Artículos de revistas
Giant effective g-factor in Pb(x)Eu(1-x)Te epitaxial films
Registro en:
Applied Physics Letters. Amer Inst Physics, v. 93, n. 3, 2008.
0003-6951
WOS:000257968700020
10.1063/1.2961018
Autor
Heredia, E
Rappl, PHD
Motisuke, P
Gazoto, AL
Iikawa, F
Brasil, MJSP
Institución
Resumen
We investigated Pb(x)Eu(1-x)Te films with x <= 0.2 by magneto-optical measurements. For x similar to 0.01, the optical emission is similar to high quality EuTe films with two narrow lines attributed to excitonic recombinations associated with magnetic polarons. For increasing x, the emission becomes dominated by a broader lower energy band, which is very efficient as compared to the binary emission. The magneto-optical properties of the ternary films show various similarities with EuTe results, such as quenchings at similar temperatures and magnetic fields. Most remarkably, they also present a giant effective g-factor that makes this material a strong candidate for spintronic applications. (C) 2008 American Institute of Physics. 93 3