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ruthenium
(redirected from Ruthenate)

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ruthenium

Hard, brittle, silver-white, metallic element, atomic number 44, relative atomic mass 101.07. It is one of the so-called platinum group of metals; it occurs in platinum ores as a free metal and in the natural alloy osmiridium. It is used as a hardener in alloys and as a catalyst; its compounds are used as colouring agents in glass and ceramics.

It was discovered by J A Sniadecki in Vilno, Poland, in 1808, and then rediscovered in 1827 by G W Osann and named after its place of discovery, the Ural Mountains in Ruthenia (now part of Ukraine). Pure ruthenium was isolated in 1845 by K K Klaus.
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Other types of systems that have been investigated with magnetic diffraction include heavy fermion systems (8-13), ruthenates (14-15) and cobalates (16-17), amorphous (18) and nanocrystalline (19-21) systems, frustrated magnets (22-24), molecular magnets, (25-26) and colossal magnetoresistive oxides (27-33).
Magnetic structure determinations at NBS/NIST by Erwin, R.W. / Journal of Research of the National Institute of Standards and Technology
 
 
 
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