Van der Waals interaction between microparticle and uniaxial crystal with application to hydrogen atoms and multiwall carbon nanotubes

Journal Article · Wed Jun 15 00:00:00 EDT 2005 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.71.235401· OSTI ID:20719062

Blagov, E V; Mostepanenko, V M ^[1]; Klimchitskaya, G L ^[2]

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1. Noncommercial Partnership 'Scientific Instruments', Tverskaya St. 11, Moscow 103905 (Russian Federation)
2. North-West Technical University, Millionnaya St. 5, St. Petersburg 191065 (Russian Federation)

The Lifshitz theory of the van der Waals force is extended for the case of an atom (molecule) interacting with a plane surface of a uniaxial crystal or with a long solid cylinder or cylindrical shell made of isotropic material or uniaxial crystal. For a microparticle near a semispace or flat plate made of a uniaxial crystal, the exact expressions for the free energy of the van der Waals and Casimir-Polder interaction are presented. An approximate expression for the free energy of microparticle-cylinder interaction is obtained which becomes precise for microparticle-cylinder separations much smaller than the cylinder radius. The obtained expressions are used to investigate the van der Waals interaction between hydrogen atoms (molecules) and graphite plates or multiwall carbon nanotubes. To accomplish this, the behavior of graphite dielectric permittivities along the imaginary frequency axis is found using the optical data for the complex refractive index of graphite for the ordinary and extraordinary rays. It is shown that the position of hydrogen atoms inside multiwall carbon nanotubes is energetically preferable compared with outside.

• OSTI ID: 20719062
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 71, Issue 23; Other Information: DOI: 10.1103/PhysRevB.71.235401; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ADSORPTION
ATOMS
CASIMIR EFFECT
CRYSTALS
DIELECTRIC MATERIALS
FREE ENERGY
GRAPHITE
HYDROGEN
MOLECULES
NANOTUBES
PERMITTIVITY
PLATES
REFRACTIVE INDEX
SOLIDS
SURFACE POTENTIAL
SURFACES
VAN DER WAALS FORCES