sreekantha Reddy,K. Narasimha Rao,K. R. Gunasekhar,N. Koteeswara Reddy,K. Siva Kumar,P. Sreedhara Reddy +5 more
TL;DR: In this paper, thin films of Cd1−xMnxS (0,≤−xmnsxS) were deposited on glass substrates by thermal evaporation and were characterized for composition, structure and microstructure by using energy-dispersive analysis for X-rays, X-ray diffraction, scanning electron microscopy and atomic force microscopy.