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

Article

关键词: NEUTRON-DIFFRACTION;    MAGNETIC-STRUCTURE;    ROOM-TEMPERATURE;    MAGNETORESISTANCE;    CRYSTAL;    CO;    POLARIZATION;    INSIGHT;    SERIES;   

DOI  :  10.1103/PhysRevB.83.174420

来源: SCIE

【 摘 要 】

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.

【 授权许可】

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