中国物理B ›› 2016, Vol. 25 ›› Issue (7): 78108-078108.doi: 10.1088/1674-1056/25/7/078108

所属专题: TOPICAL REVIEW — High pressure physics

• TOPICAL REVIEW—High pressure physics • 上一篇    下一篇

A-site ordered quadruple perovskite oxides AA3'B4O12

Youwen Long(龙有文)   

  1. 1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2 Collaborative Innovation Center of Quantum Matter, Beijing 100190, China
  • 收稿日期:2015-08-18 修回日期:2015-09-30 出版日期:2016-07-05 发布日期:2016-07-05
  • 通讯作者: Youwen Long E-mail:ywlong@iphy.ac.cn
  • 基金资助:

    Project supported by the National Basic Research Program of China (Grant No. 2014CB921500), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB07030300), and the National Natural Science Foundation of China (Grant No. 11574378).

A-site ordered quadruple perovskite oxides AA3'B4O12

Youwen Long(龙有文)1,2   

  1. 1 Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;
    2 Collaborative Innovation Center of Quantum Matter, Beijing 100190, China
  • Received:2015-08-18 Revised:2015-09-30 Online:2016-07-05 Published:2016-07-05
  • Contact: Youwen Long E-mail:ywlong@iphy.ac.cn
  • Supported by:

    Project supported by the National Basic Research Program of China (Grant No. 2014CB921500), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB07030300), and the National Natural Science Foundation of China (Grant No. 11574378).

摘要:

The A-site ordered perovskite oxides with chemical formula AA3'B4O12 display many intriguing physical properties due to the introduction of transition metals at both A' and B sites. Here, research on the recently discovered intermetallic charge transfer occurring between A'-site Cu and B-site Fe ions in LaCu3Fe4O12 and its analogues is reviewed, along with work on the magnetoelectric multiferroicity observed in LaMn3Cr4O12 with cubic perovskite structure. The Cu-Fe intermetallic charge transfer (LaCuLaCu33+Fe43+O12→LaCu32+Fe43.75+O12) leads to a first-order isostructural phase transition accompanied by drastic variations in magnetism and electrical transport properties. The LaMn3Cr4O12 is a novel spindriven multiferroic system with strong magnetoelectric coupling effects. The compound is the first example of cubic perovskite multiferroics to be found. It opens up a new arena for studying unexpected multiferroic mechanisms.

关键词: high-pressure synthesis, A-site ordered perovskite, charge transfer, multiferroicity

Abstract:

The A-site ordered perovskite oxides with chemical formula AA3'B4O12 display many intriguing physical properties due to the introduction of transition metals at both A' and B sites. Here, research on the recently discovered intermetallic charge transfer occurring between A'-site Cu and B-site Fe ions in LaCu3Fe4O12 and its analogues is reviewed, along with work on the magnetoelectric multiferroicity observed in LaMn3Cr4O12 with cubic perovskite structure. The Cu-Fe intermetallic charge transfer (LaCuLaCu33+Fe43+O12→LaCu32+Fe43.75+O12) leads to a first-order isostructural phase transition accompanied by drastic variations in magnetism and electrical transport properties. The LaMn3Cr4O12 is a novel spindriven multiferroic system with strong magnetoelectric coupling effects. The compound is the first example of cubic perovskite multiferroics to be found. It opens up a new arena for studying unexpected multiferroic mechanisms.

Key words: high-pressure synthesis, A-site ordered perovskite, charge transfer, multiferroicity

中图分类号:  (Pressure treatment)

  • 81.40.Vw
71.27.+a (Strongly correlated electron systems; heavy fermions) 75.30.-m (Intrinsic properties of magnetically ordered materials) 77.84.-s (Dielectric, piezoelectric, ferroelectric, and antiferroelectric materials)