THREE DIMENSIONS PHASE FIELD SIMULATION OF MECHATRONIC COUPLE FOR FERROELECTRIC MATERIALS

Acta Metall Sin

2008, Vol. 44

Issue (8): 927-932 DOI:

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THREE DIMENSIONS PHASE FIELD SIMULATION OF MECHATRONIC COUPLE FOR FERROELECTRIC MATERIALS

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;. THREE DIMENSIONS PHASE FIELD SIMULATION OF MECHATRONIC COUPLE FOR FERROELECTRIC MATERIALS. Acta Metall Sin, 2008, 44(8): 927-932 .

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Abstract Using 3D-phase field theory, spontaneous polarization, hysteresis loop and mechatronic coupling of ferroelectric materials of have been simulated. The results show that the domain switching under applied electric field is carried out through initiating and growing of new domain and/or domain wall motion of the domains along the applied field. 90°domain switching of all kind of domains induces jump in the polarization near the coercive field. A tensile or compressive strain applied perpendicular to the electric field can hinder or promote domain switching.

Key words: ferroelectric materials mechatronic coupling 3D phase field simulation domain switching

Received: 14 March 2008

ZTFLH:

TG111.91

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y2008/V44/I8/927

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