DataVXChemistry of MaterialsPaper
journal article·2018-09-11

Room Temperature Exchange Bias in Structure-Modulated Single-Phase Multiferroic Materials

Guopeng Wang, Zezhi Chen, Hongchuan He, Dechao Meng, He Yang, Xiangyu Mao, Qi Pan, Baojin Chu, Ming Zuo, Zhihu Sun, Ranran Peng, Zhengping Fu, Xiaofang Zhai, Yalin Lu

Chemistry of Materials· Volume 30· Issue 17
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Source abstract

Abstract

Single-phase materials with room temperature (RT) exchange bias (EB) are very important for future applications in spintronic devices, magnetic storage, and sensors. However, such materials are rare because EB normally occurs with ferromagnetic (FM)/antiferromagnetic (AFM) boundaries. In this work, RT EB was realized by breaking the homogeneous structure of long-period Aurivillius oxides through a simple Fe/Ti content modulation. Fantastic intergrowth structures, with different neighboring layer numbers larger than 1, were first observed in this material system with optimized compositions. The intergrowth structure introduces a much larger lattice distortion and probability of Fe–O–Fe interaction, which can largely enhance the EB effect and the EB temperature. Most importantly, RT EB was finally realized in Bi10Fe6+yTi3–yO30+δ (x = 0.2, 0.4) samples with the largest HE of ∼38 Oe measured at 300 K. Significantly, the concurring room temperature multiferroic behavior in such materials may add a new regulating factor for the EB through the application of an electrical field, which is meaningful for future device operations. The findings in this work alleviate the limitation of fabricating Aurivillius oxides with large layer numbers and shed new light on realizing room temperature EB in single-phase materials, with the potential for building future magnetically or electrically controlled spintronic devices.
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Research context

OpenAlex topics: Multiferroics and related materials · Magnetic and transport properties of perovskites and related materials · Magnetic properties of thin films

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

Affiliations

CAS Key Laboratory of Materials for Energy Conversion, Department of Materials Science and Engineering, University of Science and Technology of China, Hefei 230026, P. R. China

Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei 230026, P. R. China

Microsystem and Terahertz Research Center & Institute of Electronic Engineering, CAEP, Chendu 610200, P. R. China

College of Physics Science and Technology, Yangzhou University, Yangzhou 225002, China

National Synchrotron Radiation Laboratory, University of Science and Technology of China, Hefei 230026, P. R. China

Synergetic Innovation Center of Quantum Information & Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China

Laser Optics Research Center, U.S. Air Force Academy, U.S. Air Force Academy, Colorado 80840, United States

Funding

Ministry of Science and Technology of the People's Republic of China · Bureau of International Cooperation, Chinese Academy of Sciences · National Natural Science Foundation of China · Chinese Academy of Sciences · Hefei Science Center, Chinese Academy of Sciences

References (43)

Show source-provided references
1. 10.1103/PhysRev.102.141310.1103/PhysRev.102.1413 ↗
2. 10.1103/PhysRev.105.90410.1103/PhysRev.105.904 ↗
3. 10.1016/j.physrep.2005.08.00410.1016/j.physrep.2005.08.004 ↗
4. 10.1038/nmat180910.1038/nmat1809 ↗
5. 10.1063/1.339978010.1063/1.3399780 ↗
6. 10.1038/srep0109410.1038/srep01094 ↗
7. 10.1038/nmat478310.1038/nmat4783 ↗
8. 10.1021/nl203451410.1021/nl2034514 ↗
9. 10.1039/C4NR00393D10.1039/C4NR00393D ↗
10. 10.1063/1.480417910.1063/1.4804179 ↗
11. 10.1063/1.242688710.1063/1.2426887 ↗
12. 10.1103/PhysRevLett.110.06720210.1103/PhysRevLett.110.067202 ↗
13. 10.1039/c3cp55316g10.1039/c3cp55316g ↗
14. 10.1016/j.jmmm.2015.09.07410.1016/j.jmmm.2015.09.074 ↗
15. 10.1038/nmat278510.1038/nmat2785 ↗
16. 10.1038/srep0124510.1038/srep01245 ↗
17. 10.1063/1.240220410.1063/1.2402204 ↗
18. 10.1063/1.280169510.1063/1.2801695 ↗
19. 10.1088/0957-4484/22/38/38570110.1088/0957-4484/22/38/385701 ↗
20. 10.1039/C4NR03148B10.1039/C4NR03148B ↗
21. 10.1088/0022-3727/47/30/30500110.1088/0022-3727/47/30/305001 ↗
22. 10.1038/nmat424810.1038/nmat4248 ↗
23. 10.1039/C4NR03542A10.1039/C4NR03542A ↗
24. 10.1039/C4TA01799D10.1039/C4TA01799D ↗
25. 10.1016/j.jmmm.2013.04.04610.1016/j.jmmm.2013.04.046 ↗
26. 10.1111/jace.1261410.1111/jace.12614 ↗
27. 10.1038/srep1526110.1038/srep15261 ↗
28. 10.1111/jace.1410810.1111/jace.14108 ↗
29. 10.1039/C7NR02156A10.1039/C7NR02156A ↗
30. 10.1038/nmat280310.1038/nmat2803 ↗
31. 10.1038/srep0890510.1038/srep08905 ↗
32. 10.1016/0022-4596(80)90402-810.1016/0022-4596(80)90402-8 ↗
33. 10.1016/0022-4596(81)90154-710.1016/0022-4596(81)90154-7 ↗
34. 10.1111/jace.1431210.1111/jace.14312 ↗
35. 10.1038/srep4354010.1038/srep43540 ↗
36. 10.1038/srep0525510.1038/srep05255 ↗
37. 10.1063/1.473252610.1063/1.4732526 ↗
38. 10.1063/1.486542210.1063/1.4865422 ↗
39. 10.1021/cm00008a02110.1021/cm00008a021 ↗
40. 10.1103/PhysRev.120.9110.1103/PhysRev.120.91 ↗
41. 10.1039/C4MH00202D10.1039/C4MH00202D ↗
42. 10.1088/0022-3727/47/30/30500110.1088/0022-3727/47/30/305001 ↗
43. 10.1007/BF0274722510.1007/BF02747225 ↗