Synthesis and Characterization of FeCo Nanowires with High Coercivity

Journal Article · Thu Jan 22 00:00:00 EST 2015 · Nanotechnology (Print)

DOI:https://doi.org/10.1088/0957-4484/26/7/075601· OSTI ID:1225139

Gandha, Kinjal ^[1]; Tsai, Poching ^[1]; Chaubey, Girija S. ^[1]; Poudyal, Narayan ^[1]; Elkins, Kevin ^[1]; Cui, Jun ^[2]; Liu, J. Ping ^[1]

---

1. Univ. of Texas, Arlington, TX (United States)
2. Pacific Northwest National Lab. (PNNL), Richland, WA (United States)

Ferromagnetic FeCo nanocrystals with high coercivity have been synthesized using a reductive decomposition method. The sizes and shapes of the nanocrystals were found to be dependent on reaction parameters such as the surfactant ratio, the precursor concentration and the heating rate. Synthesized nanocrystals have a body-centered cubic crystal structure for both particles and nanowires and the (110) crystalline direction is along the long axis of the nanowires. The coercivity and magnetization of the FeCo nanocrystals are found to be dependent on morphology. Nanowires of Fe₆₀Co₄₀ with saturation magnetization of 92 emu g^-1 and coercive force of 1.2 kOe have been obtained in this study.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 1225139
• Report Number(s): PNNL-SA-110415
• Journal Information: Nanotechnology (Print), Vol. 26, Issue 7; ISSN 0957-4484
• Publisher: IOP Publishing
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
magnetic nanowires
FeCo alloy
high coercivity
chemical synthesis
nanostructured materials
FeCo nanowires
single crystal