Strzhemechny, M.A.; Legchenkova, I.V.
(Физика низких температур, 2011)
The spectrum of a helium atom adsorbed on an armchair single-walled carbon nanotube is calculated. It is shown that a helium adatom tunnels over the surface of the nanotube within a band 10 K (for ⁴He) to 14 K (for ³He) ...