ISSN:
0392-6737
Keywords:
Magnetic properties of monolayers and overlayers
;
X-ray, Mössbauer and other γ-ray spectroscopic analysis methods
;
Mass spectrometry (including, SIMS, multiphoton ionization and resonance ionization mass spectrometry)
;
Conference proceedings
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Summary The composition of differently prepared Langmuir-Blodgett multilayers of ferric arachidate has been investigated by means of absorption Mössbauer spectroscopy and heavy-ion-induced mass spectrometry. We found that the iron concentration in qualitatively good films is 3.5 times higher than the stoichiometric value. Antiferromagnetic ordering in this two-dimensional model substance can be observed when the Fe−Fe distance in the layers is about 0.3 nm or below. The area density of the iron atoms in the planes decreases with decreasingpH values of the subphase which also leads to a disappearance of the long-range magnetic ordering and to a decrease of the Debye temperature of the films which is linearly dependent on the iron concentration in the films.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02458909
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