Ying-Ming Xie

Electrically controlled 0-π oscillations and antiferromagnetic Josephson spin valve with PT symmetry

Jin-Xin Hu, Mengli Hu, Ying-Ming Xie, K. T. Law

We propose that unconventional Josephson effects can typically emerge in PT -symmetric antiferromagnetic (AFM) bilayer systems. When proximitized by a conventional superconductor, these heterostructures host dominant interlayer pairing correlation that features a distinctive spin texture enabled by the strong exchange field. Specifically, …

hk, de, jp (code pays fourni par la source)

Surface-switchable nonreciprocity protected by Fermi arcs in Weyl semimetal TaAs

Dong Li, Yuki M. Itahashi, Ying-Ming Xie, Menghu Zhou et autres

Weyl semimetals host topologically protected surface states, known as Fermi arcs, which connect bulk Weyl nodes in momentum space. Both bulk Weyl nodes and Fermi arcs are anticipated to be chiral. The chirality of bulk bands has been confirmed through observations of …

Surface-switchable nonreciprocity protected by Fermi arcs in Weyl semimetal TaAs

D C Li, Yuki M. Itahashi, Ying-Ming Xie, Menghu Zhou et autres

Weyl semimetals host topologically protected surface states, known as Fermi arcs, which connect bulk Weyl nodes in momentum space. Both bulk Weyl nodes and Fermi arcs are anticipated to be chiral. The chirality of bulk bands has been confirmed through observations of …

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Quantum Information Geometry of Multicomponent Superconducting Fluctuation Transport

Zi-Ting Sun, Ying-Ming Xie, Naoto Nagaosa

Quantum geometry underlies many electronic responses, but its transport signatures have so far been established mainly for pure single-particle Bloch states. Whether collective many-body fluctuations possess a measurable quantum geometry remains largely unexplored. Here we show that superconducting fluctuation transport provides a …

Quantum Information Geometry of Multicomponent Superconducting Fluctuation Transport

Zi-Ting Sun, Ying-Ming Xie, Naoto Nagaosa

Quantum geometry underlies many electronic responses, but its transport signatures have so far been established mainly for pure single-particle Bloch states. Whether collective many-body fluctuations possess a measurable quantum geometry remains largely unexplored. Here we show that superconducting fluctuation transport provides a …

jp (code pays fourni par la source)

Topological altermagnetic Josephson junctions

Grant Z. X. Yang, Zi-Ting Sun, Ying-Ming Xie, K. T. Law

Planar Josephson junctions are pivotal for engineering topological superconductivity, yet are severely hindered by the orbital effects induced by in-plane magnetic fields, or the stray fields introduced by the use of ferromagnets. Here, we propose the generic topological altermagnetic Josephson junctions (TAJJs) …

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Phase-Space Quantum Geometry Beyond Adiabatic Electron Dynamics

Luca Maranzana, Koki Shinada, Ying-Ming Xie, Sergey Artyukhin et autres

The geometry of electronic quantum states plays an important role in the equilibrium and transport properties of solids. While the Berry curvature is known to influence electron motion, recent work has shown that the quantum metric also affects the motion of electron …

Phase-Space Quantum Geometry Beyond Adiabatic Electron Dynamics

Luca Maranzana, Koki Shinada, Ying-Ming Xie, Sergey Artyukhin et autres

The geometry of electronic quantum states plays an important role in the equilibrium and transport properties of solids. While the Berry curvature is known to influence electron motion, recent work has shown that the quantum metric also affects the motion of electron …

it, jp, se (code pays fourni par la source)

Theory of Little-Parks oscillations by vortices in two-dimensional superconductors

Ying-Ming Xie, Naoto Nagaosa

The Little-Parks (LP) effect is a quantum phenomenon in which the superconducting transition temperature of a superconducting cylinder (or ring) oscillates periodically as a function of the magnetic flux threading the loop. Recently, multiple experiments have observed half-quantum flux shifts in measurements …

Theory of Little-Parks oscillations by vortices in two-dimensional superconductors

Ying-Ming Xie, Naoto Nagaosa

The Little-Parks (LP) effect is a quantum phenomenon in which the superconducting transition temperature of a superconducting cylinder (or ring) oscillates periodically as a function of the magnetic flux threading the loop. Recently, multiple experiments have observed half-quantum flux shifts in measurements …

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Pseudo-Ising superconductivity induced by p -wave magnetism

Zi-Ting Sun, Xilin Feng, Ying-Ming Xie, Benjamin T. Zhou et autres

Unconventional magnetic orders usually interplay with superconductivity in intriguing ways. Here, we propose that a conventional superconductor in proximity to a compensated $p$-wave magnet exhibits behaviors analogous to those of Ising superconductivity found in transition-metal dichalcogenides, which we refer to as pseudo-Ising …

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Unconventional Josephson effects in {\it PT}-symmetric antiferromagnetic bilayers

Jinxin Hu, Mengli Hu, Ying-Ming Xie, K. T. Law

We propose that unconventional Josephson effects can typically emerge in {\it PT}-symmetric antiferromagnetic (AFM) bilayer systems. When proximitized by a conventional superconductor, these heterostructures host dominant interlayer Cooper pairing that features a distinctive spin texture enabled by the strong exchange field. Specifically, …