Topotactic transformation of single crystals: From perovskite to infinite-layer nickelates
Pascal Puphal, Yu‐Mi Wu, K. Fürsich, Hangoo Lee, Mohammad Pakdaman, J. A. N. Bruin, Jürgen Nuß, Y. Eren Suyolcu, Peter A. van Aken, B. Keimer, Masahiko Isobe, Matthias Hepting
Abstract
as the reducing agent. The transformation from the three-dimensional perovskite to the quasi–two-dimensional infinite-layer phase was thoroughly characterized by x-ray diffraction, electron microscopy, Raman spectroscopy, magnetometry, and electrical transport measurements. Our work demonstrates that the infinite-layer structure can be realized as a bulk phase in crystals with micrometer-sized single domains. The electronic properties of these specimens resemble those of epitaxial thin films rather than powders with similar compositions.
Topics & Concepts
Perovskite (structure)Transformation (genetics)Layer (electronics)Materials scienceCrystallographyNanotechnologyChemistryBiochemistryGeneMagnetic and transport properties of perovskites and related materialsElectronic and Structural Properties of OxidesAdvanced Condensed Matter Physics