An x-ray reflectivity study of surface layering in a magnetic fluid

Journal of Physics Condensed Matter

Volumn 10, Issue 21, 1998, Pages 4489-4497

  Takahashi, Isao ^a   Ueda, Kazuya ^a   Tsukahara, Yasunori ^b   Ichimiya, Ayahiko ^b   Harada, Jimpei ^c  

^a KWANSEI GAKUIN UNIVERSITY   (Japan)

^b NAGOYA UNIVERSITY   (Japan)

^c RIGAKU CORPORATION   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000967854     PISSN: 09538984     EISSN: None     Source Type: Journal    
DOI: 10.1088/0953-8984/10/21/006     Document Type: Article

References (16)

1. Als-Nielsen J 1994 Structure and Dynamics of Surfaces II (Berlin: Springer) p 181
2. -3. From the widths of the Bragg reflections of the magnetic fine particles, the average diameter - not including the surfactant layer - is estimated as 109 Å. Their value is in accordance with the range of the diameters of the magnetic particles (50-100 Å) obtained from a scanning electron microscopy (SEM) measurement (private communications from Taiho Industry Incorporated).
3. The reflectivity of silicone oil had been measured so as to check the effects of vibration on this system. A typical reflectivity from a surface with roughness of about ∑ = 4.0 Å was obtained. This value is consistent with the prediction of the capillary-wave theory [14]. Thus, it is concluded that the effect of vibration on the surface of the magnetic fluid is negligible, since the sample (LS-40) is apparently more viscous than silicone oil.
4. Als-Nielsen J and Kjaer K 1989 Phase Transitions a Soft Condensed Matter (New York: Plenum) p 113
5. The authors were inspired by Pedersen's exhaustive study [15] regarding how to evaluate the correlation function.
6. Private communications (from Taiho Industry Incorporated)
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