Affiliation:
1. National Laboratory of Solid State Microstructures and School of Physics Nanjing University Nanjing 210093 China
2. Collaborative Innovation Center of Advanced Microstructures Nanjing 210093 China
Abstract
Herein, perovskite La0.64(Ba1−x
Ca
x
)0.36FeO3−δ () samples are synthesized and investigated by X‐ray diffraction and mechanical spectroscopy. The room‐temperature structure of La0.64Ba0.36FeO3−δ is a mixture of orthorhombic and cubic phases. The structures of calcium‐doped La0.64(Ba1−x
Ca
x
)0.36FeO3−δ are orthorhombic at room temperature. A modulus dip is observed above room temperature in La0.64(Ba1−x
Ca
x
)0.36FeO3−δ () samples. This corresponds to a phase transition from orthorhombic to rhombohedral structure with increasing temperature. The effect of oxygen nonstoichiometry on the room‐temperature structure and phase transition is observed by mechanical spectroscopy.
Funder
National Natural Science Foundation of China
Subject
Condensed Matter Physics,Electronic, Optical and Magnetic Materials
Cited by
1 articles.
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