Editing Superlattice (section)

== Transport ==

[[File:Sltransport.jpg|300px|right|thumb|Overview of the different standard approaches for superlattice transport]]
The motion of charge carriers in a superlattice is different from that in the individual layers: [[Electron mobility|mobility]] of charge carriers can be enhanced, which is beneficial for high-frequency devices, and specific optical properties are used in [[laser|semiconductor laser]]s.

If an external bias is applied to a conductor, such as a metal or a semiconductor, typically an electric current is generated. The magnitude of this current is determined by the band structure of the material, scattering processes, the applied field strength and the equilibrium carrier distribution of the conductor.

A particular case of superlattices called [[superstripes]] are made of superconducting units separated by spacers. In each miniband the superconducting order parameter, called the superconducting gap, takes different values, producing a multi-gap, or two-gap or multiband superconductivity.

Recently, Felix and Pereira investigated the thermal transport by phonons in periodic<ref>{{cite journal |last1=Felix |first1=Isaac M. |last2=Pereira |first2=Luiz Felipe C. |title=Thermal Conductivity of Graphene-hBN Superlattice Ribbons |journal=Scientific Reports |language=en |doi=10.1038/s41598-018-20997-8 |date=9 February 2018|volume=8 |issue=1 |page=2737 |pmid=29426893 |pmc=5807325 |bibcode=2018NatSR...8.2737F }}</ref> and quasiperiodic<ref>{{cite journal |last1=Felix |first1=Isaac M. |last2=Pereira |first2=Luiz Felipe C. |title=Suppression of coherent thermal transport in quasiperiodic graphene-hBN superlattice ribbons |url=https://www.sciencedirect.com/science/article/abs/pii/S0008622319313375?dgcid=author |journal=Carbon |pages=335–341 |language=en |doi=10.1016/j.carbon.2019.12.090 |date=30 April 2020|volume=160 |arxiv=2001.03072 |bibcode=2020Carbo.160..335F |s2cid=210116531 }}</ref><ref>{{cite journal |last1=Felix |first1=Isaac M. |last2=Pereira |first2=Luiz Felipe C. |title=Thermal conductivity of Thue–Morse and double-period quasiperiodic graphene-hBN superlattices |url=https://www.sciencedirect.com/science/article/abs/pii/S0017931021015623 |journal=International Journal of Heat and Mass Transfer |publisher=Elsevier |pages=122464 |language=en |doi=10.1016/j.ijheatmasstransfer.2021.122464 |date=1 May 2022|volume=186 |bibcode=2022IJHMT.18622464F |s2cid=245712349 |url-access=subscription }}</ref><ref>{{cite thesis |last1=Félix |first1=Isaac de Macêdo |title=Condução de calor em nanofitas quase-periódicas de grafeno-hBN |url=https://repositorio.ufrn.br/handle/123456789/30749 |language=pt-BR |date=4 August 2020|publisher=Universidade Federal do Rio Grande do Norte }}</ref> superlattices of graphene-hBN according to the Fibonacci sequence. They reported that the contribution of coherent thermal transport (phonons like-wave) was suppressed as quasiperiodicity increased.