Nanoscale Structure and Mechanism for Enhanced Electromechanical Response of Highly Strained BiFeO3 Thin Films

Nanoscale Structure and Mechanism for Enhanced Electromechanical Response of Highly Strained BiFeO3 Thin Films

The presence of a variety of structural variants in BiFeO3 thin films give rise to exotic electric‐field‐induced responses and resulting electromechanical responses as large as 5%. Using high‐resolution X‐ray diffraction and scanning‐probe‐micro­scopy‐based studies the numerous phases present at the...

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Veröffentlicht in:Advanced materials (Weinheim) 2011-07, Vol.23 (28), p.3170-3175
Hauptverfasser: Damodaran, Anoop R., Liang, Chen-Wei, He, Qing, Peng, Chun-Yen, Chang, Li, Chu, Ying-Hao, Martin, Lane W.
Format: Artikel
Sprache:eng
Schlagworte:
BiFeO3
Bismuth - chemistry
Electrochemical Techniques
electromechanical responses
Iron Compounds - chemistry
Microscopy, Atomic Force
Nanostructures - chemistry
Nanostructures - ultrastructure
Phase Transition
phase transitions
thin films
X-Ray Diffraction
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Zusammenfassung:The presence of a variety of structural variants in BiFeO3 thin films give rise to exotic electric‐field‐induced responses and resulting electromechanical responses as large as 5%. Using high‐resolution X‐ray diffraction and scanning‐probe‐micro­scopy‐based studies the numerous phases present at the phase boundaries are identified and an intermediate monoclinic phase, in addition to the previously observed rhombohedral‐ and tetragonal‐like phases, is discovered.
ISSN:0935-9648
1521-4095
DOI:10.1002/adma.201101164