Unraveling Elastic Anomalies during Morphotropic Phase Transitions

Pankaj Sharma; Kyung Rok Kang; Byung Kweon Jang; Chan Ho Yang; Jan Seidel

doi:10.1002/aelm.201600283

Unraveling Elastic Anomalies during Morphotropic Phase Transitions

Pankaj Sharma, Kyung Rok Kang, Byung Kweon Jang, Chan Ho Yang, Jan Seidel

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

External-stimuli-caused reversible morphotropic phase transformations between the thermodynamically stable competing structural phases are dynamically probed at the nanoscale in the strain-engineered mixed phase morphotropic BiFeO3 thin films. Using an acoustic approach, phase transformations and the associated elastic anomalies have been detected unambiguously, which underpin the origins of the enhanced electromechanical couplings arising during such phase transitions.

Original language	English
Article number	1600283
Number of pages	7
Journal	Advanced Electronic Materials
Volume	2
Issue number	12
Early online date	7 Nov 2016
DOIs	https://doi.org/10.1002/aelm.201600283
Publication status	Published - Dec 2016
Externally published	Yes

Keywords

contact resonance frequency
elastic anomalies
mechanical softening
morphotropic phase boundaries
nanoscale phase transformations

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10.1002/aelm.201600283Licence: In Copyright

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abstract = "External-stimuli-caused reversible morphotropic phase transformations between the thermodynamically stable competing structural phases are dynamically probed at the nanoscale in the strain-engineered mixed phase morphotropic BiFeO3 thin films. Using an acoustic approach, phase transformations and the associated elastic anomalies have been detected unambiguously, which underpin the origins of the enhanced electromechanical couplings arising during such phase transitions.",

keywords = "contact resonance frequency, elastic anomalies, mechanical softening, morphotropic phase boundaries, nanoscale phase transformations",

author = "Pankaj Sharma and Kang, {Kyung Rok} and Jang, {Byung Kweon} and Yang, {Chan Ho} and Jan Seidel",

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AU - Seidel, Jan

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AB - External-stimuli-caused reversible morphotropic phase transformations between the thermodynamically stable competing structural phases are dynamically probed at the nanoscale in the strain-engineered mixed phase morphotropic BiFeO3 thin films. Using an acoustic approach, phase transformations and the associated elastic anomalies have been detected unambiguously, which underpin the origins of the enhanced electromechanical couplings arising during such phase transitions.

KW - contact resonance frequency

KW - elastic anomalies

KW - mechanical softening

KW - morphotropic phase boundaries

KW - nanoscale phase transformations

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Unraveling Elastic Anomalies during Morphotropic Phase Transitions

Abstract

Keywords

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