The study of magnetic topological semimetals by first principles calculations

Abstract

Magnetic topological semimetals (TSMs) are topological quantum materials with broken time-reversal symmetry (TRS) and isolated nodal points or lines near the Fermi level. Their topological properties would typically reveal from the bulk-edge correspondence principle as nontrivial surface states such as Fermi arcs or drumhead states, etc. Depending on the degeneracies and distribution of the nodes in the crystal momentum space, TSMs are usually classified into Weyl semimetals (WSMs), Dirac semimetals (DSMs), nodal-line semimetals (NLSMs), triple-point semimetals (TPSMs), etc. In this review article, we present the recent advances of magnetic TSMs from a computational perspective. We first review the early predicted magnetic WSMs such as pyrochlore iridates and HgCr2Se4, as well as the recently proposed Heusler, Kagome layers, and honeycomb lattice WSMs. Then we discuss the recent developments of magnetic DSMs, especially CuMnAs in Type-III and EuCd2As2 in Type-IV magnetic space groups (MSGs). Then we introduce some magnetic NLSMs that are robust against spin-orbit coupling (SOC), namely Fe3GeTe2 and LaCl (LaBr). Finally, we discuss the prospects of magnetic TSMs and the interesting directions for future research.

arXiv comment35 pages, 10 figures

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• Discovery of a quantum limit Chern magnet TbMn6Sn6
• Low-frequency divergence and quantum geometry of the bulk photovoltaic effect in topological semimetals
• Quantum states and intertwining phases in kagome materials
• Nanodevices engineering and spin transport properties of MnBi2Te4 monolayer
• Topological classification and diagnosis in magnetically ordered electronic materials
• Magnetic higher-order nodal lines
• Spin Excitations and Spin Wave Gap in the Ferromagnetic Weyl Semimetal Co${}_3$Sn${}_2$S${}_2$
• Subdimensional topologies, indicators and higher order phases
• High-throughput search for magnetic topological materials using spin-orbit spillage, machine-learning and experiments
• Fragile topologically flat band in the checkerboard antiferromagnetic monolayer FeSe
• Magnetism-induced topological transition in EuAs3
• Magnetic Weyl semimetals with diamond structure realized in spinel compounds
• Consecutive topological phase transitions and colossal magnetoresistance in a magnetic topological semimetal
• Kramers nodal lines and Weyl fermions in SmAlSi
• Resonant X-ray scattering study of diffuse magnetic scattering from the topological semimetals EuCd${}_2$As${}_2$ and EuCd${}_2$Sb${}_2$
• Transport, refraction and interface arcs in junctions of Weyl semimetals
• Unusual magnetic and transport properties in HoMn${}_6$Sn${}_6$ kagome magnet
• Topological Phase Transition in a Magnetic Weyl Semimetal
• Magnetic Topological Kagome Systems
• Tunable chirality of noncentrosymmetric magnetic Weyl semimetals
• Coexistence of topological Weyl and nodal-ring states in ferromagnetic and ferrimagnetic double perovskites
• Hidden local symmetry breaking in a kagome-lattice magnetic Weyl semimetal
• Sign-reversed anomalous Nernst effect in the ferromagnetic Weyl-semimetal Fe${}_{3-x}$GeTe${}_2$: the role of Fe vacancies
• Optical activity and transport in twisted bilayer graphene: the essence of spatial dispersion effects
• Origin of the exotic electronic states in antiferromagnetic NdSb
• Large anomalous Hall effect induced by gapped nodal lines in GdZn and GdCd
• Unique surface-state connection between Weyl and nodal ring fermions in ferromagnetic material Cs2MoCl6
• Topological Antiferromagnetic Semimetal for Spintronics: A Case Study of a Layered Square Net System EuZnSb${}_2$
• Long-Time Magnetic Relaxation in Antiferromagnetic Topological Material EuCd${}_2$As${}_2$
• Berry curvature derived negative magnetoconductivity observed in type-II magnetic Weyl semimetal films
• IrF4: From Tetrahedral Compass Model to Topological Semimetal
• Topological Luttinger semimetallic phase accompanied with surface states realized in silicon
• Concurrence of topological electrons and magnons in the Kagome ferromagnet CoCu3(OH)6Cl2
• Chiral anomaly induced magnetoconductances in an irradiated Type-I Weyl Semimetal
• Intrinsic Topological Weyl Phase Transition Induced by a Magnetostructural Transformation in a Kagome Magnet
• Quasi-nodal lines in rhombohedral magnetic materials