Stepwise Layering of Helium Films on Solid Hydrogen

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Stepwise Layering of Helium Films on Solid Hydrogen

The mobility of surface bawd electrons i s monitored as helium i s adsorbed on a hydrogen substrate. Maxima i n t h e mobility occur a t t h e completion of each helium monolayer. U p t o nine maxima are observed, indicat ing that stepwise layering Occurs f o r a t l e a s t nine layers. A smooth var ia t ion of t h e mobility with fu r ther helium adsorption indicates t h a t continuous wettin...

متن کامل

Theory of first-order layering transitions in thin helium films.

Thin liquid He films on graphite show evidence of layered growth with increasing number density via a succession of first-order phase transitions. These so-called ‘‘layering transitions’’ separate uniformly covering phases, such as monolayers and bilayers. The present work is a detailed theoretical study of such layering transitions using a Maxwell construction. We model the graphite surface by...

متن کامل

HELIUM , SOLID 1 Helium , Solid

Helium was first solidified at the famous Kamerlingh Onnes low-temperature physics laboratories in Leiden by W. H. Keesom [1] on June 25, 1926. The initial experiments by Sir Francis Simon at Oxford University and by Keesom and their collaborators focused on the melting curve, the specific heat, and the thermal conductivity of solid helium as a test of our early understanding of solids. These m...

متن کامل

Surface State Electrons on a Hydrogen Film. 2. Influence of Adsorbed Helium Films

We have investigated the conductivity of surface state electrons on liquid 4He films supported by a quench-condensed thin solid hydrogen substrate. A pronounced dip in the ac-conductivity was observed as the He film thickness reached about 10 layers. This phenomenon was studied at different temperatures (range between 1.6 and 210, electron densities from 0.9 to 19x10S cm -2, frequencies between...

متن کامل

Stationary soliton on a charged surface of liquid helium and hydrogen films

A change in the shape of a charged surface of liquid hydrogen and helium — the formation of a solitary wave ~a positively charged hump for hydrogen and a negatively charged dimple for helium! – is observed in an electric field exceeding a critical value under conditions of total compensation of the applied field by the surface charge. © 1997 American Institute of Physics. @S0021-3640~97!01107-9#

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Japanese Journal of Applied Physics

سال: 1987

ISSN: 0021-4922,1347-4065

DOI: 10.7567/jjaps.26s3.751