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Updated: Sep 11, 2025

Experimental Investigation of the Flow Structure over a Delta Wing Via Flow Visualization Methods
Published on: April 23, 2018
Observation of Vortex Stripes in UTe2
Youfang Wang1, Hongxu Yao1, Thomas Winyard2
1State Key Laboratory of Surface Physics and Department of Physics, Fudan University, Shanghai 200433, China.
None:
In conventional type-II superconductors, quantum vortices determine the magnetic response of the system and tend to form regular lattices. UTe2 is a recently discovered heavy Fermion superconductor exhibiting many anomalous macroscopic behaviors, but whether it has a multicomponent order parameter remains open. Here, we study the vortices of UTe2 by employing scanning superconducting quantum interference device microscopy. While a small out-of-plane magnetic field produces typical isolated vortices, a higher field generates vortex stripe patterns that evolve with the vortex density. The stripes form at different locations and along different directions in the surface plane when the field is along the b or c axis. The behavior is reproduced by our simulation based on an anisotropic two-component order parameter. This study shows that UTe2 has a nontrivial disparity of multiple length scales, placing constraints on the multicomponent superconductivity.
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