DataVXAdvanced Materials InterfacesPaper
journal article·2024-08Open access

Exploring the Possibility of Thermally Assisted Creation and Annihilation of Anti‐Frenkel Defects in a Multiferroic Oxide for Tuning Interfacial Ferroelectricity

Youngki Yeo, Jihun Kim, Jeonghun Suh, Jinhyuk Jang, Kyungrok Kang, Peggy Schoenherr, Kwang‐Tak Kim, Yong‐Jin Kim, Kee Hoon Kim, Clemens Ulrich, Jan Seidel, Si‐Young Choi, Chan‐Ho Yang

Advanced Materials Interfaces· Volume 11· Issue 24
Publisher pageOpen full text
Source abstract

Abstract

Abstract Lattice defects such as oxygen vacancies, interstitials, and their complexes are present in crystalline oxide materials. In particular, anti‐Frenkel defects, which refer to charge‐neutral anion vacancy‐interstitial pairs, are strongly coupled with ferroelectric and dielectric properties as electric dipoles. However, in order to observe their macroscopic manifestation, delicate defect controls are required to the extent that electronic and ionic charges are almost completely suppressed. Here, the thermal cycle dependence of dielectric and piezoelectric properties is scrutinized in the strain‐driven morphotropic phase boundaries of multiferroic La‐substituted BiFeO3 thin films. Electrochemical impedance spectroscopy provides the Warburg feature that is considered evidence of the ionic origin. The observations are discussed based on anti‐Frenkel defects that are created or annihilated reversibly by thermal cycles through high‐temperature structural phase transition temperature or magnetic Néel temperature. The defect dipoles are spontaneously aligned by the flexoelectric effect in the phase boundaries inducing a metastable interfacial ferroelectric phase. The findings offer useful insight into defect dipoles.
Source: crossref · Quality: baseline

Research context

Electronic materials

OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Dielectric properties of ceramics

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Department of Physics Korea Advanced Institute of Science and Technology Daejeon 34141 Republic of Korea

Center for Lattice Defectronics Korea Advanced Institute of Science and Technology Daejeon 34141 Republic of Korea

Department of Materials Science and Engineering Pohang University of Science and Technology Pohang 37673 Republic of Korea

School of Materials Science and Engineering The University of New South Wales Sydney NSW 2052 Australia

Center for Novel States of Complex Materials Research Department of Physics and Astronomy Seoul National University Seoul 08826 Republic of Korea

Institute of Applied Physics Department of Physics and Astronomy Seoul National University Seoul 08826 Republic of Korea

Photovoltaics Research Department Korea Institute of Energy Research Daejeon 34129 Republic of Korea

School of Physics The University of New South Wales Sydney NSW 2052 Australia

Institute for the NanoCentury Korea Advanced Institute of Science and Technology Daejeon 34141 Republic of Korea

Funding

National Research Foundation · Samsung · Australian Research Council

References (44)

Show source-provided references
1. 10.1103/RevModPhys.84.11910.1103/RevModPhys.84.119 ↗
2. 10.1088/0953-8984/27/46/46300310.1088/0953-8984/27/46/463003 ↗
3. 10.1038/nnano.2015.19110.1038/nnano.2015.191 ↗
4. 10.1002/adma.20110281610.1002/adma.201102816 ↗
5. 10.1080/00018732.2015.111433810.1080/00018732.2015.1114338 ↗
6. 10.1038/s41586-018-0770-210.1038/s41586-018-0770-2 ↗
7. 10.1038/nmat479910.1038/nmat4799 ↗
8. 10.1038/s41467-020-15595-010.1038/s41467-020-15595-0 ↗
9. 10.1021/acs.nanolett.2c0264010.1021/acs.nanolett.2c02640 ↗
10. 10.1038/ncomms179910.1038/ncomms1799 ↗
11. 10.1038/nature2238910.1038/nature22389 ↗
12. 10.1038/ncomms1374510.1038/ncomms13745 ↗
13. 10.1038/s41563-020-0765-x10.1038/s41563-020-0765-x ↗
14. 10.1039/D1TA10072F10.1039/D1TA10072F ↗
15. 10.1021/jz500370k10.1021/jz500370k ↗
16. 10.1126/science.117704610.1126/science.1177046 ↗
17. 10.1146/annurev-matsci-062910-10044210.1146/annurev-matsci-062910-100442 ↗
18. 10.1063/1.283932510.1063/1.2839325 ↗
19. 10.1016/j.jallcom.2010.03.13110.1016/j.jallcom.2010.03.131 ↗
20. 10.1038/nphys390210.1038/nphys3902 ↗
21. 10.1038/srep3234710.1038/srep32347 ↗
22. 10.1021/acsnano.6b0786910.1021/acsnano.6b07869 ↗
23. 10.1002/adma.20140055710.1002/adma.201400557 ↗
24. 10.1038/am.2013.7210.1038/am.2013.72 ↗
25. 10.1063/1.475239510.1063/1.4752395 ↗
26. 10.1021/nn301245910.1021/nn3012459 ↗
27. 10.1103/PhysRevB.96.06440210.1103/PhysRevB.96.064402 ↗
28. 10.1038/ncomms122110.1038/ncomms1221 ↗
29. 10.1038/ncomms157610.1038/ncomms1576 ↗
30. 10.1080/00150193.2013.83847410.1080/00150193.2013.838474 ↗
31. 10.1039/D1TC02668B10.1039/D1TC02668B ↗
32. 10.1002/978047038158810.1002/9780470381588 ↗
33. 10.1149/2.026304jes10.1149/2.026304jes ↗
34. 10.3390/batteries404005810.3390/batteries4040058 ↗
35. 10.1021/jp305128z10.1021/jp305128z ↗
36. 10.1016/S1452-3981(23)15829-910.1016/S1452-3981(23)15829-9 ↗
37. 10.1063/1.348622610.1063/1.3486226 ↗
38. 10.1063/1.505266210.1063/1.5052662 ↗
39. 10.1038/nature0275610.1038/nature02756 ↗
40. 10.1107/S010876810702395610.1107/S0108768107023956 ↗
41. 10.1038/nature0650710.1038/nature06507 ↗
42. 10.1103/PhysRevB.91.14040510.1103/PhysRevB.91.140405 ↗
43. 10.1038/ncomms1266410.1038/ncomms12664 ↗
44. 10.1038/s41535-019-0155-210.1038/s41535-019-0155-2 ↗