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Evolution of magnet...
Evolution of magnetic Dirac bosons in a honeycomb lattice
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Boyko, D. (författare)
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- Balatsky, Alexander V. (författare)
- Stockholms universitet,KTH,Nordic Institute for Theoretical Physics NORDITA,Los Alamos National Laboratory, United States,Nordiska institutet för teoretisk fysik (Nordita),Los Alamos National Laboratory, USA
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Haraldsen, J. T. (författare)
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(creator_code:org_t)
- American Physical Society, 2018
- 2018
- Engelska.
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Ingår i: Physical Review B. - : American Physical Society. - 2469-9950 .- 2469-9969. ; 97:1
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- We examine the presence and evolution of magnetic Dirac nodes in the Heisenberg honeycomb lattice. Using linear spin theory, we evaluate the collinear phase diagram as well as the change in the spin dynamics with various exchange interactions. We show that the ferromagnetic structure produces bosonic Dirac and Weyl points due to the competition between the interactions. Furthermore, it is shown that the criteria for magnetic Dirac nodes are coupled to the magnetic structure and not the overall crystal symmetry, where the breaking of inversion symmetry greatly affects the antiferromagnetic configurations. The tunability of the nodal points through variation of the exchange parameters leads to the possibility of controlling Dirac symmetries through an external manipulation of the orbital interactions.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
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