Ultrathin ferromagnetic films of La0.7Sr0.3MnO3 were deposited by electron-beam ablation on standard SrTiO3(1 0 0) and NdGaO3(1 1 0) substrates. Even 4 nm 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 4 nm thickness corresponds so far to the thinnest manganite film showing room-temperature ferromagnetism.
Ultrathin manganite films grown by pulsed-plasma deposition / Bergenti, I; Riminucci, A; Arisi, E; Hueso, L. E.; Cavallini, M; Solzi, Massimo; Dediu, V.. - In: JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS. - ISSN 0304-8853. - 310:(2007), pp. e780-e782. [10.1016/j.jmmm.2006.10.751]
Ultrathin manganite films grown by pulsed-plasma deposition
SOLZI, Massimo;
2007-01-01
Abstract
Ultrathin ferromagnetic films of La0.7Sr0.3MnO3 were deposited by electron-beam ablation on standard SrTiO3(1 0 0) and NdGaO3(1 1 0) substrates. Even 4 nm 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 4 nm thickness corresponds so far to the thinnest manganite film showing room-temperature ferromagnetism.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
