Chemical design of a new displacive-type ferroelectric

被引：14

作者：

Itoh, Mitsuru ^{[1
]}

Hamasaki, Yosuke ^{[2
]}

Takashima, Hiroshi ^{[1
]}

Yokoi, Rie ^{[3
]}

Taguchi, Ayako ^{[3
]}

Moriwake, Hiroki ^{[3
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Inst Adv Elect & Photon, Tsukuba, Ibaraki 3058568, Japan

[2] Natl Def Acad, Dept Appl Phys, Yokosuka, Kanagawa 2398686, Japan

[3] Japan Fine Ceram Res Ctr, Nanostruct Lab, Nagoya, Aichi 4568587, Japan

来源：

DALTON TRANSACTIONS | 2022年 / 51卷 / 07期

关键词：

ROOM-TEMPERATURE FERRIMAGNETISM; BORN EFFECTIVE CHARGES; HIGH-PRESSURE; CRYSTAL-STRUCTURE; PHASE-TRANSITION; THIN-FILMS; IRON-OXIDE; HEXAGONAL FERROELECTRICITY; QUANTUM PARAELECTRICITY; ORTHORHOMBIC PEROVSKITE;

D O I：

10.1039/d1dt03693a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Since the discovery of the ferroelectric perovskite-type oxide BaTiO3 in 1943, numerous materials have been surveyed as candidates for new ferroelectrics. Perovskite-type materials have played a leading role in basic research and applications of ferroelectric materials since the last century. Experimentalists and theoreticians have developed a new materials design stream for post-perovskite materials. In this stream, we have mainly focused on the role of covalency in the evolution of ferroelectricity for displacive-type ferroelectrics in oxides. This perspective surveys the following topics: (1) crossover from quantum paraelectric to ferroelectric through a ferroelectric quantum critical point, (2) the role of cation-oxygen covalency in ferroelectricity and the crossover to quantum paraelectric in perovskite-type compounds, (3) off-center-induced ferroelectricity in perovskites, (4) second-order Jahn-Teller effect enhancement of ferroelectricity in lithium-niobate-type oxides, (5) the presence of four ferroelectric phases and structural transitions of phases of AFeO(3) with decreasing radius of A (A = La-Al), (6) tetrahedral ferroelectrics of perovskite-related Bi2SiO5 and wurtzites, (7) a rare type of polarization switching system in which the coordination number of ions in kappa-Al2O3 systems changes between 4 and 6, and (8) lone-pair-electron-induced ferroelectrics in langasite-type compounds.

引用

页码：2610 / 2630

页数：21

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