Abstract
FePtCu nanoparticles with various compositions were synthesized by the simultaneous polyol reduction of Pt(acac)2 and Cu(acac)2 and the thermal decomposition of Fe(CO)5. A transformation from fee structure of the as-made samples to fct structure was observed in some samples after annealing at 400°C for 1 hour. The maximum value of stability factor, KuV, of 1.14 × 10-12 erg (Ku: uniaxial anisotropy energy, V: switching volume) was estimated in Fe36Pt 42Cu22 nanoparticles with an average radius of 5.5 nm. This value is comparable to that of the Fe5Pt45 nanoparticles annealed at 550°C for 30 minute. We evaluated the value of Ku of 1.3 × 107 erg/cm3 using the average volume of the nanoparticles.
| Original language | English |
|---|---|
| Title of host publication | Physica Status Solidi C: Conferences |
| Pages | 3499-3502 |
| Number of pages | 4 |
| Volume | 1 |
| Edition | 12 |
| DOIs | |
| Publication status | Published - 2004 |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Preparation of non coagulated FePtCu nanoparticles with high coercivity. / Kura, H.; Sato, Tetsuya.
Physica Status Solidi C: Conferences. Vol. 1 12. ed. 2004. p. 3499-3502.Research output: Chapter in Book/Report/Conference proceeding › Conference contribution
}
TY - GEN
T1 - Preparation of non coagulated FePtCu nanoparticles with high coercivity
AU - Kura, H.
AU - Sato, Tetsuya
PY - 2004
Y1 - 2004
N2 - FePtCu nanoparticles with various compositions were synthesized by the simultaneous polyol reduction of Pt(acac)2 and Cu(acac)2 and the thermal decomposition of Fe(CO)5. A transformation from fee structure of the as-made samples to fct structure was observed in some samples after annealing at 400°C for 1 hour. The maximum value of stability factor, KuV, of 1.14 × 10-12 erg (Ku: uniaxial anisotropy energy, V: switching volume) was estimated in Fe36Pt 42Cu22 nanoparticles with an average radius of 5.5 nm. This value is comparable to that of the Fe5Pt45 nanoparticles annealed at 550°C for 30 minute. We evaluated the value of Ku of 1.3 × 107 erg/cm3 using the average volume of the nanoparticles.
AB - FePtCu nanoparticles with various compositions were synthesized by the simultaneous polyol reduction of Pt(acac)2 and Cu(acac)2 and the thermal decomposition of Fe(CO)5. A transformation from fee structure of the as-made samples to fct structure was observed in some samples after annealing at 400°C for 1 hour. The maximum value of stability factor, KuV, of 1.14 × 10-12 erg (Ku: uniaxial anisotropy energy, V: switching volume) was estimated in Fe36Pt 42Cu22 nanoparticles with an average radius of 5.5 nm. This value is comparable to that of the Fe5Pt45 nanoparticles annealed at 550°C for 30 minute. We evaluated the value of Ku of 1.3 × 107 erg/cm3 using the average volume of the nanoparticles.
UR - http://www.scopus.com/inward/record.url?scp=12344292740&partnerID=8YFLogxK
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U2 - 10.1002/pssc.200405490
DO - 10.1002/pssc.200405490
M3 - Conference contribution
AN - SCOPUS:12344292740
VL - 1
SP - 3499
EP - 3502
BT - Physica Status Solidi C: Conferences
ER -