@article{broughton_o'donnell_gabilondo_newell_maggard_jones_2024, title={Superstructure reflections in 40% Sn(II)-substituted BaZr<sub>0.5</sub>Ti<sub>0.5</sub>O<sub>3</sub> perovskite modeled with a Bayesian method for crystallographic refinement}, volume={6}, ISSN={["1573-4803"]}, url={https://doi.org/10.1007/s10853-024-09878-w}, DOI={10.1007/s10853-024-09878-w}, journal={JOURNAL OF MATERIALS SCIENCE}, author={Broughton, Rachel and O'Donnell, Shaun and Gabilondo, Eric and Newell, Ryan and Maggard, Paul A. and Jones, Jacob L.}, year={2024}, month={Jun} }
 @article{gabilondo_newell_broughton_koldemir_poettgen_jones_maggard_2023, title={Switching Lead for Tin in PbHfO<sub>3</sub>: Noncubic Structure of SnHfO<sub>3</sub>}, volume={9}, ISSN={["1521-3773"]}, DOI={10.1002/anie.202312130}, abstractNote={AbstractThe removal of lead from commercialized perovskite‐oxide‐based piezoceramics has been a recent major topic in materials research owing to legislation in many countries. In this regard, Sn(II)‐perovskite oxides have garnered keen interest due to their predicted large spontaneous electric polarizations and isoelectronic nature for substitution of Pb(II) cations. However, they have not been considered synthesizable owing to their high metastability. Herein, the perovskite lead hafnate, i.e., PbHfO3 in space group Pbam, is shown to react with SnClF at a low temperature of 300 °C, and resulting in the first complete Sn(II)‐for‐Pb(II) substitution, i.e. SnHfO3. During this topotactic transformation, a high purity and crystallinity is conserved with Pbam symmetry, as confirmed by X‐ray and electron diffraction, elemental analysis, and 119Sn Mössbauer spectroscopy. In situ diffraction shows SnHfO3 also possesses reversible phase transformations and is potentially polar between ≈130–200 °C. This so‐called ‘de‐leadification’ is thus shown to represent a highly useful strategy to fully remove lead from perovskite‐oxide‐based piezoceramics and opening the door to new explorations of polar and antipolar Sn(II)‐oxide materials.}, journal={ANGEWANDTE CHEMIE-INTERNATIONAL EDITION}, author={Gabilondo, Eric A. and Newell, Ryan J. and Broughton, Rachel and Koldemir, Aylin and Poettgen, Rainer and Jones, Jacob L. and Maggard, Paul A.}, year={2023}, month={Sep} }
 @article{gabilondo_newell_chestnut_weng_jones_maggard_2022, title={Circumventing thermodynamics to synthesize highly metastable perovskites: nano eggshells of SnHfO3}, volume={11}, ISSN={["2516-0230"]}, url={https://doi.org/10.1039/D2NA00603K}, DOI={10.1039/d2na00603k}, abstractNote={Through a multifaceted synthetic technique and leveraging surface diffusion, a new Sn(ii)-perovskite, SnHfO3, has been synthesized as nano eggshells for the first time.}, journal={NANOSCALE ADVANCES}, author={Gabilondo, Eric A. and Newell, Ryan J. and Chestnut, Jessica and Weng, James and Jones, Jacob L. and Maggard, Paul A.}, year={2022}, month={Nov} }
 @article{gabilondo_o'donnell_newell_broughton_mateus_jones_maggard_2022, title={Renaissance of Topotactic Ion-Exchange for Functional Solids with Close Packed Structures}, volume={4}, ISSN={["1521-3765"]}, url={http://dx.doi.org/10.1002/chem.202200479}, DOI={10.1002/chem.202200479}, abstractNote={AbstractRecently, many new, complex, functional oxides have been discovered with the surprising use of topotactic ion‐exchange reactions on close‐packed structures, such as found for wurtzite, rutile, perovskite, and other structure types. Despite a lack of apparent cation‐diffusion pathways in these structure types, synthetic low‐temperature transformations are possible with the interdiffusion and exchange of functional cations possessing ns2 stereoactive lone pairs (e. g., Sn(II)) or unpaired ndx electrons (e. g., Co(II)), targeting new and favorable modulations of their electronic, magnetic, or catalytic properties. This enables a synergistic blending of new functionality to an underlying three‐dimensional connectivity, i. e., [‐M−O‐M‐O‐]n, that is maintained during the transformation. In many cases, this tactic represents the only known pathway to prepare thermodynamically unstable solids that otherwise would commonly decompose by phase segregation, such as that recently applied to the discovery of many new small bandgap semiconductors.}, number={33}, journal={CHEMISTRY-A EUROPEAN JOURNAL}, publisher={Wiley}, author={Gabilondo, Eric and O'Donnell, Shaun and Newell, Ryan and Broughton, Rachel and Mateus, Marcelo and Jones, Jacob L. and Maggard, Paul A.}, year={2022}, month={Apr} }