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Pattern Selection and the Magnetic Property of Electrodeposits Grown within a Ultrathin FeSO4 Solution Layer
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    Abstract:

    The unique ultrathin electrolyte layer deposition process is helpful for the investigation of the pattern formation and the pattern selection of metal and metal oxides with the micro-nanometer scale. Under different growth driving force, the electrodeposits will present the different patterns. Moreover, the distribution of magnetic domains formed in the magnetic metals, for instance the micro-nanometer Co filaments obtained through the ultrathin electrolyte layer electrodeposition process, will be affected by their geometry such as the thickness and the width remarkbely. In this paper, through the ultrathin FeSO<sub>4</sub> solution layer electrodeposition process, the iron electrodeposits with the filament or the film like morphology grown under the different electrodeposition currents were obtained. Compared with the Fe filaments with nanometer thickness formed under the higher electrodeposition current, the film like electrodeposit formed under the lower electrodeposition current presented the sub-micron thickness. Further, based on the magnetic force microscopy (MFM), we measured the distribution of the stray magnetic field around the electrodeposits with different morphology, which is resulted from the magnetic domains formed in the electrodeposits through the self-assembled process or the magnetization process under applied static magnetic field. Finally, the magnetic property of samples were measured with the alternating gradient magnetometer (AGM), the obtained hysteresis loops presented that the ease axis is located in the plane of the electrodeposits growth, and the saturation magnetization at different directions should be determined by the growth direction, the geometry, and the morphological characteristics of electrodeposits.

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[Yu Guangwei, Liu Hong, Wang Jiyang. Pattern Selection and the Magnetic Property of Electrodeposits Grown within a Ultrathin FeSO4 Solution Layer[J]. Rare Metal Materials and Engineering,2020,49(1):209~215.]
DOI:10.12442/j. issn.1002-185X.20181086

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History
  • Received:October 24,2018
  • Revised:November 21,2018
  • Adopted:December 05,2018
  • Online: February 16,2020
  • Published: