We study high harmonic generation in altermagnetic metals with and without spin-orbit coupling. The altermagnetism manifests itself in the magnetic field dependence of the low harmonics associated with intra-band dynamics. Spin-orbit coupling leads to additional higher energy peaks and plateau structures originating from inter-band transitions. While the pure altermagnet or spin-orbit system exhibits no circular dichroism in the high-harmonic response, an altermagnetic system with spin-orbit coupling shows such a dichroism. We also analyze the spin currents and their high harmonic spectrum.
Spin-polarized electron transport for the altermagnet CrSb
Institute of Solid State Physics of the Russian Academy of Sciences（俄罗斯科学院固体物理研究所）；V.L. Ginzburg Research Centre for High-Temperature Superconductivity and Quantum Materials, P.N. Lebedev Physical Institute of RAS（俄罗斯科学院P.N.列别杰夫物理研究所V.L.金兹堡高温超导与量子材料研究中心）
Third-order and fifth-order nonlinear spin-current generation in $g$-wave and $i$-wave altermagnets, and perfectly nonreciprocal spin-current in $f$-wave magnets
Pure Spin Photocurrent in Altermagnetic Photovoltaic Battery
Hubei Minzu University（湖北民族大学）；Singapore University of Technology and Design（新加坡科技设计大学）；Peking University（北京大学）；Tiangong University（天津工业大学）；Zhejiang University of Technology（浙江工业大学）；Northwest A&F University（西北农林科技大学）
Crystal Symmetry Selected Pure Spin Photocurrent in Altermagnetic Insulators
School of Physics, Beijing Institute of Technology（北京理工大学物理学院）；Key Lab of Advanced Optoelectronic Quantum Architecture and Measurement (Ministry of Education), Beijing Institute of Technology（北京理工大学先进光电子量子架构与测量教育部重点实验室）；Shenzhen Institute for Quantum Science and Engineering and Department of Physics, Southern University of Science and Technology（南方科技大学量子科学工程研究院及物理系）
D-Wave Phonon Angular Momentum Texture in Altermagnets by Magnon-Phonon Hybridization
Institute of Physics, Martin Luther University Halle-Wittenberg and Halle-Berlin-Regensburg Cluster of Excellence “Center for Chiral Electronics”（马丁·路德哈雷-维滕贝格大学物理研究所）；Institute of Physics, Otto von Guericke University Magdeburg（奥托·冯·格里克马格德堡大学物理研究所）；Institute of Solid State Theory, University of Münster（明斯特大学固体理论研究所）；Institute of Physics, Johannes Gutenberg University Mainz（约翰内斯·古腾堡美因茨大学物理研究所）
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）
Chiral dual spin currents field-free perpendicular switching by altermagnet RuO2
Institute of Semiconductors, Chinese Academy of Sciences（中国科学院半导体研究所）；University of Chinese Academy of Sciences（中国科学院大学）；Fert Beijing Institute, MIIT Key Laboratory of Spintronics, School of Integrated Circuit Science and Engineering, Beihang University（北京航空航天大学集成电路科学与工程学院，微电子器件与集成教育部重点实验室（注：Fert Beijing Institute 通常指冯·贝特曼北京研究院，MIIT Key Laboratory of Spintronics 为工业和信息化部自旋电子学重点实验室，School of Integrated Circuit Science and Engineering 为集成电路科学与工程学院，Beihang University 为北京航空航天大学））；Southwest Institute of Technical Physics（西南技术物理研究所）
One-dimensional electronics with edge states in two-dimensional altermagnets
Singapore University of Technology and Design（新加坡科技设计大学）；Peking University（北京大学）；University of Wollongong（伍伦贡大学）；National University of Singapore（新加坡国立大学）
Angle-Dependent Magnetoresistance Induced by Interface-Generated Spin Current in RuO$_2$/Permalloy Heterostructures
Institute of Physics, Johannes Gutenberg-University Mainz（美因茨约翰内斯·古腾堡大学物理研究所）；Department of Physics, Indiana University（印第安纳大学物理系）；Center for Spinelectronic Materials and Devices, Department of Physics, Bielefeld University（比勒费尔德大学自旋电子材料与器件中心）；Department of Physics, Center for Quantum Spintronics, Norwegian University of Science and Technology（挪威科技大学量子自旋电子学中心物理系）
