title: Gadolinium doped europium sulfide.
abstract: We have prepared gadolinium doped europium sulfides, Eu(1-x)Gd(x)S for a doping range of 0 ≤ x ≤ 0.1 by thermal decomposition of the precursors Eu(S(2)CNEt(2))(3)Phen/Gd(S(2)CNEt(2))(3)Phen with respective ratios. Electron doping provides indirect evidence for the magnetic coupling through carrier electrons in magnetic semiconductors. Based on the magnetic properties, we determined that the paramagnetic Curie temperature, Θp, varies with doping level, in a similar way to Eu(1-x)Gd(x)O exhibiting a significant increase at low doping levels. All materials have been characterized by X-ray powder diffraction, magnetic measurements, ICP-MS, and TEM.
authors.affiliation: Department of Chemistry, Box 571227, Georgetown University, Washington DC 20057, USA.
authors.forename: Srotoswini
authors.initials: S
authors.lastname: Kar
authors.forename: William L
authors.initials: WL
authors.lastname: Boncher
authors.forename: Daniel
authors.initials: D
authors.lastname: Olszewski
authors.forename: Norman
authors.initials: N
authors.lastname: Dollahon
authors.forename: Richard
authors.initials: R
authors.lastname: Ash
authors.forename: Sarah L
authors.initials: SL
authors.lastname: Stoll
mesh_terms: D005063:Europium / Q000737:chemistry*; D005682:Gadolinium / Q000737:chemistry*; D013058:Mass Spectrometry; D046529:Microscopy, Electron, Transmission; D014961:X-Ray Diffraction
chemical_list: D005063:Europium; D005682:Gadolinium