Published December 30, 1985
| Version v1
Journal article
Superfluidity of 4He confined in microscopic bubbles in copper
Creators
- 1. Institut fuer Festkoerperforschung, Kernforschungsanlage Juelich, D-5170 Juelich, and Physikalische Institut, Universitat Bayreuth, D-8580 Bayreuth, West Germany
Description
We have created extremely small and independent Bose systems by confining 4He in bubbles of radius of less than 110 A in Cu foils. The size distribution and density of the bubbles were adjusted by annealing the samples and were determined by transmission electron microscopy. At low temperatures the confined helium becomes first solid, then liquid, and eventually superfluid as the mean bubble size is increased by annealing. The modification of superfluidity in this new confining geometry by size effects has been investigated by low-temperature calorimetry
Additional details
Publishing Information
- Journal Title
- Phys. Rev. Lett.
- Journal Volume
- 55
- Journal Issue
- 27
- Series
- Phys. Rev. Lett.
- Journal Page Range
- 2964-2967
- ISSN
- 0031-9007
- CODEN
- PRLTA
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 17042243
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Descriptors DEI
- ANNEALING; BOSONS; BUBBLES; COPPER; DISTRIBUTION; FOILS; HELIUM 4; SIZE; SOLIDIFICATION; SPECIFIC HEAT; SUPERFLUIDITY; TRANSMISSION ELECTRON MICROSCO; VACUUM SYSTEMS
- Descriptors DEC
- ELECTRON MICROSCOPY; ELEMENTS; EVEN-EVEN NUCLEI; HEAT TREATMENTS; HELIUM ISOTOPES; ISOTOPES; LIGHT NUCLEI; METALS; MICROSCOPY; NUCLEI; PHYSICAL PROPERTIES; STABLE ISOTOPES; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENTS