Low temperature electron paramagnetic resonance anomalies in Fe-based nanoparticles

被引：50
作者：
Koksharov, YA
Gubin, SP
Kosobudsky, ID
Beltran, M
Khodorkovsky, Y
Tishin, AM
机构：
[1] Beltran Inc, Brooklyn, NY 11210 USA
[2] Moscow MV Lomonosov State Univ, Fac Phys, Moscow, Russia
[3] NS Kurnakov Gen & Inorgan Chem Inst, Moscow 117907, Russia
来源：
JOURNAL OF APPLIED PHYSICS | 2000年 / 88卷 / 03期
关键词：
D O I：
10.1063/1.373879
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
A study of the electron paramagnetic resonance of Fe-based nanoparticles embedded in polyethylene matrix was performed as a function of temperature ranging from 3.5 to 500 K. Nanoparticles with a narrow size distribution were prepared by the high-velocity thermodestruction of iron-containing compounds. A temperature-driven transition from superparamagnetic to ferromagnetic resonance was observed for samples with different Fe content. The unusual behavior of the spectra at about 25 K is considered evidence of a spin-glass state in iron oxide nanoparticles. (C) 2000 American Institute of Physics. [S0021-8979(00)01213-5].
引用
收藏
页码：1587 / 1592
页数：6
相关论文
共 39 条
  • [1] SUPERPARAMAGNETISM AND EXCHANGE ANISOTROPY IN MICROPARTICLES OF MAGNETITE EMBEDDED IN AN INERT CARBONACEOUS MATRIX
    AHARONI, SM
    LITT, MH
    [J]. JOURNAL OF APPLIED PHYSICS, 1971, 42 (01) : 352 - &
  • [2] FERROMAGNETIC RESONANCE ABSORPTION IN COLLOIDAL SUSPENSIONS
    BAGGULEY, DMS
    [J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1955, 228 (1175): : 549 - 567
  • [3] Relaxometry, magnetometry, and EPR evidence for three magnetic phases in the MR contrast agent MION-46L
    Bulte, JWM
    Brooks, RA
    Moskowitz, BM
    Bryant, LH
    Frank, JA
    [J]. JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 1999, 194 (1-3) : 217 - 223
  • [4] MEASUREMENTS OF PARTICLE-SIZE DISTRIBUTION PARAMETERS IN FERROFLUIDS
    CHANTRELL, RW
    POPPLEWELL, J
    CHARLES, SW
    [J]. IEEE TRANSACTIONS ON MAGNETICS, 1978, 14 (05) : 975 - 977
  • [5] Chien C.L., 1991, J APPL PHYS, V69, P5267, DOI [10.1063/1.348946, DOI 10.1063/1.348946, 10.1063/1.348946.]
  • [6] ANISOTROPY-FIELD OF SMALL MAGNETIC PARTICLES AS MEASURED BY RESONANCE
    DEBIASI, RS
    DEVEZAS, TC
    [J]. JOURNAL OF APPLIED PHYSICS, 1978, 49 (04) : 2466 - 2469
  • [7] Evidence of spin disorder at the surface-core interface of oxygen passivated Fe nanoparticles
    Del Bianco, L
    Hernando, A
    Multigner, M
    Prados, C
    Sanchez-Lopez, JC
    Fernandez, A
    Conde, CF
    Conde, A
    [J]. JOURNAL OF APPLIED PHYSICS, 1998, 84 (04) : 2189 - 2192
  • [8] Dormann J.L., 1992, Magnetic properties of fine particles
  • [9] Thermal variation of the relaxation time of the magnetic moment of gamma-Fe2O3 nanoparticles with interparticle interactions of various strengths
    Dormann, JL
    DOrazio, F
    Lucari, F
    Tronc, E
    Prene, P
    Jolivet, JP
    Fiorani, D
    Cherkaoui, R
    Nogues, M
    [J]. PHYSICAL REVIEW B, 1996, 53 (21) : 14291 - 14297
  • [10] Dormann JL, 1997, ADV CHEM PHYS, V98, P283, DOI 10.1002/9780470141571.ch4
1234