ferromagnetism – TechConnect Briefs

Ferromagnetism and Giant Paramagnetism in Cu@C nanocomposites

Estiphanos M., Sharoyan E., Gyulasaryan H., Manukyan A., Mirzakhanyan A., Bernal O., Kocharian A., California State University Los Angeles, US

Different size copper nanoparticles coated by carbon are synthesized by solid phase pyrolysis of polycrystalline phthalocyanine (CuPc, Pc= C32N8H16). The structural properties of obtained powder products are characterized by XRD and Raman spectroscopy. The morphologies [...]

Manganese Doped Zinc Oxide Nanoparticles (MnxZn1-xO): Synthesis, Magnetic Properties and Applications: Photocatalytic and Chemical Sensing

Chauhan M.S., Chauhan S., Chauhan M.S., Chauhan S., Kumar R., Himachal Pradesh University, Shimla, IN

Manganese doped zinc oxide nanoparticles (NPs), MnxZn1-xO; x = 0.01, 0.02, 0.05, 0.1 and 0.2 have been fabricated by the simple solution process. Well-defined morphologies and well-crystallinity of these nanoparticles have been verified with the [...]

Influence of oxygen vacancies on electronic and magnetic

Srinivas K., Venugopal Reddy P., Osmania University, IN

This original experimental research work foused on Ni doped SnO2 diluted magnetic nanorods with various invetigated results. A careful analysis has been done to understand phase purity, distribution of oxygen vacancacies and surface effects. In [...]

Fabrication and characterization of nano-structured ferromagnetic Ti1-xFexO2 thin films

Apetrei R., Negrila C., Macovei D., Dascaleanu V., Teodorescu C.-M., Luca D., Alexandru Ioan Cuza University, RO

Ti1-xFexO2, 300 nm thin films with x ranging between 0.0 and 0.6, have been fabricated by RF magnetron sputtering. Specimen characterization was done by XPS, AFM, XRD,UV-Vis spectrometry, MOKE, and XANES/EXAFS techniques. The AFM and [...]

Theoretical Investigation CrO2 as a Spin-Polarized Material

Swaim J.D., Mallia G., Harrison N.M., Imperial College London, UK

Spintronics represent a new class of electronic devices, based on their ability to conduct spin-polarized currents. CrO2 has received much attention as a potential spintronic material due to its theoretical 100% spin-polarization. Band structure calculations [...]

Influence of nano size on various properties of Sn1-xCoxO2 nanocrystalline Diluted Magnetic Semiconductors

Srinivas K., Venugopal Reddy P., Osmania University, IN

With a view to understand the influence of nano size on various structural, electronic and magnetic properties of nanostructured Sn1-xCoxO2, systematic investigations have been carried out. After synthesizing the samples by sol-gel route, structural characterization [...]

Low-Temperature Synthesis and Characterization of Fe-Doped ZnO Nanocrystals

Parra-Palomino A., Singhal R., Perales-Perez O., Tomar M.S., University of Puerto Rico, PR

We present here our results on synthesis and characterization of bare and Fe-doped ZnO nanocrystals by a modified sol-gel method, which does not require annealing of the samples. Metal acetate solutions in 2-ethylhexanoic acid were [...]