Low-Temperature Magnetic Properties of Nanocomposites Containing Superparamagnetic Fe3C Particles

被引：2

作者：

David, B. ^{[1
]}

Schneeweiss, O. ^{[1
]}

Santava, E. ^{[2
]}

Morjan, I. ^{[3
]}

机构：

[1] AS CR, Inst Phys Mat, CZ-61662 Brno, Czech Republic

[2] AS CR, Inst Phys, CZ-18221 Prague 8, Czech Republic

[3] Natl Inst Lasers Plasma & Radiat Phys, Bucharest 077125, Romania

来源：

ACTA PHYSICA POLONICA A | 2010年 / 118卷 / 05期

关键词：

ANNEALING BEHAVIOR; PYROLYSIS; NANOPOWDERS;

D O I：

10.12693/APhysPolA.118.766

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Two nanopowders containing superparamagnetic Fe3C particles, superparamagnetic Fe3O4/gamma-Fe2O3 particles and carbon black phase were synthesised by the method of laser-induced homogeneous pyrolysis of gaseous precursors Both were characterised by X-ray diffraction, Mossbauer spectrometry and standard magnetic measurements The mean crystallite size of Fe3C was 3 nm for the first sample and 10 nm for the second sample Mossbauer spectra measured at 27 K and zero-field cooled/field cooled curves measured down to 4 K are reported

引用

页码：766 / 767

页数：2

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