Magnetically induced electric polarization in Ba3Fe2O5Cl2 with tunable direction in three dimensions
| Autor: | Taka-hisa Arima, H. Sagayama, Takashi Ohhara, Akiko Nakao, Yusuke Tokunaga, Nobuyuki Abe, S. Shiozawa, Keisuke Matsuura |
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| Rok vydání: | 2020 |
| Předmět: |
Physics
Condensed matter physics Magnetism Order (ring theory) 02 engineering and technology 021001 nanoscience & nanotechnology Space (mathematics) 01 natural sciences Magnetic susceptibility Magnetic field Polarization density 0103 physical sciences Antiferromagnetism Condensed Matter::Strongly Correlated Electrons Anomaly (physics) 010306 general physics 0210 nano-technology |
| Zdroj: | Physical Review B. 101 |
| ISSN: | 2469-9969 2469-9950 |
| DOI: | 10.1103/physrevb.101.180407 |
| Popis: | The correlation between magnetism and electric polarization in a chiral insulating magnet $\mathrm{B}{\mathrm{a}}_{3}\mathrm{F}{\mathrm{e}}_{2}{\mathrm{O}}_{5}\mathrm{C}{\mathrm{l}}_{2}$ has been investigated. The temperature dependence of magnetic susceptibility shows an anomaly at 564 K, suggesting the onset of antiferromagnetic order of $\mathrm{F}{\mathrm{e}}^{3+}$ moments. Electric polarization appears in a magnetic field below ${T}_{\mathrm{N}}$ due to the spin-direction-dependent metal-ligand hybridization. The direction of the electric polarization can be controlled in three-dimensional space by changing the direction of an external magnetic field. This compound also shows an antiferromagnetic-to-weak-ferromagnetic transition accompanied by a structural phase transition at 140 K. |
| Databáze: | OpenAIRE |
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