Mossbauer spectroscopy, superparamagnetism and ferrofluids

被引：9
|
作者：
Pfannes, HD [1 ]
Dias, JH [1 ]
Magalhaes-Paniago, R [1 ]
López, JL [1 ]
Paniago, R [1 ]
机构：
[1] Univ Fed Minas Gerais, Dept Fis, Lab Hyperfine Spect & Surface Phys, Belo Horizonte, MG, Brazil
来源：
BRAZILIAN JOURNAL OF PHYSICS | 2001年 / 31卷 / 03期
关键词：
D O I：
10.1590/S0103-97332001000300011
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Some fundamentals of Mossbauer spectroscopy and of fluctuating magnetic hyperfine interactions are reviewed. An expression for calculation of spin-phonon interaction transition probabilities on the ground of a Debye model is given. Basic ideas of superparamagnetism and classical results for low-temperature relaxation rates are presented. A theory of superparamagnetism based on spin-phonon interaction is introduced. It is shown how to calculate from this Mossbauer spectra taking all spin-levels into account. Experimental spectra of ferrofluids are compared with simulated spectra and found in good accordance.
引用
收藏
页码：409 / 417
页数：9
相关论文
共 50 条
  • [31] MOSSBAUER SPECTROSCOPY
    GALLAGHE.PK
    AMERICAN CERAMIC SOCIETY BULLETIN, 1970, 49 (04): : 379 - &
  • [32] Dose measurements "in" Mossbauer spectroscopy and dose measurements "by" Mossbauer spectroscopy
    Pedrazzi, G
    Vaccari, S
    Ghillani, M
    Papotti, E
    MATERIAL RESEARCH IN ATOMIC SCALE BY MOSSBAUER SPECTROSCOPY, 2003, 94 : 347 - 356
  • [33] Raman spectroscopy as a powerful technique in the characterization of ferrofluids
    Rubim, JC
    Sousa, MH
    Silva, JCO
    Tourinho, FA
    BRAZILIAN JOURNAL OF PHYSICS, 2001, 31 (03) : 402 - 408
  • [34] Raman spectroscopy investigation of magnetite nanoparticles in ferrofluids
    Slavov, L.
    Abrashev, M. V.
    Merodiiska, T.
    Gelev, Ch.
    Vandenberghe, R. E.
    Markova-Deneva, I.
    Nedkov, I.
    JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2010, 322 (14) : 1904 - 1911
  • [35] Precision in Mossbauer spectroscopy
    Maltsev, Y
    Mehner, H
    Menzel, M
    Rogozev, B
    HYPERFINE INTERACTIONS, 2002, 139 (1-4): : 679 - 684
  • [36] Mossbauer spectroscopy in catalysis
    Lazar, Karoly
    HYPERFINE INTERACTIONS, 2013, 217 (1-3): : 57 - 65
  • [37] MOSSBAUER-SPECTROSCOPY
    CRANSHAW, TE
    JOURNAL OF PHYSICS E-SCIENTIFIC INSTRUMENTS, 1974, 7 (07): : 497 - 505
  • [38] Methods of simulating superparamagnetic relaxation Mossbauer spectra and attempts of foundation of a microscopic theory of superparamagnetism
    Pfannes, HD
    Filho, JH
    Paniago, R
    Magalhaes-Paniago, R
    HYPERFINE INTERACTIONS, 2003, 148 (1-4): : 243 - 252
  • [39] Multilevel Mossbauer spectroscopy
    Ivojlov, N.G.
    Dulov, E.N.
    Khripunov, D.M.
    Chistyakov, V.A.
    Izvestiya Akademii Nauk. Ser. Fizicheskaya, 2001, 65 (07): : 1068 - 1073
  • [40] MOSSBAUER SCATTERING SPECTROSCOPY
    MOROSOV, VV
    HYPERFINE INTERACTIONS, 1990, 52 (04): : 351 - 365
12345