TY - JOUR
T1 - Evidence for a Spatially Modulated Superfluid Phase of 3He under Confinement
AU - Levitin, Lev
AU - Yager, Benjamin
AU - Sumner, Laura
AU - Cowan, Brian
AU - Casey, Andrew
AU - Saunders, John
AU - Zhelev, Nikolay
AU - Bennett, Robert
AU - Parpia, Jeevak
PY - 2019/2/27
Y1 - 2019/2/27
N2 - In superfluid 3He−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 3He in a 1.1 μm 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.
AB - In superfluid 3He−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 3He in a 1.1 μm 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.
UR - https://arxiv.org/abs/1805.02053
U2 - 10.1103/PhysRevLett.122.085301
DO - 10.1103/PhysRevLett.122.085301
M3 - Article
SN - 1079-7114
VL - 122
SP - 1
EP - 6
JO - Physical Review Letters
JF - Physical Review Letters
IS - 8
M1 - 085301
ER -