期刊论文详细信息
Magnetism in nanometer-thick magnetite | |
Article | |
关键词: IRON-OXIDE FILMS; PULSED-LASER DEPOSITION; EPITAXIAL-GROWTH; FE3O4; FE; MAGNETORESISTANCE; NUCLEATION; BEHAVIOR; | |
DOI : 10.1103/PhysRevB.85.020404 | |
来源: SCIE |
【 摘 要 】
The oldest known magnetic material, magnetite, is of current interest for use in spintronics as a thin film. An open question is how thin can magnetite films be and still retain the robust ferrimagnetism required for many applications. We have grown 1-nm-thick magnetite crystals and characterized them in situ by electron and photoelectron microscopies including selected-area x-ray circular dichroism. Well-defined magnetic patterns are observed in individual nanocrystals up to at least 520 K, establishing the retention of ferrimagnetism in magnetite two unit cells thick.
【 授权许可】
Free