Magnetic transitions in the topological magnon insulator Cu(1,3-bdc)

  title={Magnetic transitions in the topological magnon insulator Cu(1,3-bdc)},
  author={Robin Chisnell and Joel S. Helton and Danna E. Freedman and Dheeraj Kumar Singh and Franz Demmel and C. Stock and Daniel G. Nocera and Y S Lee},
  journal={Physical Review B},
Topological magnon insulators are a new class of magnetic materials that possess topologically nontrivial magnon bands. As a result, magnons in these materials display properties analogous to those of electrons in topological insulators. Here, we present magnetization, specific heat, and neutron scattering measurements of the ferromagnetic kagome magnet Cu(1,3-bdc). Our measurements provide a detailed description of the magnetic structure and interactions in this material, and confirm that it… 

Evidence of Magnon-Mediated Orbital Magnetism in a Quasi-2D Topological Magnon Insulator.

We explore spin dynamics in Cu(1,3-bdc), a quasi-2D topological magnon insulator. The results show that the thermal evolution of the Landé g factor (g) is anisotropic: gin-plane decreases while

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Synthetic investigation of competing magnetic interactions in 2D metal–chloranilate radical frameworks†

The synthesis and magnetic characterization of a new 2,5-dihydroxy-1,4-benzoquinone based material, (NMe2H2)3.5Ga2(C6O4Cl2)2, which features radical-based electronic spins on the sites of a kagomé lattice, a geometric lattice known to engender exotic electronic properties.

Topological magnetic excitations

Topological properties play an increasingly important role in future research and technology. This also applies to the field of topological magnetic excitations which has recently become a very



Neutron Scattering with a Triple-Axis Spectrometer: Basic Techniques

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  • 297
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  • 85, 532
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  • 772
  • 2009