Evidence for a Spatially Modulated Superfluid Phase of 3He under Confinement

被引：38

作者：

Levitin, Lev V. ^{[1
]}

Yager, Ben ^{[1
,3
]}

Sumner, Laura ^{[1
,4
]}

Cowan, Brian ^{[1
]}

Casey, Andrew J. ^{[1
]}

Saunders, John ^{[1
]}

Zhelev, Nikolay ^{[2
,5
]}

Bennett, Robert G. ^{[2
,6
]}

Parpia, Jeevak M. ^{[2
]}

机构：

[1] Royal Holloway Univ London, Dept Phys, Egham TW20 0EX, Surrey, England

[2] Cornell Univ, Dept Phys, Ithaca, NY 14853 USA

[3] Univ Waterloo, Inst Quantum Comp, Waterloo, ON N2L 3G1, Canada

[4] Imperial Coll London, London SW7 2AZ, England

[5] Corning Inc, Corning, NY 14831 USA

[6] Vantage Power Ltd, London UB6 0FD, England

来源：

PHYSICAL REVIEW LETTERS | 2019年 / 122卷 / 08期

基金：

英国工程与自然科学研究理事会;

关键词：

A-B TRANSITION; DOMAIN-WALLS; SLAB; SUPERCONDUCTIVITY;

D O I：

10.1103/PhysRevLett.122.085301

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

In superfluid He-3-B confined in a slab geometry, domain walls between regions of different order parameter orientation are predicted to be energetically stable. Formation of the spatially modulated superfluid stripe phase has been proposed. We confined He-3 in a 1.1 mu m high microfluidic cavity and cooled it into the B phase at low pressure, where the stripe phase is predicted. We measured the surface-induced order parameter distortion with NMR, sensitive to the formation of domains. The results rule out the stripe phase, but are consistent with 2D modulated superfluid order.

引用

页数：6

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