6533b826fe1ef96bd12852e3
RESEARCH PRODUCT
On the superconductivity of graphite interfaces
Grigory VolovikGrigory VolovikPablo EsquinaziYury LysogorskiyTero T. HeikkiläDmitrii Tayurskiisubject
SuperconductivityHigh-temperature superconductivityMaterials scienceCondensed Matter - Mesoscale and Nanoscale PhysicsPhysics and Astronomy (miscellaneous)Condensed matter physicsCondensed Matter::OtherCondensed Matter - SuperconductivityStackingFOS: Physical sciences02 engineering and technology021001 nanoscience & nanotechnology01 natural scienceslaw.inventionSuperconductivity (cond-mat.supr-con)Line defectsCondensed Matter::Materials SciencelawCondensed Matter::SuperconductivityMesoscale and Nanoscale Physics (cond-mat.mes-hall)0103 physical sciencesGraphiteFlat band010306 general physics0210 nano-technologydescription
We propose an explanation for the appearance of superconductivity at the interfaces of graphite with Bernal stacking order. A network of line defects with flat bands appears at the interfaces between two slightly twisted graphite structures. Due to the flat band the probability to find high temperature superconductivity at these quasi one-dimensional corridors is strongly enhanced. When the network of superconducting lines is dense it becomes effectively two-dimensional. The model provides an explanation for several reports on the observation of superconductivity up to room temperature in different oriented graphite samples, graphite powders as well as graphite-composite samples published in the past.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-07-08 | JETP Letters |