The Hard Ferromagnetism in FePS3 Induced by Non‐Magnetic Molecular Intercalation
Abstract Manipulating the magnetic ground states of 2D magnets is a focal point of recent research efforts. Various methods have demonstrated efficacy in modulating the magnetic properties inherent to van der Waals (vdW) magnetic systems. Herein, the emergence of robust anisotropic ferromagnetism wi...
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| Format: | Article |
| Language: | English |
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Wiley-VCH
2025-02-01
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| Series: | Advanced Physics Research |
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| Online Access: | https://doi.org/10.1002/apxr.202400101 |
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| author | Yunbo Ou Xiaoyin Li Jan Kopaczek Austin Davis Gigi Jackson Mohammed Sayyad Feng Liu Seth Ariel Tongay |
| author_facet | Yunbo Ou Xiaoyin Li Jan Kopaczek Austin Davis Gigi Jackson Mohammed Sayyad Feng Liu Seth Ariel Tongay |
| author_sort | Yunbo Ou |
| collection | DOAJ |
| description | Abstract Manipulating the magnetic ground states of 2D magnets is a focal point of recent research efforts. Various methods have demonstrated efficacy in modulating the magnetic properties inherent to van der Waals (vdW) magnetic systems. Herein, the emergence of robust anisotropic ferromagnetism within antiferromagnetic FePS3 is unveiled via intercalation with non‐magnetic pyridinium ions. A one‐step ion exchange reaction facilitates the formation of energetically favorable B‐phase and metastable P‐phase. Notably, both B‐ and P‐phases manifest hard ferromagnetic behavior, featuring substantial unsaturated coercive fields (>7 T) and high Curie temperatures (72–87 K). First‐principles calculations elucidate the pivotal role of electron transfer from pyridinium ions to FePS3 in engineering magnetic exchange interactions. Calculated effective spin Hamiltonian corroborates the observed hard ferromagnetism in intercalated FePS3. This study offers crucial insights into hard magnetism in intercalated vdW materials, thereby presenting promising avenues for 2D vdW magnet‐based magnetic devices. |
| format | Article |
| id | doaj-art-bfbc3645ac574ccf8f96d82320730c76 |
| institution | DOAJ |
| issn | 2751-1200 |
| language | English |
| publishDate | 2025-02-01 |
| publisher | Wiley-VCH |
| record_format | Article |
| series | Advanced Physics Research |
| spelling | doaj-art-bfbc3645ac574ccf8f96d82320730c762025-08-20T02:59:47ZengWiley-VCHAdvanced Physics Research2751-12002025-02-0142n/an/a10.1002/apxr.202400101The Hard Ferromagnetism in FePS3 Induced by Non‐Magnetic Molecular IntercalationYunbo Ou0Xiaoyin Li1Jan Kopaczek2Austin Davis3Gigi Jackson4Mohammed Sayyad5Feng Liu6Seth Ariel Tongay7Materials Science and Engineering School for Engineering of Matter Transport and Energy Arizona State University Tempe Arizona 85287 USADepartment of Materials Science and Engineering University of Utah Salt Lake City Utah 84112 USAMaterials Science and Engineering School for Engineering of Matter Transport and Energy Arizona State University Tempe Arizona 85287 USAMaterials Science and Engineering School for Engineering of Matter Transport and Energy Arizona State University Tempe Arizona 85287 USAMaterials Science and Engineering School for Engineering of Matter Transport and Energy Arizona State University Tempe Arizona 85287 USAMaterials Science and Engineering School for Engineering of Matter Transport and Energy Arizona State University Tempe Arizona 85287 USADepartment of Materials Science and Engineering University of Utah Salt Lake City Utah 84112 USAMaterials Science and Engineering School for Engineering of Matter Transport and Energy Arizona State University Tempe Arizona 85287 USAAbstract Manipulating the magnetic ground states of 2D magnets is a focal point of recent research efforts. Various methods have demonstrated efficacy in modulating the magnetic properties inherent to van der Waals (vdW) magnetic systems. Herein, the emergence of robust anisotropic ferromagnetism within antiferromagnetic FePS3 is unveiled via intercalation with non‐magnetic pyridinium ions. A one‐step ion exchange reaction facilitates the formation of energetically favorable B‐phase and metastable P‐phase. Notably, both B‐ and P‐phases manifest hard ferromagnetic behavior, featuring substantial unsaturated coercive fields (>7 T) and high Curie temperatures (72–87 K). First‐principles calculations elucidate the pivotal role of electron transfer from pyridinium ions to FePS3 in engineering magnetic exchange interactions. Calculated effective spin Hamiltonian corroborates the observed hard ferromagnetism in intercalated FePS3. This study offers crucial insights into hard magnetism in intercalated vdW materials, thereby presenting promising avenues for 2D vdW magnet‐based magnetic devices.https://doi.org/10.1002/apxr.202400101antiferromagnetismgiant coercive fieldhard ferromagnetismmolecule intercalationvan der Waals crystal |
| spellingShingle | Yunbo Ou Xiaoyin Li Jan Kopaczek Austin Davis Gigi Jackson Mohammed Sayyad Feng Liu Seth Ariel Tongay The Hard Ferromagnetism in FePS3 Induced by Non‐Magnetic Molecular Intercalation Advanced Physics Research antiferromagnetism giant coercive field hard ferromagnetism molecule intercalation van der Waals crystal |
| title | The Hard Ferromagnetism in FePS3 Induced by Non‐Magnetic Molecular Intercalation |
| title_full | The Hard Ferromagnetism in FePS3 Induced by Non‐Magnetic Molecular Intercalation |
| title_fullStr | The Hard Ferromagnetism in FePS3 Induced by Non‐Magnetic Molecular Intercalation |
| title_full_unstemmed | The Hard Ferromagnetism in FePS3 Induced by Non‐Magnetic Molecular Intercalation |
| title_short | The Hard Ferromagnetism in FePS3 Induced by Non‐Magnetic Molecular Intercalation |
| title_sort | hard ferromagnetism in feps3 induced by non magnetic molecular intercalation |
| topic | antiferromagnetism giant coercive field hard ferromagnetism molecule intercalation van der Waals crystal |
| url | https://doi.org/10.1002/apxr.202400101 |
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