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Optical investigation of the strong spin-orbit-coupled magnetic semimetal YbMnBi 2
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Landau-Zener transition in a two-level system coupled to a single highly excited oscillator
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Prediction of a magnetic Weyl semimetal without spin-orbit coupling and strong anomalous Hall effect in the Heusler compensated ferrimagnet Ti 2 MnAl
We predict a magnetic Weyl semimetal in the inverse Heusler Ti 2 MnAl, a compensated ferrimagnet with a vanishing net magnetic moment and a Curie temperature of over 650 K. Despite the vanishing net magnetic moment, we calculate a large intrinsic anomalous Hall effect (AHE) of about 300 S/cm. It derives from the Berry curvature distribution of the Weyl points, which are only 14 meV away from the Fermi level and isolated from trivial bands. Different from antiferromagnets Mn 3 X (X=Ge, Sn, Ga, Ir, Rh, and Pt), where the AHE originates from the noncollinear magnetic structure, the AHE in Ti 2 MnAl stems directly from the Weyl points and is topologically protected. The large anomalous Hall conductivity (AHC) together with a low charge carrier concentration should give rise to a large anomalous Hall angle. In contrast to the Co-based ferromagnetic Heusler compounds, the Weyl nodes in Ti 2 MnAl do not derive from nodal lines due to the lack of mirror symmetries in the inverse Heusler structure. Since the magnetic structure breaks spin-rotation symmetry, the Weyl nodes are stable without SOC. Moreover, because of the large separation between Weyl points of opposite topological charge, the Fermi arcs extent up to 75% of the reciprocal lattice vectors in length. Furthermore, this makes Ti 2 MnAl an excellent candidate for the comprehensive study of magnetic Weyl semimetals. It is the first example of a material with Weyl points, large anomalous Hall effect, and angle despite a vanishing net magnetic moment.
Dzyaloshinskii-Moriya interaction in the presence of Rashba and Dresselhaus spin-orbit coupling
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Revealing weak spin-orbit coupling effects on charge carriers in a π -conjugated polymer
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Spinful Aubry-André model in a magnetic field: Delocalization facilitated by a weak spin-orbit coupling
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Nematic phase in a two-dimensional Hubbard model at weak coupling and finite temperature
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Anomalous coupling between magnetic and nematic orders in quantum Hall systems
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Tunneling spectroscopy of graphene nanodevices coupled to large-gap superconductors
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Coupling of the Poton-Hole and Neutron-Particle States in the Neutron-rRch 48K Isotope
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SU(3)-flavor breaking in octet baryon masses and axial couplings
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Combining symmetry collective states with coupled-cluster theory: Lessons from the Agassi model Hamiltonian
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