Magnetoelectric phenomena in Fe langasites
文献类型：期刊论文
| 作者 | Tikhanovskii, A. Yu.2,3; Ivanov, V. Yu.2; Kuzmenko, A. M.2,4; Balbashov, A. M.; Wang, Z.1,5 ; Skumryev, V.6,7; Mukhin, A. A.2
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| 刊名 | PHYSICAL REVIEW B
 |
| 出版日期 | 2022-03-25 |
| 卷号 | 105 |
| ISSN号 | 2469-9950 |
| DOI | 10.1103/PhysRevB.105.104424 |
| 通讯作者 | Tikhanovskii, A. Yu.(tikhanovskii@phystech.edu) |
| 英文摘要 | Experimental and theoretical studies of the magnetoelectric properties of a series of Fe langasite multiferroics (Ba3NbFe3Si2O14, Ba3TaFe3Si2O14, and Sr3TaFe3Si2O14) with planar triangular spiral magnetic structure and double chiral magnetic order have been carried out. Magnetic field induced electric polarization is observed to emerge in the basal ab??? plane of the trigonal crystal, depending on both the magnitude (up to 60 T) and orientation of the magnetic field. Remarkably, the induced polarization is very sensitive to the projection of the field onto the c axis, with a sharp increase in polarization found for small deviations of the field from the basal plane and the sign of polarization determined by the direction of the field deviation. At high magnetic fields, the electric polarization behavior changes qualitatively and strongly depends on the magnetic field orientation. A detailed group theoretical analysis of the magnetic and magnetoelectric properties of Fe langasites is presented, and a relationship between the polarization and magnetic order parameters in an external magnetic field is established. We show that, in a magnetic field, the spiral magnetic structure is rotated and canted with respect to the original structure under zero field. The competition between these two processes, rotation and canting, strongly depends on the magnetic field orientation, and determines the polarization behavior. We propose a simplified description of the Fe langasites??? triangular spiral magnetic structure at low temperatures and with saturated moments, characterized by the spiral plane orientation and the field-induced magnetization only. We establish that, at weak fields, the appearance of polarization occurs mainly due to the reorientation of the magnetic spiral (analogous to a spin-flop transition) and could be explained by the inverse Dzyaloshinskii-Moriya interaction. At high fields (above 8 T), the polarization change occurs via canting of the magnetic spiral, owing to Fe-Fe exchange and single-ion contributions. |
| WOS关键词 | SINGLE-CRYSTALS ; CZOCHRALSKI GROWTH ; BA3NBFE3SI2O14 ; MULTIFERROICS ; MODULATION |
| 资助项目 | HLD at HZDR ; Russian Science Foundation[16-12-10531] |
| WOS研究方向 | Materials Science ; Physics |
| 语种 | 英语 |
| WOS记录号 | WOS:000803018700004 |
| 出版者 | AMER PHYSICAL SOC |
| 资助机构 | HLD at HZDR ; Russian Science Foundation |
| 源URL | [http://ir.hfcas.ac.cn:8080/handle/334002/131181]  |
| 专题 | 中国科学院合肥物质科学研究院 |
| 通讯作者 | Tikhanovskii, A. Yu. |
| 作者单位 | 1.Helmholtz Zentrum, Hochfeld Magnetlabor Dresden, D-01314 Dresden, Germany 2.Russian Acad Sci, Prokhorov Gen Phys Inst, Moscow 119991, Russia 3.Moscow Inst Phys & Technol, Dolgoprudnyi, Moscow Region, Russia 4.Moscow Power Engn Inst, Moscow 111250, Russia 5.Chinese Acad Sci, High Magnet Field Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Peoples R China 6.Univ Autonoma Barcelona, Dept Fis, Barcelona 08193, Spain 7.Inst Catalana Recerca & Estudis Avancats, Barcelona 08010, Spain |
| 推荐引用方式 GB/T 7714 | Tikhanovskii, A. Yu.,Ivanov, V. Yu.,Kuzmenko, A. M.,et al. Magnetoelectric phenomena in Fe langasites[J]. PHYSICAL REVIEW B,2022,105. |
| APA | Tikhanovskii, A. Yu..,Ivanov, V. Yu..,Kuzmenko, A. M..,Balbashov, A. M..,Wang, Z..,...&Mukhin, A. A..(2022).Magnetoelectric phenomena in Fe langasites.PHYSICAL REVIEW B,105. |
| MLA | Tikhanovskii, A. Yu.,et al."Magnetoelectric phenomena in Fe langasites".PHYSICAL REVIEW B 105(2022). |
入库方式： OAI收割
来源：合肥物质科学研究院
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