= C. C. Tsuei
{c}
{tag=Physicist}
An experimental <condensed matter physicist> who coauthored a phase-sensitive test of <d-wave superconductivity> using a tricrystal ring. A ring containing three grain-boundary <Josephson junctions> exhibited spontaneous half-quantum <magnetic flux>, while two-junction control rings did not. The geometry converts a sign change of the pairing <order parameter> into a measurable magnetic signal.<Pairing symmetry and flux quantization in a tricrystal superconducting ring by C. C. Tsuei and others>[Abstract: three-junction ring, two-junction controls and half-flux observation]{ref}
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