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Title: Electric-field control of tri-state phase transformation with a selective dual-ion switch

Materials can be transformed from one crystalline phase to another by using an electric field to control ion transfer, in a process that can be harnessed in applications such as batteries, smart windows and fuel cells. Increasing the number of transferrable ion species and of accessible crystalline phases could in principle greatly enrich material functionality. However, studies have so far focused mainly on the evolution and control of single ionic species (for example, oxygen, hydrogen or lithium ions). In this paper, we describe the reversible and non-volatile electric-field control of dual-ion (oxygen and hydrogen) phase transformations, with associated electrochromic and magnetoelectric effects. We show that controlling the insertion and extraction of oxygen and hydrogen ions independently of each other can direct reversible phase transformations among three different material phases: the perovskite SrCoO 3-δ, the brownmillerite SrCoO 2.5, and a hitherto-unexplored phase, HSrCoO 2.5. By analysing the distinct optical absorption properties of these phases, we demonstrate selective manipulation of spectral transparency in the visible-light and infrared regions, revealing a dual-band electrochromic effect that could see application in smart windows. Moreover, the starkly different magnetic and electric properties of the three phases—HSrCoO 2.5 is a weakly ferromagnetic insulator, SrCoO 3-δ is amore » ferromagnetic metal, and SrCoO 2.5 is an antiferromagnetic insulator—enable an unusual form of magnetoelectric coupling, allowing electric-field control of three different magnetic ground states. Finally, these findings open up opportunities for the electric-field control of multistate phase transformations with rich functionalities.« less
Authors:
 [1] ;  [1] ;  [2] ;  [3] ;  [4] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [3] ;  [5] ;  [3] ;  [6] ;  [7] ;  [5] more »;  [8] ;  [9] « less
  1. Tsinghua Univ., Beijing (China). State Key Lab. of Low Dimensional Quantum Physics. Dept. of Physics
  2. Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Lab. for Condensed Matter Physics. Inst. of Physics; Tsinghua Univ., Beijing (China). State Key Lab. of New Ceramics and Fine Processing. School of Materials Science and Engineering
  3. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source
  4. Durham Univ. (United Kingdom). Dept. of Physics
  5. Tsinghua Univ., Beijing (China). State Key Lab. of Low Dimensional Quantum Physics. Dept. of Physics; Collaborative Innovation Center of Quantum Matter, Beijing (China)
  6. Chinese Academy of Sciences (CAS), Beijing (China). Beijing National Lab. for Condensed Matter Physics. Inst. of Physics; Collaborative Innovation Center of Quantum Matter, Beijing (China)
  7. Tsinghua Univ., Beijing (China). State Key Lab. of New Ceramics and Fine Processing. School of Materials Science and Engineering
  8. RIKEN Center for Emergent Matter Science (CEMS), Wako (Japan)
  9. Tsinghua Univ., Beijing (China). State Key Lab. of Low Dimensional Quantum Physics. Dept. of Physics; Collaborative Innovation Center of Quantum Matter, Beijing (China); RIKEN Center for Emergent Matter Science (CEMS), Wako (Japan)
Publication Date:
Grant/Contract Number:
AC02-05CH11231; 2015CB921700; 2016YFA0301004; 2015CB921002; 51672307; 51421002; 51522212; 11274194; 51561145005; 51332001; 11334006; 20141081116; 2014CB921002; XDB07030200
Type:
Accepted Manuscript
Journal Name:
Nature (London)
Additional Journal Information:
Journal Name: Nature (London); Journal Volume: 546; Journal Issue: 7656; Journal ID: ISSN 0028-0836
Publisher:
Nature Publishing Group
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Tsinghua Univ., Beijing (China); Chinese Academy of Sciences (CAS), Beijing (China)
Sponsoring Org:
USDOE; National Basic Research Program of China; National Natural Science Foundation of China (NNSFC); Initiative Research Projects of Tsinghua Univ. (China); National Program on Key Basic Research (China); Strategic Priority Research Program of Chinese Academy of Sciences
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; electronic properties and materials; magnetic properties and materials; phase transitions and critical phenomena
OSTI Identifier:
1460295