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DOI: 10.1039/A902947H (Paper) Reference Section for: Chem. Commun., 1999, 1389-1390

Extending the n = 2 Ruddlesden–Popper solid solution La2–2xSr1 + 2xMn2O7 beyond x= 0.5: synthesis of Mn4+–rich compounds

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Julie E. Millburn, John F. Mitchell and Dimitri N. Argyriou

Abstract

Reported herein are the synthesis and room temperature crystal structures of the heretofore unknown, metastable manganites La2–2xSr1 + 2xMn2O7 + δ (0.5 ⩽ x ⩽ 0.9) via high temperature (T = 1650 °C) quenching followed by low temperature (T = 400 °C) annealing to fill oxygen vacancies; this approach enables access to the electronic, magnetic, and structural properties of previously unexplored compositions in this important CMR system.

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