2024
DOI: 10.1021/acs.jpcc.3c07939
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Decoding the Piezo-Contributions of Potassium Sodium Niobate Ceramics

Jie Xing,
Mingyue Mo,
Yuan Cheng
et al.

Abstract: The contributions to the piezoelectric coefficient d 33 from the intrinsic contribution, reversible low-field domain wall vibration, and irreversible domain switching and displacement of domain walls have been quantitatively investigated in potassium sodium niobate (KNN) ceramics with different phase structures. By measuring the piezoelectric coefficient at a large field and the piezoelectric hysteresis under subswitching conditions following Rayleigh relations, the intrinsic/extrinsic and reversible/irreversi… Show more

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Cited by 1 publication
(7 citation statements)
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“…To further explore the contribution of irreversible domain switching, Rayleigh law based on phenomenological theory is also used to reveal the origin of strain 46 52 . The domain structure remains unchanged with the AC field cycle of 1/2 E c to 1/3 E c during the Raleigh region, leading to an increase linearly piezoelectric constant under the sub-switching conditions 50 . Their Rayleigh relationship can be expressed as follows 50 : where S is strain value, E is the driving electric field, E 0 is the maximum electric field, d init is the initial reversible piezoelectric response, α is the piezoelectric Rayleigh coefficient, and α E 0 describes the irreversible piezoelectric response caused by the irreversible domain response.…”
Section: Resultsmentioning
confidence: 98%
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“…To further explore the contribution of irreversible domain switching, Rayleigh law based on phenomenological theory is also used to reveal the origin of strain 46 52 . The domain structure remains unchanged with the AC field cycle of 1/2 E c to 1/3 E c during the Raleigh region, leading to an increase linearly piezoelectric constant under the sub-switching conditions 50 . Their Rayleigh relationship can be expressed as follows 50 : where S is strain value, E is the driving electric field, E 0 is the maximum electric field, d init is the initial reversible piezoelectric response, α is the piezoelectric Rayleigh coefficient, and α E 0 describes the irreversible piezoelectric response caused by the irreversible domain response.…”
Section: Resultsmentioning
confidence: 98%
“…The domain structure remains unchanged with the AC field cycle of 1/2 E c to 1/3 E c during the Raleigh region, leading to an increase linearly piezoelectric constant under the sub-switching conditions 50 . Their Rayleigh relationship can be expressed as follows 50 : where S is strain value, E is the driving electric field, E 0 is the maximum electric field, d init is the initial reversible piezoelectric response, α is the piezoelectric Rayleigh coefficient, and α E 0 describes the irreversible piezoelectric response caused by the irreversible domain response. The S – E loops are measured at an AC electric field with a maximum amplitude of 3 kV/cm after poling at a high electric field.…”
Section: Resultsmentioning
confidence: 98%
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