Enhanced Coupling Between Soft Ferromagnetism and Displacive Ferroelectricity in the Pb‐Site Modified PbFe1/2Nb1/2O3
Abstract Albeit having great potential toward unprecedented type of applications such as magnetoelectric (ME) sensors and memories, practically useful single‐phase multiferroics that show large coupling between ferromagnetism and ferroelectricity at ambient temperatures are still lacking. Here, the...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2025-02-01
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| Series: | Advanced Electronic Materials |
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| Online Access: | https://doi.org/10.1002/aelm.202400370 |
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| author | Ji‐Hun Park Jae‐Hyeon Cho Nyun Jong Lee Hyun‐Jae Lee Ju‐Hyeon Lee Geon‐Ju Lee Frederick P. Marlton Motohiro Suzuki Manuel Hinterstein Yoon Seok Oh Ji‐Won Choi Geon‐Tae Hwang Jun Hee Lee Sanghoon Kim Kee Hoon Kim Wook Jo |
| author_facet | Ji‐Hun Park Jae‐Hyeon Cho Nyun Jong Lee Hyun‐Jae Lee Ju‐Hyeon Lee Geon‐Ju Lee Frederick P. Marlton Motohiro Suzuki Manuel Hinterstein Yoon Seok Oh Ji‐Won Choi Geon‐Tae Hwang Jun Hee Lee Sanghoon Kim Kee Hoon Kim Wook Jo |
| author_sort | Ji‐Hun Park |
| collection | DOAJ |
| description | Abstract Albeit having great potential toward unprecedented type of applications such as magnetoelectric (ME) sensors and memories, practically useful single‐phase multiferroics that show large coupling between ferromagnetism and ferroelectricity at ambient temperatures are still lacking. Here, the discovery of a new type of perovskite ferroelectrics (Pb,M)(Fe1/2Nb1/2)O3 (M = Fe, Co, Ni) is reported with a magnetically‐active metal ion introduced into a cuboctahedrally‐coordinated Pb position, which exhibits enhanced ME coupling owing to the development of simultaneous soft‐ferromagnetism and lone‐pair ferroelectricity persistent above room temperature. These Pb‐site engineered (Pb,M)(Fe1/2Nb1/2)O3 perovskites exhibit a ME coupling coefficient of ≈40–60 ps m−1, a saturated electric polarization of 14–17 µC cm−2 and a saturation magnetization of 0.15–0.3 µB f.u−1. X‐ray absorption spectroscopy combined with first‐principles calculations demonstrates that the induced ferromagnetism originates from the ferromagnetic superexchange interaction coming from ≈90° bonding between the magnetic ions at the Pb site. The present discovery of the enhanced ME coupling in the Pb‐site engineered perovskite ferroelectrics may provide unforeseen opportunities for applying conventional displacive ferroelectricity in the field of spintronics where ferromagnetism is essentially required. |
| format | Article |
| id | doaj-art-ffcd2071545641fd8febd33a5e8ff195 |
| institution | Kabale University |
| issn | 2199-160X |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Electronic Materials |
| spelling | doaj-art-ffcd2071545641fd8febd33a5e8ff1952025-08-20T03:47:49ZengWiley-VCHAdvanced Electronic Materials2199-160X2025-02-01112n/an/a10.1002/aelm.202400370Enhanced Coupling Between Soft Ferromagnetism and Displacive Ferroelectricity in the Pb‐Site Modified PbFe1/2Nb1/2O3Ji‐Hun Park0Jae‐Hyeon Cho1Nyun Jong Lee2Hyun‐Jae Lee3Ju‐Hyeon Lee4Geon‐Ju Lee5Frederick P. Marlton6Motohiro Suzuki7Manuel Hinterstein8Yoon Seok Oh9Ji‐Won Choi10Geon‐Tae Hwang11Jun Hee Lee12Sanghoon Kim13Kee Hoon Kim14Wook Jo15Department of Materials Science and Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of KoreaDepartment of Materials Science and Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of KoreaDepartment of Physics University of Ulsan Ulsan 44610 Republic of KoreaDepartment of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of KoreaDepartment of Materials Science and Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of KoreaDepartment of Materials Science and Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of KoreaCentre for Clean Energy Technology School of Mathematical and Physical Sciences Faculty of Science University of Technology Sydney Sydney New South Wales 2007 