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.
- Bostwick et al.; Speck, F.; Seyller, T.; Horn, K.; Polini, M.; Asgari, R.; MacDonald, A. H.; Rotenberg, E. (2010-05-21). "Observation of Plasmarons in Quasi-Freestanding Doped Graphene".
- Riccardo Tediosi, N. P. Armitage, E. Giannini, and D. van der Marel (1971-09-13). "Charge Carrier Interaction with a Purely Electronic Collective Mode: Plasmarons and the Infrared Response of Elemental Bismuth".