Extending the n=2 Ruddlesden-Popper Solid Solution La2-2xSr1+2xMn2O7 Beyond x=0.5: Synthesis of Mn4+-rich Compounds

Dimitri N. Argyriou; John F. Mitchell; Julie E. Millburn

arxiv: cond-mat/9904078 · v1 · submitted 1999-04-06 · ❄️ cond-mat.mtrl-sci · cond-mat.str-el

Extending the n=2 Ruddlesden-Popper Solid Solution La2-2xSr1+2xMn2O7 Beyond x=0.5: Synthesis of Mn4+-rich Compounds

Julie E. Millburn , John F. Mitchell , Dimitri N. Argyriou This is my paper

classification ❄️ cond-mat.mtrl-sci cond-mat.str-el

keywords la2-2xsr1synthesisxmn2o7accessannealingapproachbeyondcompositions

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We report the synthesis and room temperature crystal structures of the heretofore unknown, metastable manganites La2-2xSr1+2xMn2O7+delta (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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Extending the n=2 Ruddlesden-Popper Solid Solution La2-2xSr1+2xMn2O7 Beyond x=0.5: Synthesis of Mn4+-rich Compounds

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