2021
DOI: 10.1038/s41467-020-20833-6
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A combinatory ferroelectric compound bridging simple ABO3 and A-site-ordered quadruple perovskite

Abstract: The simple ABO3 and A-site-ordered AA′3B4O12 perovskites represent two types of classical perovskite functional materials. There are well-known simple perovskites with ferroelectric properties, while there is still no report of ferroelectricity due to symmetry breaking transition in A-site-ordered quadruple perovskites. Here we report the high pressure synthesis of an A-site-ordered perovskite PbHg3Ti4O12, the only known quadruple perovskite that transforms from high-temperature centrosymmetric paraelectric ph… Show more

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Cited by 78 publications
(37 citation statements)
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“…For the B‐site ordered double perovskite (A 2 B′B′′O 6 ), when three‐quarters of the A‐site can be substituted with another transition‐metal A′, a quadruple perovskite (AA′ 3 B′ 2 B′′ 2 O 12 ) with an A‐site and B‐site ordered structure will form (Figure 2d). [ 26 ] Due to the square‐planar coordination, the A′‐site metal ions are commonly Cu 2+ and Mn 3+ ions with strong Jahn‐Teller distortions. [ 26,27 ] Because the low‐field magetoresistance effect of ordered perovskites is associated with antisite disorder between the B‐site and the B′‐site ions, it is possible to realize B/B′ sites with an ordered degree of nearly 100%.…”
Section: Emerging Materials With An Ordered Structurementioning
confidence: 99%
See 1 more Smart Citation
“…For the B‐site ordered double perovskite (A 2 B′B′′O 6 ), when three‐quarters of the A‐site can be substituted with another transition‐metal A′, a quadruple perovskite (AA′ 3 B′ 2 B′′ 2 O 12 ) with an A‐site and B‐site ordered structure will form (Figure 2d). [ 26 ] Due to the square‐planar coordination, the A′‐site metal ions are commonly Cu 2+ and Mn 3+ ions with strong Jahn‐Teller distortions. [ 26,27 ] Because the low‐field magetoresistance effect of ordered perovskites is associated with antisite disorder between the B‐site and the B′‐site ions, it is possible to realize B/B′ sites with an ordered degree of nearly 100%.…”
Section: Emerging Materials With An Ordered Structurementioning
confidence: 99%
“…[ 26 ] Due to the square‐planar coordination, the A′‐site metal ions are commonly Cu 2+ and Mn 3+ ions with strong Jahn‐Teller distortions. [ 26,27 ] Because the low‐field magetoresistance effect of ordered perovskites is associated with antisite disorder between the B‐site and the B′‐site ions, it is possible to realize B/B′ sites with an ordered degree of nearly 100%. [ 27a ] Such a peculiar two‐site ordered perovskite exhibits versatile electronic and functional properties.…”
Section: Emerging Materials With An Ordered Structurementioning
confidence: 99%
“…In addition, its structure and performance are closely related to the composition of the system [17]. Perovskite-type oxides can form compounds through partial doping of metal ions at A and B sites on the basis of maintaining stable crystal structure, as well as controlling the A and B sites on the basis of maintaining stable crystal structure, as well as controlling the elements and valence states so that the performance of perovskite materials present rich diversity [18][19][20].…”
Section: Introductionmentioning
confidence: 99%
“…On the other hand, the need to develop materials that can perform well in severe operating environments also drives us to understand how the micro-and nano-structures evolve, such as crystallite size, dislocations, voids, and grain boundaries [7][8][9][10][11] . Researchers must not only observe and understand the behavior of materials under such extreme environments but also tailor and control a material's response to enhance a device's performance, extend its lifetime, or enable new technologies [12][13][14][15][16] .…”
Section: Introductionmentioning
confidence: 99%