2018/01/31 by Di Wei, Di. S. Wei, Toeno van der Sar +5
Materials Science · Physics and Astronomy · #Condensed matter physics #Electron #Ferromagnetism #Graphene #Graphene research and applications #Magnetic field #Magnetic properties of thin films #Magnon #Physics #Quantum Hall effect #Quantum and electron transport phenomena #Quantum mechanics #Spin (aerodynamics) #Spin wave #cond-mat.mes-hall
paper · pdf · doi:10.1126/science.aar4061
published as Science 362, 229-233 (2018)
openalex publication_date 2018/10/11 · arxiv created 2018/11/03 · arxiv updated 2018/11/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/06
Magnons propagating in graphene At sufficiently low temperatures, a two-dimensional electron system placed in an external magnetic field can exhibit the so-called quantum Hall effect. In this regime, a variety of magnetic phases may occur, depending on the electron density and other factors. Wei et al. studied the properties of these exotic magnetic phases in graphene. They generated magnons—the excitations of an ordered magnetic system—that were then absorbed by the sample, leaving a mark on its electrical conductance. The magnons were able to propagate across long distances through various magnetic phases in the bulk graphene. Science , this issue p. 229