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12 papers · 2 filters
Topological kagome magnets and superconductors
Jia-Xin Yin, Biao Lian, M Zahid Hasan
A kagome lattice naturally features Dirac fermions, flat bands and van Hove singularities in its electronic structure. The Dirac fermions encode topology, flat bands favour correla…
Machine learning assisted derivation of effective low energy models for metallic magnets
Vikram Sharma, Zhentao Wang, Cristian D. Batista
We consider the problem of extracting an effective low-energy spin model from a Kondo Lattice Model (KLM) with classical localized moments. The non-analytic dependence of the effec…
A microscopic Kondo lattice model for the heavy fermion antiferromagnet CeIn
W. Simeth, Z. Wang, E. A. Ghioldi +13
Electrons at the border of localization generate exotic states of matter across all classes of strongly correlated electron materials and many other quantum materials with emergent…
Evidence for electronic signature of magnetic transition in topological magnet HoSbTe
Nana Shumiya, Jia-Xin Yin, Guoqing Chang +11
Topological insulators with intrinsic magnetic order are emerging as an exciting platform to realize fundamentally new excitations from topological quantum states of matter. To stu…
Geometric integration of classical spin dynamics via a mean-field Schrödinger equation
David Dahlbom, Hao Zhang, Cole Miles +3
The Landau-Lifshitz equation describes the time-evolution of magnetic dipoles, and can be derived by taking the classical limit of a quantum mechanical spin Hamiltonian. To take th…
CP Skyrmions and Skyrmion Crystals in Realistic Quantum Magnets
Hao Zhang, Zhentao Wang, David Dahlbom +2
Magnetic skyrmions are nanoscale topological textures that have been recently observed in different families of quantum magnets. These textures are known as CP skyrmions becaus…