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He4 on a Single Graphene Sheet

Autor
Gordillo, M. C.; Boronat, J.
Tipus d'activitat
Article en revista
Revista
Physical review letters
Data de publicació
2009-02
Volum
102
Número
8
Pàgina inicial
1
Pàgina final
1
DOI
https://doi.org/10.1103/PhysRevLett.102.085303 Obrir en finestra nova
Resum
The phase diagram of the first layer of He4 adsorbed on a single graphene sheet has been calculated by a series of diffusion Monte Carlo calculations including corrugation effects. Since the number of C-He interactions is smaller than in graphite, the binding energy of He4 atoms to graphene is reduced approximately 13.4 K per helium atom. Our results indicate that the phase diagram is qualitatively similar to that of helium on top of graphite. A two-dimensional liquid film on graphene is predict...
Paraules clau
Films, Boson Systems, Superfluidity In Solid 4he, Supersolid 4he, Other Topics In Structure, And Nonelectronic Properties Of Surfaces And Interfaces, Thin Films And Low-dimensional Structures
Grup de recerca
SIMCON - Grup de Recerca de Simulació per Ordinador en Matèria Condensada

Participants