AI 中文总结
该研究设计出兼具铁电性与电荷有序的新型磁体，预测Fe$_3$O$_5$单层可实现电场可控的混合自旋分裂，兼具高自旋极化率与零磁化强度，为新型自旋电子材料提供了新思路。
AI 中文摘要
具有几乎零磁化强度但显著非相对论自旋分裂的非常规共线磁体，如类变磁体，可兼具铁磁体与反铁磁体的优势。通过引入铁电性、电荷有序等更多自由度，这类非常规磁体可实现更丰富的功能。基于此设计原理，Fe$_3$O$_5$单层被预测呈现混合自旋分裂机制，叠加类变磁体的k路径交替分裂与类亚铁磁体的塞曼分裂。得益于基于自旋-电荷耦合的隐式磁电效应，该自旋分裂可通过电场完全切换，其电导率具有高于99%的高自旋极化率，与半金属相当但磁化强度为零。
英文摘要
Unconventional collinear magnets with almost zero magnetization but prominent nonrelativistic spin-splitting, such as altermagnets, can inherit the advantages of both ferromagnets and antiferromagnets. By incorporating more degrees of freedom such as ferroelectricity and charge ordering, these unconventional magnets can be even more interesting and functionalized. With this design principle, the Fe$_3$O$_5$ monolayer is predicted to exhibit a hybrid spin-splitting mechanism, with the superposition of the altermagnetic-like $k$-path alternating splitting and ferrimagnet-like Zeeman splitting. Benefiting from the hidden magnetoelectricity based on the spin-charge coupling, such spin-splitting can be fully switched by an electric field. Its conductivity is highly spin-polarized, with a polarization ratio above $99\%$, comparable to half-metals but with zero magnetization.
Comments5 figures
Journal refJournal of the American Chemical Society 148, 31352-31358 (2026)
