Title of article
Cluster-glass state and the effect of A-site magnetism in electron-doped manganites
Author/Authors
Ling، نويسنده , , Langsheng and Zhang، نويسنده , , Lei and Zhang، نويسنده , , Zhitao and Pi، نويسنده , , Li and Tan، نويسنده , , Shun and Zhang، نويسنده , , Yuheng، نويسنده ,
Issue Information
روزنامه با شماره پیاپی سال 2009
Pages
5
From page
1168
To page
1172
Abstract
The magnetic properties of Y 0.35Ln0.05Ca0.6MnO3 (Ln = La, Pr, Nd, Sm, Gd, Dy) have been investigated thoroughly. The small average cationic radius 〈 r A 〉 of the present system results in a short-range antiferromagnetic charge-ordering (AFM-CO) state in the manganites. With the decrease of temperature, a super-exchange interaction begins to establish itself between the remaining disordered Mn ions after the formation of the short-range CO state. Then, the reentrant cluster-glass state originates from the frustration between the FM order in the clusters and the AFM interactions present in the background matrix. However, the large magnetic moments of Gd3+ and Dy3+ ions apply an internal magnetic field on the Mn3+ and Mn4+ ions, which results in the suppression of the cluster-glass state.
Keywords
D. Order-disorder effects
Journal title
Solid State Communications
Serial Year
2009
Journal title
Solid State Communications
Record number
1765378
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