In physics, a plasmaron is a quasiparticle arising in a system that has strong plasmon-electron interactions. It is a quasiparticle formed by quasiparticle-quasiparticle interactions, since both plasmons and electron holes are collective modes of different kinds. It has recently been observed in graphene and earlier in elemental bismuth.[1][2]


  1. ^ Bostwick; Speck, F.; Seyller, T.; Horn, K.; Polini, M.; Asgari, R.; MacDonald, A. H.; Rotenberg, E.; et al. (2010-05-21). "Observation of Plasmarons in Quasi-Freestanding Doped Graphene". Science. 328 (5981): 999–1002. Bibcode:2010Sci...328..999B. doi:10.1126/science.1186489. hdl:11858/00-001M-0000-0011-2564-C. PMID 20489018.
  2. ^ Riccardo Tediosi; N. P. Armitage; E. Giannini & D. van der Marel (1971-09-13). "Charge Carrier Interaction with a Purely Electronic Collective Mode: Plasmarons and the Infrared Response of Elemental Bismuth". Phys. Rev. Lett. 27 (11): 711–714. arXiv:cond-mat/0701447. Bibcode:2007PhRvL..99a6406T. doi:10.1103/PhysRevLett.99.016406. PMID 17678175.