標題: Stability of Surface State Electrons on Helium Films
作者: Leiderer, P.
Scheer, E.
Kono, K.
Lin, J. -J.
Rees, D. G.
電子物理學系
物理研究所
Department of Electrophysics
Institute of Physics
關鍵字: Electrons on helium;Thin films;Quantum melting
公開日期: 1-五月-2016
摘要: Electrons on helium substrates form a model Coulomb system in which the transition from classical electron liquid to Wigner crystal is readily observed. However, attempts to increase the electron density in order to observe the 'quantum melting' of the system to a Fermi degenerate gas are hindered by an instability of the helium surface. Here we describe experimental efforts to reach the degenerate regime on thin helium films and microstructured substrates, for which the surface instability is suppressed. We demonstrate that, although the electron densities obtained exceed those for bulk helium substrates, observation of quantum melting remains challenging. We discuss possible solutions to the technical challenges involved.
URI: http://dx.doi.org/10.1007/s10909-015-1377-8
http://hdl.handle.net/11536/145175
ISSN: 0022-2291
DOI: 10.1007/s10909-015-1377-8
期刊: JOURNAL OF LOW TEMPERATURE PHYSICS
Volume: 183
起始頁: 258
結束頁: 263
顯示於類別:期刊論文