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Electronic structure of the chiral helimagnet and3d-intercalated transition metal dichalcogenideCr1/3NbS2

  • Author(s): Sirica, N
  • Mo, S-K
  • Bondino, F
  • Pis, I
  • Nappini, S
  • Vilmercati, P
  • Yi, J
  • Gai, Z
  • Snijders, PC
  • Das, PK
  • Vobornik, I
  • Ghimire, N
  • Koehler, MR
  • Li, L
  • Sapkota, D
  • Parker, DS
  • Mandrus, DG
  • Mannella, N
  • et al.
Abstract

©2016 American Physical Society. The electronic structure of the chiral helimagnet Cr1/3NbS2 has been studied with core level and angle-resolved photoemission spectroscopy (ARPES). Intercalated Cr atoms are found to be effective in donating electrons to the NbS2 layers but also cause significant modifications of the electronic structure of the host NbS2 material. In particular, the data provide evidence that a description of the electronic structure of Cr1/3NbS2 on the basis of a simple rigid band picture is untenable. The data also reveal substantial inconsistencies with the predictions of standard density functional theory. The relevance of these results to the attainment of a correct description of the electronic structure of chiral helimagnets, magnetic thin films/multilayers, and transition metal dichalcogenides intercalated with 3d magnetic elements is discussed.

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