AustraliaJapan Synchrotron Radiation Research Institute Sayo Hyogo 679–5198 JapanInstitute for Applied Materials Karlsruhe Institute of Technology (KIT) Haid‐und‐Neu Strasse 7 76131 Karlsruhe GermanyDepartment of Physics Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of KoreaElectronic Materials Center Korea Institute of Science and Technology (KIST) Seoul 02792 Republic of KoreaDepartment of Materials Science and Engineering Pukyong National University Busan 42601 Republic of KoreaDepartment of Energy and Chemical Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of KoreaDepartment of Physics University of Ulsan Ulsan 44610 Republic of KoreaDepartment of Physics and Astronomy CeNSCMR & Institute of Applied Physics Seoul National University Seoul 151–747 Republic of KoreaDepartment of Materials Science and Engineering Ulsan National Institute of Science and Technology (UNIST) Ulsan 44919 Republic of KoreaAbstract Albeit having great potential toward unprecedented type of applications such as magnetoelectric (ME) sensors and memories, practically useful single‐phase multiferroics that show large coupling between ferromagnetism and ferroelectricity at ambient temperatures are still lacking. Here, the discovery of a new type of perovskite ferroelectrics (Pb,M)(Fe1/2Nb1/2)O3 (M = Fe, Co, Ni) is reported with a magnetically‐active metal ion introduced into a cuboctahedrally‐coordinated Pb position, which exhibits enhanced ME coupling owing to the development of simultaneous soft‐ferromagnetism and lone‐pair ferroelectricity persistent above room temperature. These Pb‐site engineered (Pb,M)(Fe1/2Nb1/2)O3 perovskites exhibit a ME coupling coefficient of ≈40–60 ps m−1, a saturated electric polarization of 14–17 µC cm−2 and a saturation magnetization of 0.15–0.3 µB f.u−1. X‐ray absorption spectroscopy combined with first‐principles calculations demonstrates that the induced ferromagnetism originates from the ferromagnetic superexchange interaction coming from ≈90° bonding between the magnetic ions at the Pb site. The present discovery of the enhanced ME coupling in the Pb‐site engineered perovskite ferroelectrics may provide unforeseen opportunities for applying conventional displacive ferroelectricity in the field of spintronics where ferromagnetism is essentially required.https://doi.org/10.1002/aelm.202400370ferroelectricity/ferroelectric oxidesferromagnetism/ferromagnetic oxidesmagnetoelectric couplingmultiferroicssuperexchange interaction |
| spellingShingle | Ji‐Hun Park Jae‐Hyeon Cho Nyun Jong Lee Hyun‐Jae Lee Ju‐Hyeon Lee Geon‐Ju Lee Frederick P. Marlton Motohiro Suzuki Manuel Hinterstein Yoon Seok Oh Ji‐Won Choi Geon‐Tae Hwang Jun Hee Lee Sanghoon Kim Kee Hoon Kim Wook Jo Enhanced Coupling Between Soft Ferromagnetism and Displacive Ferroelectricity in the Pb‐Site Modified PbFe1/2Nb1/2O3 Advanced Electronic Materials ferroelectricity/ferroelectric oxides ferromagnetism/ferromagnetic oxides magnetoelectric coupling multiferroics superexchange interaction |
| title | Enhanced Coupling Between Soft Ferromagnetism and Displacive Ferroelectricity in the Pb‐Site Modified PbFe1/2Nb1/2O3 |
| title_full | Enhanced Coupling Between Soft Ferromagnetism and Displacive Ferroelectricity in the Pb‐Site Modified PbFe1/2Nb1/2O3 |
| title_fullStr | Enhanced Coupling Between Soft Ferromagnetism and Displacive Ferroelectricity in the Pb‐Site Modified PbFe1/2Nb1/2O3 |
| title_full_unstemmed | Enhanced Coupling Between Soft Ferromagnetism and Displacive Ferroelectricity in the Pb‐Site Modified PbFe1/2Nb1/2O3 |
| title_short | Enhanced Coupling Between Soft Ferromagnetism and Displacive Ferroelectricity in the Pb‐Site Modified PbFe1/2Nb1/2O3 |
| title_sort | enhanced coupling between soft ferromagnetism and displacive ferroelectricity in the pb site modified pbfe1 2nb1 2o3 |
| topic | ferroelectricity/ferroelectric oxides ferromagnetism/ferromagnetic oxides magnetoelectric coupling multiferroics superexchange interaction |
| url | https://doi.org/10.1002/aelm.202400370 |
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