Application study of Mn-doped PIN-PMN-PT relaxor ferroelectric crystal grown by Vertical Gradient Freeze method. (11th March 2020)

• Record Type: Journal Article
• Authors: Jiang, Zibo; Ye, Zuo-Guang
• Is Part Of: Ferroelectrics. Volume 557(2020)
• Page Start: 9
• Page End: 17
• Publication Date: 2020-03-11
• Subjects: Mn-doped PIN-PMN-PT -- crystal -- pyroelectricity -- ferroelectricity -- AC poling; Ferroelectricity -- Periodicals; Ferroelectric crystals -- Periodicals; 537
• DOI: 10.1080/00150193.2020.1713358
• Languages: English
• ISSNs: 0015-0193

Abstract

Abstract: A 3-inch Mn:PIN-36%PMN-32%PT (Generation III) relaxor ferroelectric crystal was grown using the Vertical Gradient Freeze method. Crystals of [1, 11] and [111] orientations were prepared and studied, evaluating their dielectric constants, piezoelectric coefficients, electromechanical coupling coefficients, loss tangents and pyroelectric coefficients. It is shown that in pyroelectric applications, [111]-poled crystals are particularly suitable for high performance sensors due to a relatively high pyroelectric coefficient, low loss tangent. In addition, the specific heat is lower as compared to LiTaO3 . It is also shown that the alternating current (AC) poling has a more significant effect on the [001]-poled crystal than on the [011]- and [111]-poled crystals due to the lattice distortion induced by a strong electric field along the [001] direction.