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- W2804080306 abstract "We show that the two-dimensional spatial-inversion-symmetry (SIS) broken square-lattice antiferromagnet with easy-plane spin anisotropy exhibits a thermal Hall effect and the edge modes characterized by the ${mathbb{Z}}_{2}$ topological invariant. These topological properties require a nonzero Berry curvature, and its origin is ascribed to the Dzyaloshinskii-Moriya (DM) interactions or the noncoplanar magnetic ordering generating a U(1) gauge field that couples to the kinetic motion of magnons. Although this picture is established in ferromagnets on the kagome and pyrochlore lattices, it does not apply to our square-lattice model since such gauge field cancels out in an edge-shared geometry. Instead, our case has an analogy with the anomalous Hall effect of Rashba electronic system where the spin-orbit coupling generates an SU(2) gauge field. The two species of magnons defined on antiferromagnetic sublattices can be regarded as the pseudospin degrees of freedom of magnons. The DM interactions that emerge due to the SIS breaking serve as a pseudo-spin-orbit coupling of magnons and generate a Berry curvature, when the direction of the magnetic moments is properly controlled by the magnetic field. The thermal Hall conductivity of our antiferromagnet shows rapid growth in temperature $T$ beyond the power law, reflecting the almost gapless low-energy branch of the antiferromagnet, which distinctively differs from the ${T}^{7/2}$ dependence in the pyrochlore ferromagnets. The present system serves as a standard model for the noncentrosymmetric crystals ${mathrm{Ba}}_{2}{mathrm{MnGe}}_{2}{mathrm{O}}_{7}$ and ${mathrm{Ba}}_{2}{mathrm{CoGe}}_{2}{mathrm{O}}_{7}$." @default.
- W2804080306 created "2018-06-01" @default.
- W2804080306 creator A5046460991 @default.
- W2804080306 creator A5056916344 @default.
- W2804080306 date "2019-02-20" @default.
- W2804080306 modified "2023-10-09" @default.
- W2804080306 title "Thermal Hall effect and topological edge states in a square-lattice antiferromagnet" @default.
- W2804080306 cites W1569971950 @default.
- W2804080306 cites W1625874553 @default.
- W2804080306 cites W1779780004 @default.
- W2804080306 cites W1832859668 @default.
- W2804080306 cites W1915380637 @default.
- W2804080306 cites W1963806700 @default.
- W2804080306 cites W1964372735 @default.
- W2804080306 cites W1967531269 @default.
- W2804080306 cites W1970663662 @default.
- W2804080306 cites W1980497508 @default.
- W2804080306 cites W1986726409 @default.
- W2804080306 cites W1990338484 @default.
- W2804080306 cites W1999276332 @default.
- W2804080306 cites W2000890085 @default.
- W2804080306 cites W2001576461 @default.
- W2804080306 cites W2010176106 @default.
- W2804080306 cites W2010315827 @default.
- W2804080306 cites W2012630774 @default.
- W2804080306 cites W2020218125 @default.
- W2804080306 cites W2021630251 @default.
- W2804080306 cites W2035664282 @default.
- W2804080306 cites W2036405286 @default.
- W2804080306 cites W2042535905 @default.
- W2804080306 cites W2044801920 @default.
- W2804080306 cites W2048469514 @default.
- W2804080306 cites W2056990073 @default.
- W2804080306 cites W2057273788 @default.
- W2804080306 cites W2087768785 @default.
- W2804080306 cites W2088081187 @default.
- W2804080306 cites W2110576721 @default.
- W2804080306 cites W2148791748 @default.
- W2804080306 cites W2162229219 @default.
- W2804080306 cites W2179764244 @default.
- W2804080306 cites W2226857920 @default.
- W2804080306 cites W2243368185 @default.
- W2804080306 cites W2301496559 @default.
- W2804080306 cites W2314721056 @default.
- W2804080306 cites W2314915876 @default.
- W2804080306 cites W2317695959 @default.
- W2804080306 cites W2318041489 @default.
- W2804080306 cites W2326261332 @default.
- W2804080306 cites W2393424759 @default.
- W2804080306 cites W2413289638 @default.
- W2804080306 cites W2418124609 @default.
- W2804080306 cites W2465876913 @default.
- W2804080306 cites W2512433145 @default.
- W2804080306 cites W2512738585 @default.
- W2804080306 cites W2515412274 @default.
- W2804080306 cites W2519229664 @default.
- W2804080306 cites W2521705689 @default.
- W2804080306 cites W2557365457 @default.
- W2804080306 cites W2558749047 @default.
- W2804080306 cites W2560231730 @default.
- W2804080306 cites W2565621700 @default.
- W2804080306 cites W2566736930 @default.
- W2804080306 cites W2578781445 @default.
- W2804080306 cites W2581765449 @default.
- W2804080306 cites W2584236351 @default.
- W2804080306 cites W2606546309 @default.
- W2804080306 cites W2613666757 @default.
- W2804080306 cites W2625930149 @default.
- W2804080306 cites W2726830693 @default.
- W2804080306 cites W2735806552 @default.
- W2804080306 cites W2736609056 @default.
- W2804080306 cites W2737411721 @default.
- W2804080306 cites W2751770864 @default.
- W2804080306 cites W2757463342 @default.
- W2804080306 cites W2771903457 @default.
- W2804080306 cites W2783058292 @default.
- W2804080306 cites W2784290494 @default.
- W2804080306 cites W2790785861 @default.
- W2804080306 cites W2797117414 @default.
- W2804080306 cites W2963493280 @default.
- W2804080306 cites W3101512724 @default.
- W2804080306 cites W3101872589 @default.
- W2804080306 cites W3103136490 @default.
- W2804080306 cites W3104141680 @default.
- W2804080306 cites W3104312093 @default.
- W2804080306 cites W3104702595 @default.
- W2804080306 cites W3105221398 @default.
- W2804080306 cites W3106103135 @default.
- W2804080306 doi "https://doi.org/10.1103/physrevb.99.054422" @default.
- W2804080306 hasPublicationYear "2019" @default.
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