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Condensed Matter > Mesoscale and Nanoscale Physics

arXiv:1405.0491 (cond-mat)
[Submitted on 2 May 2014 (v1), last revised 16 Oct 2014 (this version, v2)]

Title:Weyl fermions induced Magnon electrodynamics in Weyl semimetal

Authors:Jimmy A. Hutasoit, Jiadong Zang, Radu Roiban, Chao-Xing Liu
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Abstract:Weyl fermions, which are fermions with definite chiralities, can give rise to anomalous breaking of the symmetry of the physical system which they are a part of. In their (3+1)-dimensional realizations in condensed matter systems, i.e., the so-called Weyl semimetals, this anomaly gives rise to topological electromagnetic response of magnetic fluctuations, which takes the form of non-local interaction between magnetic fluctuations and electromagnetic fields. We study the physical consequences of this non-local interaction, including electric field assisted magnetization dynamics, an extra gapless magnon dispersion, and polariton behaviors that feature "sibling" bands in small magnetic fields.
Comments: 8 pages, 3 figures
Subjects: Mesoscale and Nanoscale Physics (cond-mat.mes-hall); Materials Science (cond-mat.mtrl-sci); Strongly Correlated Electrons (cond-mat.str-el)
Cite as: arXiv:1405.0491 [cond-mat.mes-hall]
  (or arXiv:1405.0491v2 [cond-mat.mes-hall] for this version)
  https://doi.org/10.48550/arXiv.1405.0491
Journal reference: Phys. Rev. B 90, 134409 (2014)
Related DOI: https://doi.org/10.1103/PhysRevB.90.134409

Submission history

From: Jimmy Hutasoit [view email]
[v1] Fri, 2 May 2014 20:00:14 UTC (314 KB)
[v2] Thu, 16 Oct 2014 10:11:43 UTC (316 KB)
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