Slave-boson calculations on the checkerboard Hubbard model show altermagnons crossing from chirality-selective dissipation to coherent but deformed chiral branches at the metal-insulator transition.
From (S3.5), summing the number terms over all NN bonds, X ⟨ij⟩ a† i ai = X i∈A X j∈NN(i) 1 a† i ai =z 1 X i∈A a† i ai, z 1 = 4,(S3.8) and analogouslyP ⟨ij⟩ b† jbj = 4P j∈B b† jbj
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Altermagnons at the metal-insulator transition
Slave-boson calculations on the checkerboard Hubbard model show altermagnons crossing from chirality-selective dissipation to coherent but deformed chiral branches at the metal-insulator transition.