Spin polarization engineering in $d$-wave altermagnets
Georgetown University(乔治城大学);Max Planck Institute for the Physics of Complex Systems(马克斯·普朗克复杂系统物理研究所);Uppsala University(乌普萨拉大学);Center for Quantum Spintronics, Department of Physics, Norwegian University of Science and Technology(挪威科技大学物理系量子自旋电子学中心);Max Planck Institute for Chemical Physics of Solids(马克斯·普朗克固体化学物理研究所);Institute of Physics, Czech Academy of Sciences(捷克科学院物理研究所)
Mohsen Yarmohammadi, Marco Berritta, Marin Bukov, Libor Šmejkal, Jacob Linder, Peter M. Oppeneer
Altermagnets host unconventional spin-polarized bands despite zero net magnetization, but controlling their spin structure remains challenging. We propose a multi-field approach to engineer spin polarization in $d$-wave altermagnets using gating, optical driving, and in-plane electric fields, which enable tunable and switchable polarizations along multiple directions. Optical driving induces out-of-plane ($z$) polarization, while gating and in-plane fields generate $x$- and $y$-polarizations via the Edelstein effect, all of which are experimentally detectable. We further find that spin- and band-selective doping induces chiral optical activity, a feature unique to altermagnets. Our approach provides a versatile route for full control of spin polarization in altermagnets.
Generating ferro-spinetic polarizations in altermagnetic insulators
Institute for Theoretical Solid State Physics, IFW Dresden(德累斯顿工业大学理论固态物理研究所);Würzburg-Dresden Cluster of Excellence ct.qmat(维尔茨堡-德累斯顿卓越集群 ct.qmat);Centro Atómico Bariloche, Instituto de Nanociencia y Nanotecnología and Instituto Balseiro(巴里洛切原子中心、纳米科学与纳米技术研究所和巴尔塞罗研究所);CNR-SPIN, Department of Physical and Chemical Sciences, University of L’Aquila(拉奎拉大学物理与化学科学系意大利国家研究委员会自旋物理研究所);Institut für Theoretische Physik und Astrophysik, Universität Würzburg(维尔茨堡大学理论物理与天体物理研究所)
Engineering Altermagnetism via Layer Shifts and Spin Order in Bilayer MnPS$_3$
Universidad de Antofagasta(安托法加斯塔大学);Technische Universität Dresden(德累斯顿工业大学);Universidad Técnica Federico Santa María(费德里科·圣塔玛丽亚技术大学);Universidad de Chile(智利大学);Dresden University of Technology, Institute for Solid State and Materials Physics(德累斯顿工业大学固体与材料物理研究所)
Realizing Two-Dimensional Altermagnets with 100% Spin Polarization along the [110] Direction in Ambidentate-Ligand Based Square Organometallic Lattices
Wuhan Institute of Technology(武汉工程大学);University of Science and Technology of China(中国科学技术大学)
Altermagnetic type-II Multiferroics with Néel-order-locked Electric Polarization
National Laboratory of Solid State Microstructures, School of Physics, Nanjing University(南京大学固体微结构物理学院);Jiangsu Key Laboratory of Artificial Functional Materials and Department of Materials Science and Engineering,Nanjing University(南京大学材料科学与工程系);Collaborative Innovation Center of Advanced Microstructures, Nanjing University(南京大学先进微结构协同创新中心);Center for Quantum Transport and Thermal Energy Science, School of Physics and Technology, Nanjing Normal University(南京师范大学物理科学与技术学院)
All optical excitation of spin polarization in d-wave altermagnets
RPTU University Kaiserslautern-Landau(凯泽斯劳滕-兰道 RPTU 大学);Johannes Gutenberg University Mainz(美因茨约翰内斯·古腾堡大学);Universidade de Santiago de Compostela(圣地亚哥-德孔波斯特拉大学);Tohoku University(东北大学)
Max Planck Institute for the Physics of Complex Systems(马克斯·普朗克复杂系统物理研究所);Institute of Physics, Czech Academy of Sciences(捷克科学院物理研究所);Max Planck Institute for Chemical Physics of Solids(马克斯·普朗克固体化学物理研究所)
Strain-induced valley polarization, topological states, and piezomagnetism in two-dimensional altermagnetic V$_2$Te$_2$O, V$_2$STeO, V$_2$SSeO, and V$_2$S$_2$O
Strain-Tunable Shift Current and Magneto-Optical Kerr Effect in Multiferroic Altermagnet Fe2Mo3O8
Jilin University(吉林大学);Suzhou Laboratory(苏州实验室);Institute of Materials Science, Technology University of Darmstadt(达姆施塔特工业大学材料科学研究所);University of Salzburg(萨尔茨堡大学);College of Physics, Jilin University(吉林大学物理学院)
All-electrically controlled spintronics in altermagnetic heterostructures
School of Science, Sun Yat-sen University(中山大学科学学院);School of Physics and Materials Science, Guangzhou University(广州大学物理与材料科学学院);School of Humanities and Basic Sciences, Shenzhen Institute of Information Technology(深圳信息职业技术学院人文基础学院);Institute of Materials, Ningbo University of Technology(宁波工程学院材料研究所);Department of Physics and Astronomy, Uppsala University(乌普萨拉大学物理与天文学系)