6 papers
Spatially Inhomogeneous Triplet Pairing Order and Josephson Diode Effect Induced by Frustrated Spin Textures
Grayson R. Frazier, Yi Li
We show that frustrated spin textures can generate anisotropic Josephson couplings between vectors that can stabilize spatially varying pairing orders in spin triplet supercond…
Anisotropic Josephson coupling of vectors in triplet superconductors arising from frustrated spin textures
Grayson R. Frazier, Junyi Zhang, Yi Li
We demonstrate that coupling itinerant electrons to a noncollinear classical exchange field can induce anisotropic Josephson coupling between superconducting vectors, analogous…
Berry Phase Enforced Spinor Pairing Order
Yi Li, Grayson R. Frazier
We introduce a class of topological pairing orders characterized by a half-integer pair monopole charge, leading to Berry phase enforced half-integer partial wave symmetry. This ex…
Nonintegral Flux Trapping in Frustrated Josephson Networks of Triplet Superconductors
Grayson R. Frazier, Colton Lelievre, Yi Li
In a Josephson junction network, anisotropic coupling between spin triplet pairing correlations can lead to frustrated vector textures that support spontaneous Josephson curren…
Spontaneous flux trapping in granular rings of unconventional superconductors
Junyi Zhang, Yi Li
We study Josephson couplings in unconventional superconductors and generalize the Sigrist-Rice formula by incorporating symmetry constraints and interface orientation disorder. App…
Designing Phase Sensitive Probes of Monopole Superconducting Order
Grayson R. Frazier, Junjia Zhang, Junyi Zhang +2
Distinct from familiar -, -, or -wave pairings, the monopole superconducting order represents a novel class of pairing order arising from nontrivial monopole charge of the…