Gadolinium doped europium sulfide.
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.
Kar
Srotoswini
S
Department of Chemistry, Box 571227, Georgetown University, Washington DC 20057, USA.
Boncher
William L
WL
Olszewski
Daniel
D
Dollahon
Norman
N
Ash
Richard
R
Stoll
Sarah L
SL
D005063:Europium / Q000737:chemistry*; D005682:Gadolinium / Q000737:chemistry*; D013058:Mass Spectrometry; D046529:Microscopy, Electron, Transmission; D014961:X-Ray Diffraction
D005063:Europium; D005682:Gadolinium