Influence of the A cation on the low-temperature antiferromagnetism of ordered antiferroelectric A(2)CoTeO(6) perovskites

• We have investigated the structural and magnetic properties of antiferroelectric A(2)CoTeO(6) perovskites with A = Cd, Ca, Sr, Pb, and Ba. All compounds are antiferromagnetic at low temperatures, with the antiferromagnetic transition temperature slightly decreasing with decreasing ionic size of the A cation. Such a decrease in antiferromagnetic interaction is not observed in A(2)(2+)CoM(6+)O(6) materials with other M6+ cations of similar ionic sizes, suggesting that Te6+ cations affect the electronic and in turn the magnetic structure of the system.

Ämnesord

NATURVETENSKAP  -- Kemi -- Oorganisk kemi (hsv//swe)

NATURAL SCIENCES  -- Chemical Sciences -- Inorganic Chemistry (hsv//eng)

Nyckelord

TECHNOLOGY

TEKNIKVETENSKAP

Inorganic chemistry

Oorganisk kemi

Kemi med inriktning mot oorganisk kemi

Chemistry with specialization in Inorganic Chemistry

Teknisk fysik med inriktning mot fasta tillståndets fysik

Engineering Science with specialization in Solid State Physics

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