| 释义 |
superfluid, n. and a. Physics.
(stress variable)
[super- 6 c, 9 a.]
A. n. (ˈsuperfluid.) A fluid that exhibits superfluidity.
1938P. Kapitza in Nature 8 Jan. 74/2 The helium below the λ-point enters a special state which might be called a ‘superfluid’. 1950[see quantum liquid s.v. quantum 7 a]. 1965Economist 22 May 935/2 Helium itself behaves oddly. If cooled below 2·2 degrees K it becomes a ‘superfluid’. 1974Nature 15 Mar. 195/2 With the discovery of the new phases of 3He, the number of known superfluids in nature has been doubled. 1982McGraw-Hill Yearbk. Sci. & Technol. 227/1 The neutrons in a neutron star..are expected to form a p-wave-paired superfluid whose properties should be related to those of 3He-A and B.
B. adj. (superˈfluid.) Exhibiting or pertaining to superfluidity.
1941Physical Rev. LX. 357/2 We might regard liquid helium as if it consisted of a ‘mixture’ of two liquids—one is ‘superfluid’ without viscosity..and the other is ‘normal’. 1947, etc. [see normal a. 2 k.] 1968C. G. Kuper Introd. Theory Superconductivity ii. 20 At any temperature T c only a fraction..of the electrons are in the condensate (‘superfluid’ electrons) and the remainder are ‘normal’ electrons. 1974Nature 6 Dec. 441/2 Liquid 3He..under its own saturated vapour pressure..was found to undergo a superfluid transition at 0·93 mK. |