Hysteretic 'Magnetic-Transport-Structural' Transition in '114' Cobaltites: Size Mismatch Effect
Autor: | Sarkar, Tapati, Caignaert, V., Pralong, V., Raveau, B. |
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Rok vydání: | 2010 |
Předmět: | |
Zdroj: | Chemistry of Materials, Vol. 22, Pg 6467-6473 (2010) |
Druh dokumentu: | Working Paper |
DOI: | 10.1021/cm103088e |
Popis: | The triple "magnetic-transport-structural" transition versus temperature in three series of "114" cobaltites - Y1-xYbxBaCo4O7, Y1-xCaxBaCo4O7 and Yb1-xCaxBaCo4O7 - has been studied using magnetic, transport and differential scanning calorimetric measurements. The effect of the size mismatch {\sigma}2, due to cationic disordering at the Ln sites upon such a transition is shown for the first time in a triangular lattice. We show that increasing Comment: 24 pages, 7 figures, 3 tables |
Databáze: | arXiv |
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