Direct synthesis of large size ferromagnetic SmCo5 nanoparticles by a gas-phase condensation method

Shihai He; Ying Jing; Jian Ping Wang

doi:10.1063/1.4798475

Direct synthesis of large size ferromagnetic SmCo₅ nanoparticles by a gas-phase condensation method

Shihai He, Ying Jing, Jian Ping Wang

Electrical and Computer Engineering

Research output: Contribution to journal › Article › peer-review

17 Scopus citations

Abstract

Ferromagnetic SmCo₅ nanoparticles with large size have been directly synthesized by a magnetron-sputtering-based gas-phase condensation method. Based on this method, we studied the effect of thermodynamic environment for the growth of SmCo₅ nanoparticles. It was found that the well-crystallized SmCo₅ nanoparticle tends to form a hexagonal disk shape with its easy axis perpendicular to the disk plane. More importantly, under the condition of high sputtering current, well-crystallized nanoparticles were found to be formed through a three-stage growth process: aggregation, coalescence, and second crystallization.

Original language	English (US)
Article number	134310
Journal	Journal of Applied Physics
Volume	113
Issue number	13
DOIs	https://doi.org/10.1063/1.4798475
State	Published - Apr 7 2013

Bibliographical note

Funding Information:
This work was partially supported by Seagate Technology, National Science Foundation Minnesota MRSEC Program Facility under award number DMR-0819885, NSF Nano Fabrication Center at the University of Minnesota, and the Characterization Facility at University of Minnesota which received partial support from NSF through the NNIN program.

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abstract = "Ferromagnetic SmCo5 nanoparticles with large size have been directly synthesized by a magnetron-sputtering-based gas-phase condensation method. Based on this method, we studied the effect of thermodynamic environment for the growth of SmCo5 nanoparticles. It was found that the well-crystallized SmCo5 nanoparticle tends to form a hexagonal disk shape with its easy axis perpendicular to the disk plane. More importantly, under the condition of high sputtering current, well-crystallized nanoparticles were found to be formed through a three-stage growth process: aggregation, coalescence, and second crystallization.",

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