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[交流] 【综述总动员】——功能材料版活动

亲爱的各位虫友们，科研道路上的同伴们，你们好！
不论你是刚刚接触学术的菜鸟，还是在科研领域颇有心得的老兵，也可能已经是某一学科的学术带头人，想来都对文献综述并不陌生。
当我们初出茅庐的时候，一篇综述可能会让我们理清学科过去的发展历史，了解现今的研究状况，并能够把握学科未来的研究走向、重点及热点。
10年、20年、甚至100年的时间跨度，由前辈带你一一走过，丰富的学术知识、信息和细节，都可以使我们从中获取足够的学术养分。
因此，研究综述，应当是一个科研菜鸟从事学术研究的第一课，也是着手研究的必备读物。

本次活动面向各位虫友，欢迎将您看过的文献综述与大家分享，为科研路上的新人放下一座灯塔。
我们将按综述的质量和数量发放奖励。

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【相关领域】
弛豫铁电单晶
【作者】
Enwei Sun, Wenwu Cao
【题目】
Relaxor-based ferroelectric single crystals: growth, domain engineering, characterization and applications
【刊名】
Progress in Materials Science
【出版日期】
August 2014
【卷期号】
Volume 65
【页码】
Pages 124–210
【摘要】
In the past decade, domain engineered relaxor-PT ferroelectric single crystals, including (1 x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 (PMN–PT), (1 x)Pb(Zn1/3Nb2/3)O3–xPbTiO3 (PZN–PT) and (1 x y)Pb(In1/2Nb1/2)O3–yPb(Mg1/3Nb2/3)O3–xPbTiO3 (PIN–PMN–PT), with compositions near the morphotropic phase boundary (MPB) have triggered a revolution in electromechanical devices owing to their giant piezoelectric properties and ultra-high electromechanical coupling factors. Compared to traditional PbZr1砢吀椀砀?�3 (PZT) ceramics, the piezoelectric coefficient d33 is increased by a factor of 5 and the electromechanical coupling factor k33 is increased from <70% to >90%. Many emerging rich physical phenomena, such as charged domain walls, multi-phase coexistence, and domain pattern symmetries, have posed challenging fundamental questions for scientists. The superior electromechanical properties of these domain engineered single crystals have prompted the design of a new generation electromechanical devices, including sensors, transducers, actuators and other electromechanical devices, with greatly improved performance. It took less than 7 years from the discovery of larger size PMN–PT single crystals to the commercial production of the high-end ultrasonic imaging probe “PureWave”. The speed of development is unprecedented, and the research collaboration between academia and industrial engineers on this topic is truly intriguing. It is also exciting to see that these relaxor-PT single crystals are being used to replace traditional PZT piezoceramics in many new fields outside of medical imaging. The new ternary PIN–PMN–PT single crystals, particularly the ones with Mn-doping, have laid a solid foundation for innovations in high power acoustic projectors and ultrasonic motors, hinting another revolution in underwater SONARs and miniature actuation devices. This article intends to provide a comprehensive review on the development of relaxor-PT single crystals, spanning material discovery, crystal growth techniques, domain engineering concept, and full-matrix property characterization all the way to device innovations. It outlines a truly encouraging story in materials science in the modern era. All key references are provided and 30 complete sets of material parameters for different types of relaxor-PT single crystals are listed in Appendix A. It is the intension of this review article to serve as a resource for those who are interested in basic research and practical applications of these relaxor-PT single crystals. In addition, possible mechanisms of giant piezoelectric properties in these domain-engineered relaxor-PT systems will be discussed based on contributions from polarization rotation and charged domain walls.

[ Last edited by ivansdk on 2014-10-28 at 22:43 ]

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