• Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 
Low Temp Phys Banner

Flickr Twitter UniPHY Group iResearch App Facebook

Low Temperature Physics / Volume 36 / Issue 12 / NANOSTRUCTURES AT LOW TEMPERATURES

Low Temp. Phys. 36, 1091 (2010); http://dx.doi.org/10.1063/1.3530423 (3 pages)

Kinetics of 4He gas sorption by fullerite C60. Quantum effects

A. V. Dolbin, V. B. Esel’son, V. G. Gavrilko, V. G. Manzhelii, N. A. Vinnikov, and S. N. Popov

B. Verkin Institute of Low Temperature Physics and Engineering, National Academy of Sciences of Ukraine, 47 Lenin Ave., Kharkov 61103, Ukraine

View MapView Map

The kinetics of helium gas sorption by C60 powder and subsequent desorption of the 4He impurity from the saturated powder is studied in the temperature interval 2–292 K. Evidence is obtained supporting the existence of two stages in the temperature dependences of sorption and desorption. These stages originate in different times taken by helium to occupy octahedral and tetrahedral interstices in the C60 lattice. The characteristic times of sorption and desorption coincide. It is found that the temperature dependences of the characteristic times for occupying the octahedral and tetrahedral interstices are nonmonotonic. When the temperature is lowered from 292 to 79.3 K, the characteristic times increase, which indicates thermally activated diffusion of helium in C60. With a further reduction to T = 10 K, the characteristic times decrease by more than an order of magnitude. Below 8 K the characteristic times of sorption and desorption are temperature-independent. This suggests tunnel diffusion of 4He in C60.

© 2010 American Institute of Physics

Article Outline

  1. INTRODUCTION
  2. EXPERIMENTAL TECHNIQUE
  3. RESULTS AND DISCUSSION
  4. CONCLUSIONS

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

desorption, fullerenes, impurities, interstitials, thermal diffusivity

PACS

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3530423

PUBLICATION DATA

ISSN

1063-777X (print)  
1090-6517 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    C. P. Chen, S. Mehta, L. P. Fu, A. Petrou, F. M. Gasparini, and A. Hebard, Phys. Rev. Lett. 71, 739 (1993).


For access to citing articles, you need to log in.


Figures (2)

Access to article objects (figures, tables, multimedia) requires a subscription; log in to view available files.
(Access to supplementary files, where available, is free for this journal.)



Close
ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. Kinetics of 4He gas sorption by fullerite C60. Quantum effects
  2. HTSC cuprate films doped with nanoparticles and their electrodynamics, determined by Abrikosov vortices
  3. Nonlinear electrodynamics of vortex matter in hard superconductors (Review)
  4. Ideal and distorted vortex lattice in bulk and film superconductors (Review)
  5. Critical states in thin planar type-II superconductors in a perpendicular or inclined magnetic field (Review)
Go to AIP Home
Copyright © American Institute of Physics
close