Exchange bias effect in hybrid improper ferroelectricity Ca2.94Na0.06Mn2O7
Source abstract
Abstract
The hybrid improper ferroelectricity Ca3Mn2O7 (CMO) has been a subject of remarkable interest due to potential multiferroicity. In this paper we synthesized CMO and Ca2.94Na0.06Mn2O7 (CNMO) ceramics and investigated their structural and magnetic properties. It is found that Na doping effectively weakens the structural distortion as decreasing the orthorhombic distortion and Jahn-Teller distortion. Although both samples undergo an antiferromagnetic transition at temperature around 111 K, the exchange bias and coercive fields increase in CNMO. Such increased exchange bias field could be explained within a model of size-variable nanoscale ferromagnetic clusters embedded in an antiferromagnetic matrix.
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Research context
OpenAlex topics: Multiferroics and related materials · Ferroelectric and Piezoelectric Materials · Magnetic and transport properties of perovskites and related materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
College of Physics and Materials Science, Tianjin Normal University 1 , Tianjin 300387, China
Department of Physics, University of Hong Kong 2 , Pokfulam Road, Hong Kong, China
Tianjin Key Laboratory of Low-Dimensional Materials, Physics and Preparing Technology, Faculty of Science, Tianjin University 3 , Tianjin 300072, China
Funding
National Natural Science Foundation of China · Natural Science Foundation of Tianjin City
References (42)
Show source-provided references
1. Phys. Rev. Lett. · 2011 · 106 · 10720410.1103/physrevlett.106.107204 ↗
2. Adv. Funct. Mater. · 2013 · 23 · 481010.1002/adfm.201300210 ↗
3. Nature Materials · 2015 · 14 · 40710.1038/nmat4168 ↗
4. Phys. Rev. B · 2011 · 84 · 06411610.1103/physrevb.84.064116 ↗
5. Chin. Phys. B · 2013 · 22 · 06620110.1088/1674-1056/22/6/066201 ↗
6. Appl. Phys. Lett. · 2012 · 101 · 19240710.1063/1.4767139 ↗
7. J. Phys.: Condens. Matter · 2004 · 16 · 533910.1088/0953-8984/16/29/023 ↗
8. Chem. Mater. · 2003 · 15 · 130210.1021/cm020470n ↗
9. Jpn. J. Appl. Phys. · 2011 · 50 · 04110110.7567/jjap.50.041101 ↗
10. Phys. Rev. B · 1996 · 53 · 1447010.1103/physrevb.53.14470 ↗
11. Nanoscale · 2014 · 6 · 1083110.1039/c4nr02557a ↗
12. Acta Cryst. A · 1976 · 32 · 75110.1107/s0567739476001551 ↗
13. Chem. Mater. · 2000 · 12 · 9010.1021/cm991094i ↗
14. Phys. Rev. B · 2006 · 73 · 06430210.1103/physrevb.73.064302 ↗
15. Phys. Rev. B · 2016 · 93 · 05430110.1103/physrevb.93.054301 ↗
16. Mater. Lett. · 2015 · 156 · 7610.1016/j.matlet.2015.04.150 ↗
17. Phys. Rev. B · 2000 · 61 · 1470610.1103/physrevb.61.14706 ↗
18. Chem. Mater. · 2015 · 27 · 660810.1021/acs.chemmater.5b03118 ↗
19. J. Raman Spectrosc. · 1997 · 28 · 61310.1002/(sici)1097-4555(199708)28:8<613::aid-jrs138>3.0.co;2-t ↗
20. J. Mater. Chem. C · 2015 · 3 · 312110.1039/c4tc02828g ↗
21. Adv. Mater. · 2015 · 27 · 598910.1002/adma.201502024 ↗
22. J. Mater. Chem. · 2012 · 22 · 273310.1039/c1jm14355g ↗
23. J. Am. Ceram. Soc. · 2011 · 94 · 132410.1111/j.1551-2916.2011.04463.x ↗
24. Phys. Rev. B · 2009 · 80 · 12512110.1103/physrevb.80.169902 ↗
25. J. Phys. Chem. C · 2011 · 115 · 264410.1021/jp109856h ↗
26. Phys. Rev. B · 2007 · 75 · 01441410.1103/physrevb.75.014414 ↗
27. Chem. Mater. · 1998 · 10 · 364310.1021/cm980380b ↗
28. Phys. Rev. B · 2000 · 62 · 648510.1103/physrevb.62.6485 ↗
29. Phys. Rev. B · 1999 · 59 · 127710.1103/physrevb.59.1277 ↗
30. Phys. Rev. B · 1997 · 55 · 15 04310.1103/physrevb.55.15043 ↗
31. J. Phys. Chem. Solids. · 1959 · 10 · 8710.1016/0022-3697(59)90061-7 ↗
32. Chem. Mater. · 2008 · 20 · 198810.1021/cm071712s ↗
33. Ceram. Int. · 2016 · 42 · 845310.1016/j.ceramint.2016.02.065 ↗
34. J. Supercond. Nov. Magn. · 2016 · 29 · 53110.1007/s10948-015-3333-x ↗
35. Phys. Rev. Lett. · 2009 · 102 · 17720810.1103/physrevlett.102.177208 ↗
36. Phys. Rev. · 1957 · 105 · 90410.1103/physrev.105.904 ↗
37. J. Appl. Phys. · 1962 · 33 · 132810.1063/1.1728716 ↗
38. Springer Tracts in Modern Physics · 2008 · 227 · 9710.1007/978-3-540-73462-8_3 ↗
39. Phys. Rev. B · 2002 · 66 · 05442210.1103/physrevb.66.054422 ↗
40. Phys. Rep. · 2005 · 422 · 6510.1016/j.physrep.2005.08.004 ↗
41. Phys. Rev. B · 2013 · 88 · 06442410.1103/physrevb.88.064424 ↗
42. 1972