Characterization of iron oxide nanoparticles by Mossbauer spectroscopy

被引：66

作者：

Kamali-M, Saeed ^{[1
]}

Ericsson, Tore ^{[1
]}

Wappling, Roger ^{[1
]}

机构：

[1] Uppsala Univ, Dept Phys, SE-75121 Uppsala, Sweden

来源：

THIN SOLID FILMS | 2006年 / 515卷 / 02期

关键词：

nanoparticles; iron oxides; Mossbauer spectroscopy; magnetic hyperfine field; centroid shift; superparamagnetism;

D O I：

10.1016/j.tsf.2005.12.180

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Small particles of iron oxides, nominally 7 nm and 13 nm in diameter, have been studied by Fe-57 Mossbauer spectroscopy in the temperature range 4 K to room temperature. The Mossbauer spectra show, at high temperature, relaxational behaviour in agreement with the superparamagnetism, expected. At low temperature the spin motion becomes slower and, finally, blocked. There are also indications that the material is non-stoichiometric. (c) 2005 Elsevier B.V. All rights reserved.

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页码：721 / 723

页数：3

相关论文

共 10 条

[1] Magnetic properties of hematite nanoparticles [J].

Bodker, F ;

Hansen, MF ;

Koch, CB ;

Lefmann, K ;

Morup, S .

PHYSICAL REVIEW B, 2000, 61 (10) :6826-6838

[2] THERMAL FLUCTUATIONS OF A SINGLE-DOMAIN PARTICLE [J].

BROWN, WF .

PHYSICAL REVIEW, 1963, 130 (05) :1677-+

[3] Synthesis of magnetic Fe3O4 particles covered with a modifiable phospholipid coat [J].

De Cuyper, M ;

Müller, P ;

Lueken, H ;

Hodenius, M .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2003, 15 (15) :S1425-S1436

[4] MAGNETOLIPOSOMES - FORMATION AND STRUCTURAL CHARACTERIZATION [J].

DECUYPER, M ;

JONIAU, M .

EUROPEAN BIOPHYSICS JOURNAL WITH BIOPHYSICS LETTERS, 1988, 15 (05) :311-319

[5] Synthesis of magnetoliposomes with monodisperse iron oxide nanocrystal cores for hyperthermia [J].

Gonzales, M ;

Krishnan, KM .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2005, 293 (01) :265-270

[6] Physical limits of hyperthermia using magnetite fine particles [J].

Hergt, R ;

Andra, W ;

d'Ambly, CG ;

Hilger, I ;

Kaiser, WA ;

Richter, U ;

Schmidt, HG .

IEEE TRANSACTIONS ON MAGNETICS, 1998, 34 (05) :3745-3754

[7]

Lagarec K., 1998, RECOIL MOSSBAUER SPE

[8] MAGNETIC HYPERFINE SPLITTING IN MOSSBAUER-SPECTRA OF MICRO-CRYSTALS [J].

MORUP, S .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1983, 37 (01) :39-50

[9] Review of the low-temperature magnetic properties of magnetite from a rock magnetic perspective [J].

Muxworthy, AR ;

McClelland, E .

GEOPHYSICAL JOURNAL INTERNATIONAL, 2000, 140 (01) :101-114

[10]

Neel L., 1949, ANN GEOPHYS, V5, P99, DOI DOI 10.1016/S0009-2509(00)00427-9