Quasiclassical Theory of C4-Symmetric Magnetic Order in Disordered Multiband Metals

Maxim Dzero, Maxim Khodas*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

3 Scopus citations


Recent experimental studies performed in the normal state of iron-based superconductors have discovered the existence of the C4-symmetric (tetragonal) itinerant magnetic state. This state can be described as a spin density wave with two distinct magnetic vectors (Formula presented.) and (Formula presented.). Given an itinerant nature of magnetism in iron-pnictides, we develop a quasiclassical theory of tetragonal magnetic order in disordered three-band metal with anisotropic band structure. Within our model we find that the C4-symmetric magnetism competes with the C2-symmetric state with a single (Formula presented.) magnetic structure vector. Our main results is that disorder promotes tetragonal magnetic state which is in agreement with earlier theoretical studies.

Original languageAmerican English
Article number356
JournalFrontiers in Physics
StatePublished - 8 Sep 2020

Bibliographical note

Publisher Copyright:
© Copyright © 2020 Dzero and Khodas.


  • 74.20.Rp
  • 74.45. c
  • 74.50. r
  • magnetism
  • multiband electronic systems
  • pnictide
  • spin-density-wave order
  • superconducitivity


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