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

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

Materials Science 2007-05-23 v1 Strongly Correlated Electrons

Authors: Julie E. Millburn , John F. Mitchell , Dimitri N. Argyriou

Abstract

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.

Keywords

Ruddlesden-Popper manganites synthesis CMR crystal structure

Cite

@article{arxiv.cond-mat/9904078,
  title  = {Extending the n=2 Ruddlesden-Popper Solid Solution La2-2xSr1+2xMn2O7 Beyond x=0.5: Synthesis of Mn4+-rich Compounds},
  author = {Julie E. Millburn and John F. Mitchell and Dimitri N. Argyriou},
  journal= {arXiv preprint arXiv:cond-mat/9904078},
  year   = {2007}
}

Comments

submitted to Chemical Communications, 4/7/99

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