Design of altermagnetic models from spin clusters

Abstract

Altermagnetism, a new class of collinear compensated magnetic phase, has garnered tremendous interest because of its rich physics and promising applications. Physical models and verified material candidates for altermagnetism remain limited. Here, we propose a general scheme to construct altermagnetic models, which explicitly exhibits the blend of ferromagnetic and antiferromagnetic correlations in real space via the design of spin clusters, echoing the observation that properties of altermagnets resemble a mixture of ferromagnets and antiferromagnets. We show that in some of our models, the desired altermagnetic order can be spontaneously realized by electron-electron interaction in a broad range of the phase diagram. This development facilitates the study of fascinating physics of altermagnetism and sheds light on the discovery of new altermagnetic materials.

6 pages, 5 figures

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Cited by in corpus (13)

• Light-induced Odd-parity Magnetism in Conventional Collinear Antiferromagnets
• Symmetry Classification for Alternating Excitons in Two-Dimensional Altermagnets
• Exploration of Altermagnetism in $\mathrm{Ru}{\mathrm{O}}_2$
• Altermagnetic polarons: the fate of alter magnetic band splittings at strong coupling
• Spin-Polarized Josephson Supercurrent in Nodeless Altermagnets
• Altermagnetism and its induced higher-order topology on the Lieb lattice
• Finite-momentum mixed singlet-triplet pairing in chiral antiferromagnets induced by even-parity spin texture
• Marginal Metals and Kosterlitz-Thouless Type Phase Transition in Disordered Altermagnets
• Josephson effects in the spin-triplet superconductor/altermagnet/spin-triplet superconductor junctions: the detection of the intrinsic $\mathbf{d}$-vector
• Spontaneous emergence of altermagnetism in the single-orbital extended Hubbard model
• Theory of Angle Resolved Photoemission Spectroscopy of Altermagnetic Mott Insulators
• Antiferroaxial altermagnetism
• Spin triplet pairing by suppressing altermagnetism