Sub-terahertz amplification in a semiconductor superlattice with moving charge domains

Makarov, V.V.; Hramov, A.E.; Koronovskii, A.A.; Alekseev, K.N.; Maximenko, V.A.; Greenaway, M.T.; Fromhold, T.M.; Moskalenko, O.I.; Balanov, A.G.

doi:10.1063/1.4906531

All Outputs (3)

Resonant tunnelling between the chiral Landau states of twisted graphene lattices (2015)
Journal Article
Greenaway, M., Vdovin, E. E., Mishchenko, A., Makarovsky, O., Patanè, A., Wallbank, J., …Eaves, L. (2015). Resonant tunnelling between the chiral Landau states of twisted graphene lattices. Nature Physics, 11(12), 1057-1062. https://doi.org/10.1038/nphys3507

A class of multilayered functional materials has recently emerged in which the component atomic layers are held together by weak van der Waals forces that preserve the structural integrity and physical properties of each layer. An exemplar of such a... Read More about Resonant tunnelling between the chiral Landau states of twisted graphene lattices.

Graphene-hexagonal boron nitride resonant tunneling diodes as high-frequency oscillators (2015)
Journal Article
Gaskell, J., Eaves, L., Novoselov, K., Mishchenko, A., Geim, A., Fromhold, T., & Greenaway, M. (2015). Graphene-hexagonal boron nitride resonant tunneling diodes as high-frequency oscillators. Applied Physics Letters, 107(10), Article 103105. https://doi.org/10.1063/1.4930230

We assess the potential of two-terminal graphene-hexagonal boron nitride-graphene resonant tunneling diodes as high-frequency oscillators, using self-consistent quantum transport and electrostatic simulations to determine the time-dependent response... Read More about Graphene-hexagonal boron nitride resonant tunneling diodes as high-frequency oscillators.

Sub-terahertz amplification in a semiconductor superlattice with moving charge domains (2015)
Journal Article
Makarov, V., Hramov, A., Koronovskii, A., Alekseev, K., Maximenko, V., Greenaway, M., …Balanov, A. (2015). Sub-terahertz amplification in a semiconductor superlattice with moving charge domains. Applied Physics Letters, 106(4), Article 043503. https://doi.org/10.1063/1.4906531

We theoretically study the high-frequency response of charge domains traveling through a strongly coupled semiconductor superlattice with an applied harmonic electromagnetic signal. Our calculations show that the superlattice alone can amplify signal... Read More about Sub-terahertz amplification in a semiconductor superlattice with moving charge domains.