Anomalous magnetic field effects during pulsed injection metal-organic chemical vapor deposition of magnetite films

作者：Zukova Anna^*; Teiserskis Arunas; Gun'ko Y K; Sanchez Ana M; van Dijken Sebastiaan

来源：Applied Physics Letters, 2010, 96(17): 172502.

DOI：10.1063/1.3418622

• iron compounds
• magnetic field effects
• magnetic thin films
• MOCVD
• remanence
• surface morphology
• surface texture

We report on large external magnetic field effects during pulsed injection metal-organic chemical vapor deposition of magnetite films on MgO(001). The application of a 1 T field during the growth process significantly increases the saturation magnetization of magnetite by 150%-220% at a deposition temperature of 550 and 600 degrees C, while the enhancement of the remanent magnetization is even larger. This anomalous magnetic field effect does not drastically alter the crystalline texture, surface morphology, and film thickness of magnetite, but is explained by a suppression of antiphase-boundary formation during film growth.

• 出版日期2010-4-26