Single or Vortex Ferroelectric and Ferromagnetic Domain Nanodot Array of Magnetoelectric BiFe_{0.9}Co_{0.1}O₃

Keita Ozawa; Yasuhito Nagase; Marin Katsumata; Kei Shigematsu; Masaki Azuma

doi:10.1021/acsami.4c01232

journal article·2024-04-09Open access

Single or Vortex Ferroelectric and Ferromagnetic Domain Nanodot Array of Magnetoelectric BiFe_0.9Co_0.1O₃

Keita Ozawa, Yasuhito Nagase, Marin Katsumata, Kei Shigematsu, Masaki Azuma

ACS Applied Materials & Interfaces

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Source abstract

Abstract

High Resolution Image Download MS PowerPoint Slide Nanodots composed of multiferroic cobalt-substituted BiFeO 3, a ferroelectric ferromagnet at room temperature, are fabricated by pulsed laser deposition using anodized porous alumina as masks. The obtained nanodots are approximately 60 nm in diameter, more than 10 nm in thickness, and approximately 70 Gbit/in. 2 in density. Piezoresponse and magnetic force microscopies show both ferroelectricity and ferromagnetism with a single-domain nature. It is also found that the dot with 190 nm diameter had multidomain vortex ferroelectric and magnetic structures indicating the strong magnetoelectric coupling. The single-domain cobalt-substituted BiFeO 3 nanodots are suitable for verifying magnetization reversal by the electric field, which is the first step in the development of low-power-consumption nonvolatile magnetic memory devices.

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Research context

Nanomaterials Electronic materials Materials processing

OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Teratomas and Epidermoid Cysts

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

Affiliations

Laboratory for Materials and Structures, Institute of Innovative Research, Tokyo Institute of Technology, Nagatsuta, Midori-ku, Yokohama, Kanagawa 226-8501, Japan

Kanagawa Institute of Industrial Science and Technology (KISTEC), Shimoimaizumi, Ebina, Kanagawa 243-0435, Japan

Sumitomo Chemical Next-Generation Eco-Friendly Devices Collaborative Research Cluster, Tokyo Institute of Technology, Yokohama 226-8501, Japan

Living Systems Materialogy (LiSM) Research Group, International Research Frontiers Initiative (IRFI), Tokyo Institute of Technology, Yokohama 226-8501, Japan

Funding

Ministry of Education, Culture, Sports, Science and Technology · Japan Society for the Promotion of Science · Kanagawa Institute of Industrial Science and Technology

References (38)

Show source-provided references

1. 10.1038/s41563-018-0275-210.1038/s41563-018-0275-2 ↗

2. 10.1063/1.487095710.1063/1.4870957 ↗

3. 10.1126/science.111335710.1126/science.1113357 ↗

4. 10.1088/0022-3727/38/8/R0110.1088/0022-3727/38/8/R01 ↗

5. 10.1038/nmat218910.1038/nmat2189 ↗

6. 10.1038/nmat186810.1038/nmat1868 ↗

7. 10.1016/0038-1098(65)90031-110.1016/0038-1098(65)90031-1 ↗

8. 10.1103/PhysRevB.74.22441210.1103/PhysRevB.74.224412 ↗

9. 10.1088/0022-3719/15/23/02010.1088/0022-3719/15/23/020 ↗

10. 10.1021/ic402427q10.1021/ic402427q ↗

11. 10.7566/JPSJ.85.06470410.7566/JPSJ.85.064704 ↗

12. 10.1002/adma.20160313110.1002/adma.201603131 ↗

13. 10.1002/adma.20170566510.1002/adma.201705665 ↗

14. 10.35848/1882-0786/ab98b210.35848/1882-0786/ab98b2 ↗

15. 10.1038/s41467-018-06190-510.1038/s41467-018-06190-5 ↗

16. 10.1038/nmat362910.1038/nmat3629 ↗

17. 10.1021/acs.nanolett.8b0476510.1021/acs.nanolett.8b04765 ↗

18. 10.1146/annurev-matsci-080819-01183110.1146/annurev-matsci-080819-011831 ↗

19. 10.1038/srep0968010.1038/srep09680 ↗

20. 10.1039/C4TC02660H10.1039/C4TC02660H ↗

21. 10.1126/sciadv.170091910.1126/sciadv.1700919 ↗

22. 10.1002/adma.20120483910.1002/adma.201204839 ↗

23. 10.1002/adfm.20180727610.1002/adfm.201807276 ↗

24. 10.1021/acsami.7b1260510.1021/acsami.7b12605 ↗

25. 10.1016/j.ceramint.2018.08.26510.1016/j.ceramint.2018.08.265 ↗

26. 10.1038/srep2329910.1038/srep23299 ↗

27. 10.1002/adma.20060121510.1002/adma.200601215 ↗

28. 10.1021/cr500002z10.1021/cr500002z ↗

29. 10.1088/0957-4484/27/48/48530210.1088/0957-4484/27/48/485302 ↗

30. 10.1039/b409988e10.1039/b409988e ↗

31. 10.1021/nn901250w10.1021/nn901250w ↗

32. 10.1016/j.progpolymsci.2015.10.00310.1016/j.progpolymsci.2015.10.003 ↗

33. 10.1103/PhysRevB.83.14410710.1103/PhysRevB.83.144107 ↗

34. 10.1143/JJAP.49.05150110.1143/JJAP.49.051501 ↗

35. 10.1002/adfm.20110197010.1002/adfm.201101970 ↗

36. 10.1063/1.356175710.1063/1.3561757 ↗

37. 10.1038/nnano.2008.16110.1038/nnano.2008.161 ↗

38. 10.7567/APEX.7.09150110.7567/APEX.7.091501 ↗