Published September 7, 2006
| Version v1
Journal article
A Chemical Potential 'Battery' for Superfluid 4He Weak Links
- 1. Department of Physics, University of California, Berkeley, CA 94720 (United States)
- 2. Jet Propulsion Laboratory, California Institute of Technology, Pasadena, CA 91109 (United States)
Description
Research and development of superfluid weak links has been hindered by the absence of a source of dc chemical potential, similar to a simple battery or voltage source for analogous superconducting devices. We describe here a method for generating a dc chemical potential difference, Δμ across a weak link array in superfluid 4He. The presence of a Δμ forces quantum oscillations at a Josephson frequency, selectable by the adjustment of input power to a heater. We discuss a case in which the frequency locks onto a resonance feature where it exhibits remarkable stability, and amplitude magnification by a factor of 40
Additional details
Identifiers
- DOI
- 10.1063/1.2354630;
Publishing Information
- Journal Title
- AIP Conference Proceedings
- Journal Volume
- 850
- Journal Issue
- 1
- Journal Page Range
- p. 117-118
- ISSN
- 0094-243X
- CODEN
- APCPCS
Conference
- Title
- 24. international conference on low temperature physics
- Acronym
- LT24
- Dates
- 10-17 Aug 2005
- Place
- Orlando, FL (United States)
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38045225
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- AMPLITUDES; ELECTRIC POTENTIAL; HEATERS; HELIUM 4; OSCILLATIONS; POTENTIALS; STABILITY; SUPERCONDUCTING DEVICES; SUPERCONDUCTING JUNCTIONS; SUPERFLUIDITY
- Descriptors DEC
- EVEN-EVEN NUCLEI; HELIUM ISOTOPES; ISOTOPES; LIGHT NUCLEI; NUCLEI; STABLE ISOTOPES
Optional Information
- Notes
- (c) 2006 American Institute of Physics