J. Hays

TL;DR: In this article, the structural, optical, and magnetic properties of chemically synthesized pure and Co-doped powders using x-ray diffraction (XRD), diffuse reflectance spectroscopy (DSS) and magnetometry were investigated.

TL;DR: In this article, the development of room-temperature ferromagnetism in chemically synthesized powder samples of semiconductor oxides was reported, suggesting that emerging magnetic properties of these systems are hostSn}{\mathrm{O}}{2}$ suggesting that strong structure-magnetic property relationship.

TL;DR: In this article, the discovery of room-temperature ferromagnetic magnetism in nanoparticles at room temperature was reported, and the coercivity of the nanoparticles was shown to be in the range of 0.3em-0ex.

TL;DR: In this paper, room-temperature ferromagnetism is observed in chemically synthesized powder samples of Sn1−xCoxO2 with x=0.005 and 0.01.

TL;DR: The XPS data collected from Zn(1-x)Co(x)O samples showed a gradual increase in the oxygen concentration, changing the oxygen-deficient undoped ZnO to an excess oxygen state for x = 0.12, indicating that such high Co concentrations and appropriate oxygen stoichiometry may be needed to achieve adequate ferromagnetic exchange coupling between the incorporated Co(2+) ions.