The growth of the non-wetting liquid 4He on Cs

Publikationstyp: Zeitschriftenartikel
URI (zitierfähiger Link): http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-27618
Autor/innen: Iov, Valentin; Klier, Jürgen; Leiderer, Paul
Erscheinungsjahr: 2003
Erschienen in: Physica / B [Condensed Matter] ; 329-333 (2003), Part 1. - S. 242-245
DOI (zitierfähiger Link): https://dx.doi.org/10.1016/S0921-4526(02)01976-2
Zusammenfassung:
It was theoretically predicted that the heavy alkali metals provide the only surfaces non-wetted by superfluid 4He below a certain temperature Tw. This was experimentally proven both for Cs and for Rb. However, investigations have shown that the non-wetting thin-film state for the He-Cs system is extremely dilute for T < Tw, yet close to Tw it can be much thicker and of the order of monolayers. Using the photoelectron tunneling method we have sensitively measured the growth of the non-wetting thin-film skate of 4He on a quench-condensed Cs surface. It turns out that far from coexistence there is little adsorption of helium. In contrast, close to GO-existence a rapid growth up to two to three monolayers of helium is observed, but the surface is still non-wet under the usual convention.
Fachgebiet (DDC): 530 Physik
Schlagwörter: Wetting, thin hellurn films, photoelectron tunneling, alkali metals
Link zur Lizenz: Nutzungsbedingungen
Universitätsbibliographie: Ja

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IOV, Valentin, Jürgen KLIER, Paul LEIDERER, 2003. The growth of the non-wetting liquid 4He on Cs. In: Physica / B [Condensed Matter]. 329-333(Part 1), pp. 242-245. Available under: doi: 10.1016/S0921-4526(02)01976-2

@article{Iov2003growt-4736, title={The growth of the non-wetting liquid 4He on Cs}, year={2003}, doi={10.1016/S0921-4526(02)01976-2}, number={Part 1}, volume={329-333}, journal={Physica / B [Condensed Matter]}, pages={242--245}, author={Iov, Valentin and Klier, Jürgen and Leiderer, Paul} }

2003 terms-of-use Leiderer, Paul It was theoretically predicted that the heavy alkali metals provide the only surfaces non-wetted by superfluid 4He below a certain temperature Tw. This was experimentally proven both for Cs and for Rb. However, investigations have shown that the non-wetting thin-film state for the He-Cs system is extremely dilute for T < Tw, yet close to Tw it can be much thicker and of the order of monolayers. Using the photoelectron tunneling method we have sensitively measured the growth of the non-wetting thin-film skate of 4He on a quench-condensed Cs surface. It turns out that far from coexistence there is little adsorption of helium. In contrast, close to GO-existence a rapid growth up to two to three monolayers of helium is observed, but the surface is still non-wet under the usual convention. Iov, Valentin application/pdf Klier, Jürgen 2011-03-24T14:49:57Z The growth of the non-wetting liquid 4He on Cs First publ. in: Physica / B [Condensed Matter], Vols. 329-333 (2003), Part 1, pp. 242-245 Iov, Valentin 2011-03-24T14:49:57Z Klier, Jürgen Leiderer, Paul eng

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