Josephson effect and a π-state in superfluid 3He

被引:13
作者
Avenel, O [1 ]
Mukharsky, Y
Varoquaux, E
机构
[1] Ctr Etud Saclay, Serv Phys Etat Condense, CEA, DRECAM, F-91191 Gif Sur Yvette, France
[2] Univ Paris 11, CNRS, Phys Solides Lab, F-91405 Orsay, France
关键词
D O I
10.1038/17244
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Evidence has been reported for Josephson-type behaviour in the flow of superfluid helium-3 (3He) through an array of 4,225 apertures1,2 and for a metastable π-state at low temperature3. Here we show that an array of holes cannot be expected to act as a single weak link in such a system, and that these results can be explained without invoking the superfluid analogue of the much-debated ‘π-junction’ in other systems.
引用
收藏
页码:484 / 485
页数:2
相关论文
共 5 条
[1]   Direct measurement of the current-phase relation of a superfluid He-3-B weak link [J].
Backhaus, S ;
Pereverzev, SV ;
Loshak, A ;
Davis, JC ;
Packard, RE .
SCIENCE, 1997, 278 (5342) :1435-1438
[2]   Discovery of a metastable π-state in a superfluid 3He weak link [J].
Backhaus, S ;
Pereverzev, S ;
Simmonds, RW ;
Loshak, A ;
Davis, JC ;
Packard, RE .
NATURE, 1998, 392 (6677) :687-690
[3]  
HATAKANA N, 1998, PHYS REV LETT, V81, P17
[4]  
PEREVERSEV SV, 1997, NATURE, V338, P449
[5]   PHASE SLIPPAGE IN SUPERFLUID HE-3-B [J].
VAROQUAUX, E ;
AVENEL, O ;
IHAS, G ;
SALMELIN, R .
PHYSICA B, 1992, 178 (1-4) :309-317