Interplay of crystal and magnetic structure in Eu3Al2Ge2 - a complex altermagnet
收藏ESRF Portal2028-01-01 更新2026-04-23 收录
下载链接：
https://doi.esrf.fr/10.15151/ESRF-ES-2261328306
下载链接
链接失效反馈官方服务：
资源简介：
The proposed project complements our investigation on Eu3Al2Ge2 with unconventional magnetism. Eu3Al2Ge2 undergoes two main phase transitions, i.e., at T1 ~ 34 K and T2 ~ 26 K. Our transport measurements revealed the topological Hall effect (THE) in Eu3Al2Ge2, making it a rare case among centrosymmetric magnets. In noncentrosymmetric materials, the Dzyaloshinskii-Moriya interaction (DMI) plays a crucial role in stabilizing the skyrmion phase, which is closely tied to THE. In stark contrast, for centrosymmetric magnets, other mechanisms must account for these phenomena, which is an active area of research. Additionally, our angle-resolved photoemission spectroscopy (ARPES) measurements identified a significant band splitting with a gap of approximately 130 meV. To further investigate the origin of the THE and the large band splitting, we aim to explore the changes in crystal symmetry that occur following magnetic transitions.
提供机构：
MPI-CPfS, Solid State Chemistry, Noethnitzer Strasse 40, 01187 Dresden, Germany; CNRS UMR 6508 / ENSICAEN, Laboratoire CRISMAT, 6 blvd du Marechal Juin, 14050, Caen, FRANCE
创建时间：
2028-01-01
