Strain-tunable unconventional exchange-bias effect in epitaxial CaIrO3/ LaMnO 3 heterostructures

Yu, Tao1; Zhou, Liang1; Chen, Pingbo1; He, Hongtao1,2

2023-02-01

10.1016/j.physb.2022.414538

PHYSICA B-CONDENSED MATTER   影响因子和分区

0921-4526

1873-2135

The interfacial coupling in epitaxially grown bilayers composed of paramagnetic CaIrO3 and ferromagnetic LaMnO3 bilayers has been shown to give rise to an unexpected exchange bias effect. Systematic magnetic measurements ascribe this effect to the existence of an interfacial spin-cluster-like state in the bilayers. Furthermore, by tuning the epitaxial strains in the bilayers with different growth sequences, a much stronger exchange bias effect is observed in the CaIrO3/LaMnO3 bilayer rather than the LaMnO3/CaIrO3 bilayer, revealing the indispensable role of epitaxial strains in engineering the interfacial coupling.

5d transition-Metal oxides Epitaxial strains Charge transfer Interfacial coupling

SCI

英语

第一 ; 通讯

Science, Technology and Innovation Commission of Shenzhen Municipality["GXWD20201230110313001","ZDSYS20190902092905285"] ; Natural Science Foundation of Guangdong Province[2021A1515010046]

Physics

Physics, Condensed Matter

WOS:000930497500001

ELSEVIER

PHYSICS

Web of Science

1.Southern Univ Sci & Technol, Dept Phys, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Shenzhen Key Lab Adv Quantum Funct Mat & Devices, Shenzhen 518055, Peoples R China

Yu, Tao,Zhou, Liang,Chen, Pingbo,et al. Strain-tunable unconventional exchange-bias effect in epitaxial CaIrO3/ LaMnO 3 heterostructures[J]. PHYSICA B-CONDENSED MATTER,2023,650.

Yu, Tao,Zhou, Liang,Chen, Pingbo,&He, Hongtao.(2023).Strain-tunable unconventional exchange-bias effect in epitaxial CaIrO3/ LaMnO 3 heterostructures.PHYSICA B-CONDENSED MATTER,650.

Yu, Tao,et al."Strain-tunable unconventional exchange-bias effect in epitaxial CaIrO3/ LaMnO 3 heterostructures".PHYSICA B-CONDENSED MATTER 650(2023).