Ultrathin manganite films grown by pulsed-plasma deposition

Authors :: Bergenti, I.
Riminucci, A.
Arisi, E.
Hueso, L.E.
Cavallini, M.
Solzi, M.
Dediu, V.
Source :: Journal of Magnetism & Magnetic Materials. Mar2007 Part 3, Vol. 310 Issue 2p3, pe780-e782. 0p.
Publication Year :: 2007
Abstract: Abstract: Ultrathin ferromagnetic films of La0.7Sr0.3MnO3 were deposited by electron-beam ablation on standard SrTiO3(100) and NdGaO3(110) substrates. Even 4nm films are metallic and develop spontaneous magnetization at room temperature: similar hysteresis cycles were measured by magneto optical Kerr effect (MOKE) in the longitudinal configuaration and by SQUID magnetometry. To the best of our knowledge the 4nm thickness corresponds so far to the thinnest manganite film showing room-temperature ferromagnetism. [Copyright &y& Elsevier]