Surface oxidation of cobalt nanoparticles studied by Mossbauer spectroscopy

被引：17

作者：

Bodker, F

Morup, S

Charles, SW

Linderoth, S

机构：

[1] Tech Univ Denmark, Dept Phys, DK-2800 Lyngby, Denmark

[2] Univ Coll N Wales, Dept Chem, Bangor LL57 2UW, Gwynedd, Wales

[3] Riso Natl Lab, Mat Res Dept, DK-4000 Roskilde, Denmark

来源：

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS | 1999年 / 196卷

关键词：

particles-ultrafine; Mossbauer emission spectroscopy; surface oxidation;

D O I：

10.1016/S0304-8853(98)00644-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The surface oxide formed on cobalt nanoparticles has been studied by Mossbauer emission spectroscopy. Exposure of the cobalt particles to oxygen at room temperature was found to result in the formation of a relatively well-ordered surface oxide with Mossbauer parameters similar to those of CoO. (C) 1999 Elsevier Science B.V. All rights reserved.

引用

页码：18 / 19

页数：2

共 10 条

[1] Situ cell for Mossbauer spectroscopy between 5 and 800 K in applied magnetic fields
Bodker, F
Morup, S
[J]. NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1996, 108 (04) : 413 - 416
[2] SURFACE EFFECTS IN METALLIC IRON NANOPARTICLES
BODKER, F
MORUP, S
LINDEROTH, S
[J]. PHYSICAL REVIEW LETTERS, 1994, 72 (02) : 282 - 285
[3] Effect of exchange anisotropy on the hysteresis behavior of Co particles
Gangopadhyay, S.
Hadjipanayis, G.C.
Sorensen, C.M.
Klabunde, K.J.
[J]. Nanostructured Materials, 1992, 1 (06):
[4] THE INFLUENCE OF THE SEMICONDUCTOR PROPERTIES ON THE MOSSBAUER EMISSION-SPECTRA OF CO-57 COBALT OXIDE
HARAMI, T
LOOCK, J
HUENGES, E
FONTCUBERTA, J
OBRADORS, X
TEJADA, J
PARAK, F
[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1984, 45 (02) : 181 - 190
[5] MOSSBAUER STUDIES OF C03O4 - BULK MATERIAL AND ULTRAFINE PARTICLES
KUNDIG, W
KOBELT, M
APPEL, H
CONSTABARIS, G
LINDQUIST, RH
[J]. JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1969, 30 (04) : 819 - +
[6] OXIDATION OF NANOMETER-SIZED IRON PARTICLES
LINDEROTH, S
MORUP, S
BENTZON, MD
[J]. JOURNAL OF MATERIALS SCIENCE, 1995, 30 (12) : 3142 - 3148
[7] EVIDENCE OF 2 FORMS OF COBALTOUS OXIDE
OK, HN
MULLEN, JG
[J]. PHYSICAL REVIEW, 1968, 168 (02): : 550 - &
[8] SPIN-GLASS BEHAVIOR OF SPINEL IRON-OXIDE PARTICLES ON IRON METAL-PARTICLE RECORDING MEDIA
PARKER, FT
SPADA, FE
COX, TJ
BERKOWITZ, AE
[J]. JOURNAL OF APPLIED PHYSICS, 1995, 77 (11) : 5853 - 5864
[9] REINTERPRETATION OF DATA ON MULTIPLE CHARGE STATES OF FE IN COO
SCHROEER, D
TRIFTSHAUSER, W
[J]. PHYSICAL REVIEW LETTERS, 1968, 20 (22) : 1242 - +
[10] HYPERFINE STRUCTURE OF DIVALENT AND TRIVALENT FE57 IN COBALT OXIDE
WERTHEIM, GK
[J]. PHYSICAL REVIEW, 1961, 124 (03): : 764 - &

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