TY - JOUR
T1 - Synthesis of submicron sized Fe20 Ni80 particles and their magnetic properties
AU - Kodama, Daisuke
AU - Shinoda, Kozo
AU - Kasuya, Ryo
AU - Tohji, Kazuyuki
AU - Doi, Masaaki
AU - Balachandran, Jeyadevan
N1 - Funding Information:
This work was supported by Grant-in-Aid for JSPS Fellows (No.20-4151). The EXAFS measurement was performed at the BL14B2 in the SPring-8 with the approval of the Japan Synchrotron Radiation Research Institute (JASRI) (Proposal No. 2009A1928).
PY - 2010/5/1
Y1 - 2010/5/1
N2 - Fe-Ni alloy nanoparticles were synthesized by polyol process using hydrazine as a reduction assist reagent. Particle size, crystallite size, and crystal phases varied with the type of polyol. The saturation magnetizations of the as-synthesized Fe-Ni particles synthesized in ethylene glycol (EG) and 1-heptanol were similar to the bulk and were 73 emu/g and 83 emu/g, respectively. On the other hand, the coercivities of the same were 41 and 123 Oe. The coercivity of the Fe-Ni particles synthesized in EG decreased to 27 Oe after heat treatment. Though the magnetic properties were very similar irrespective of the polyol used in this study, the Mössbauer spectroscopic measurements revealed that Fe-Ni particles with single permalloy phase was synthesized only when EG was used.
AB - Fe-Ni alloy nanoparticles were synthesized by polyol process using hydrazine as a reduction assist reagent. Particle size, crystallite size, and crystal phases varied with the type of polyol. The saturation magnetizations of the as-synthesized Fe-Ni particles synthesized in ethylene glycol (EG) and 1-heptanol were similar to the bulk and were 73 emu/g and 83 emu/g, respectively. On the other hand, the coercivities of the same were 41 and 123 Oe. The coercivity of the Fe-Ni particles synthesized in EG decreased to 27 Oe after heat treatment. Though the magnetic properties were very similar irrespective of the polyol used in this study, the Mössbauer spectroscopic measurements revealed that Fe-Ni particles with single permalloy phase was synthesized only when EG was used.
UR - http://www.scopus.com/inward/record.url?scp=77951691088&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=77951691088&partnerID=8YFLogxK
U2 - 10.1063/1.3334170
DO - 10.1063/1.3334170
M3 - Article
AN - SCOPUS:77951691088
VL - 107
JO - Journal of Applied Physics
JF - Journal of Applied Physics
SN - 0021-8979
IS - 9
M1 - 09A320
ER -