Title :
Magnetooptical study of Mn ions implanted in Ge
Author :
D´Orazio, Franco ; Lucari, Franco ; Passacantando, Maurizio ; Picozzi, Pietro ; Santucci, Sandro ; Verna, Adriano
Author_Institution :
Dipt. di Fisica, L´´Aquila Univ., Italy
fDate :
9/1/2002 12:00:00 AM
Abstract :
The effect of ion-implanted manganese impurities in germanium is investigated by means of Kerr effect rotation. After annealing, a magnetic cycle with a coercive field close to 3000 Oe is observed at about 10 K. The hysteresis disappears just below room temperature. The magnetic analysis, supported by structural characterization, suggests that particles rich in Mn are formed within the Ge matrix during implantation.
Keywords :
Kerr magneto-optical effect; X-ray photoelectron spectra; annealing; coercive force; elemental semiconductors; ferromagnetic materials; germanium; ion implantation; magnetic hysteresis; magnetic particles; manganese; semimagnetic semiconductors; superparamagnetism; 10 K; Ge matrix; Ge:Mn; Kerr effect rotation; Mn rich particles; MnxGe1-x clusters; annealing; coercive field; ferromagnetic properties; germanium; hysteresis; ion-implanted manganese impurities; magnetic analysis; magnetic cycle; magnetic semiconductors; magnetooptical study; room temperature; structural characterization; superparamagnetic character; Annealing; Germanium; Impurities; Kerr effect; Magnetic hysteresis; Magnetic properties; Magnetic semiconductors; Magnetooptic effects; Manganese; Temperature;
Journal_Title :
Magnetics, IEEE Transactions on
DOI :
10.1109/TMAG.2002.802859
