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Direct measurement of desorption kinetics of ^4He at low temperatures

Sinvani, M. and Taborek, P. and Goodstein, D. (1982) Direct measurement of desorption kinetics of ^4He at low temperatures. Physical Review Letters, 48 (18). pp. 1259-1263. ISSN 0031-9007. https://resolver.caltech.edu/CaltechAUTHORS:SINprl82

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Abstract

A direct method for measuring the desorption time constant of flash-desorbed 4He films (≲ 1 monolayer), adsorbed on Nichrome or Constantan heaters, is described. A time constant τ is found which behaves as τ=τ0exp[E/Ts], where Ts is the heater temperature. The value for the characteristic lifetime τ0 is 10^-9 -10^-10 sec, orders of magnitude shorter than that previously reported. The measured energy parameter E was found to be ~ 2/3 of the chemical potential.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1103/PhysRevLett.48.1259DOIArticle
http://link.aps.org/abstract/PRL/v48/p1259PublisherArticle
Alternate Title:Direct measurement of desorption kinetics of 4He at low temperatures
Additional Information:© 1982 by The American Physical Society. Received 27 January 1982. We wish to thank Professor Milton W. Cole and Michael Weimer for substantial contributions, and Roman Movshovich for technical help. This work was supported by U.S. Office of Naval Research Contract No. N0014-80-C-0447. One of us (M.S.) wishes to acknowledge the support of a Bantrell Fellowship.
Funders:
Funding AgencyGrant Number
Office of Naval Research (ONR)N0014-80-C-0447
Bantrell FoundationUNSPECIFIED
Issue or Number:18
Record Number:CaltechAUTHORS:SINprl82
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:SINprl82
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:11645
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:17 Sep 2008 01:06
Last Modified:03 Oct 2019 00:21

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