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  • 1
    Electronic Resource
    Electronic Resource
    Identification of a spin-glass and a cluster-glass by Mössbauer measurements: Fe0.5Mn0.5TiO3 and Fe0.2Mg0.8TiO3 (1996)
    Springer
    Il nuovo cimento della Società Italiana di Fisica 18 (1996), S. 263-268 
    Details
    ISSN: 0392-6737
    Keywords: Spin arrangements in magnetically ordered materials (including neutron and spin-polarized electron studies, synchrotron-source X-ray scattering, etc.) ; Critical-point effects, specific heats short-range order ; Antiferromagnetics ; Conference proceedings
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Notes: Summary Mössbauer measurements have been made on two kinds of spin-glass (SG) systems: one is the magnetically non-diluted mixed compound Fe0.5Mn0.5TiO3 with the SG-freezing temperatureT SG=21.5K, and the other is the diluted one Fe0.2Mg0.8TiO3 withT SG=6K. We have shown that the temperature variation of the Mössbauer spectrum of Fe0.2Mg0.8TiO3 above and around itsT SG is essentially different from that of Fe0.5Mn0.5TiO3: the former is typical of a cluster-glass and the latter of an ordinary spin-glass. The present work has clearly demonstrated that the Mössbauer spectroscopy is the most useful and unique technique to distinguish a cluster-glass from an ordinary spin-glass.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF02458902
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  • 2
    Electronic Resource
    Electronic Resource
    Effect of polymer composition on the production of cationic multihollow polymer particles by the stepwise acid/alkali method (1999)
    Springer
    Colloid & polymer science 277 (1999), S. 589-594 
    Details
    ISSN: 1435-1536
    Keywords: Key words Hollow ; Particle ; Emulsion polymerization ; Morphology ; Swelling
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The effect of the polymer composition on the formation of multihollow structures formed within submicron-sized styrene–butyl acrylate–dimethylaminoethyl methacrylate terpolymer particles by the “acid/alkali method” proposed by the authors was examined. The cationic particles were produced by seeded emulsion terpolymerization with 2,2′-azobis(2-amidinopropane) hydrochloride initiator. The dimethylaminoethyl methacrylate content and the glass-transition temperature of the terpolymer greatly affected the formation of the multihollow structure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/s003960050430
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    Paper (German National Licenses)
    Fulltext
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