Onset of superfluidity far from equilibrium: dynamical effects on the correlation length

Autor:	Peter K. Day, Robert Duncan, T. D. McCarson, S. T. P. Boyd, D. Elliott, D. A. Sergatskov, Alexei Babkin
Rok vydání:	2000
Předmět:	Physics Gravity (chemistry) Condensed matter physics Critical phenomena Mechanics Condensed Matter Physics Thermal conduction Electronic Optical and Magnetic Materials Superfluidity Nonlinear system Heat flux Electrical and Electronic Engineering Autocatalytic reaction Divergence (statistics)
Zdroj:	Physica B: Condensed Matter. 280:45-49
ISSN:	0921-4526
Popis:	Nonlinear heat conduction has recently been measured near the superfluid transition in pure 4He at very low heat flux Q. Since both dynamic effects and gravity limit the divergence of the superfluid correlation length near the transition at low-Q, these measurements must be repeated in the microgravity environment in order to observe the dynamic effects in isolation. Comparison of the microgravity data to similar data obtained on Earth will provide experimental insight into the effect of gravity on this nonlinear conduction region at low heat flux where theoretical predictions are lacking. While some measurement advantages exist in the microgravity laboratory, it is the study of the direct effect of gravity on the nonlinear conduction measurements that motivate the microgravity need.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::0eba0a7697343319b0c0e6c6b2e2d497 https://doi.org/10.1016/s0921-4526(99)01445-3 Zobrazit plný text záznamu Full Text from ScienceDirect