National Laboratory for Superconductivity

Atom‐Precision Synthesis of MoS 2 /WS 2 Lateral Heterostructures for Prolonged Excitonic Lifetime

ABSTRACT Transition metal dichalcogenide (TMD) lateral heterostructures provide unique platforms to study nanoscale physics, but progress is limited by the difficulty of producing high‐quality interfaces, which require atomic‐precision growth rather than simple stacking. We repor...

Realization of Quantum Spin Hall Insulator Superlattice with Emergent Multigap‐Like Helical Edge States

ABSTRACT The functional quantum spin Hall insulators (QSHI), protected by time‐reversal symmetry against single‐particle backscattering, hold great promise for dissipationless quantum electronics. Realization of QSHI with gapped helical edge states, which would enable determinist...

Machine Learning-Guided Strategy Selection and Condition Prediction for Photoredox Catalysis

Abstract Photoredox catalysis offers powerful opportunities for organic synthesis, yet its broader application remains limited by the difficulty of identifying viable synthetic routines and conditions. Here, we present an experimentally validated, machine-learning-assisted workfl...

Protocol for measuring above-threshold ionization spectra driven by few-cycle laser pulses in frustrated tunneling ionization regime

Above-threshold ionization (ATI) spectra in the frustrated tunneling ionization (FTI) regime demonstrate control of bound-state populations via the carrier-envelope phase (CEP). Here, we present a protocol for acquiring ATI spectra from argon gas driven by few-cycle laser pulses....

Ultra‐Dark on‐Chip Plasmonic Lattice Lasers for High‐Density Integrations

ABSTRACT Due to out‐of‐plane diffraction channels or scattering channels of defects, on‐chip micro‐lasers always suffer from severe emission of free‐space photons. This severely hampers not only the development of ultra‐high Q and ultra‐dark on‐chip micro‐lasers but also the high...

Electrically controllable superconducting memory effect in UTe2

Abstract Multiphase superconductors—materials that host two or more distinct superconductive phases—are exceptionally rare. Examples include heavy-fermion CeRh 2 As 2 alongside some uranium compounds such as UPt 3 and URhGe (refs. 1,2,3 ). In the multiphase p -wave superfluid 3 H...

Disentangling the effect of space and electric field on photoelectrochemical water splitting

Photoelectrochemical water splitting is a promising pathway for renewable solar fuel production. The photoelectrochemical performance strongly depends on the charge separation ability within the space charge layer. In space charge layer, the charge dynamics should be governed by...

Generation of Squarelike Skyrmion Bubbles and Configuration Manipulation in Rare‐Earth DyFe 11 Mo Magnet

ABSTRACT Topological magnetic skyrmions with nanoscale particle‐like characteristics and high manipulability have been intensively studied as promising candidates for next‐generation high‐density information units. Besides the chiral skyrmions determined by Dzyaloshinskii‐Moriya...

Coherent terahertz magnon–phonon three-wave mixing in a layered antiferromagnet

The coherent nonlinear dynamics between collective excitations, such as magnons and phonons, drive emergent phenomena in quantum materials, yet their direct observation remains limited. Here, using double-terahertz-pump optical-probe spectroscopy, we report the direct observation...

Noncollinear kagome magnet driven by giant antisymmetric exchange

Kagome lattices host exotic phenomena such as quantum spin liquids, topological Weyl nodes, and flat bands. The kagome ferromagnet Co3Sn2S2 has been a focus of debate due to conflicting reports on its magnetic character. Here, using weakly perturbative probes—primarily neutron sc...

Gate-imprinted memory and light-induced erasure of superconductivity at KTaO3-based interfaces

Realizing non-volatile control of superconductivity is a key step toward integrating memory and quantum functionality in future information technologies. KTaO₃-based heterostructures uniquely host interfacial two-dimensional superconductivity and quantum paraelectric lattice back...

Encapsulated CsPbBr3 quantum dots with asymmetric chiral magneto-optoelectronic responses

Quantum emitters having non-trivial spin polarizations are highly demanded for chiral quantum devices and quantum photonic technologies. Here we investigate the magneto photoluminescence spectroscopy of perovskite quantum dots encapsulated in silica and report an observation of c...

Spin-quenching cobalt center for efficient ammonia synthesis derived from oxide mixology

The spin polarization plays a critical role in heterogeneous catalysis by influencing the properties of active sites and thereby altering catalytic performance. However, precise construction of active sites with well-tuned spin states remains challenging. Here we demonstrate to m...

Alternating-chiral charge density waves and associated spin polarization in monolayered NbTe2

Intertwining of different quantum degrees of freedom manifests exotic quantum phenomena in many-body systems, especially in reduced dimensionality. Here we show that monolayered NbTe2 serves as a promising platform where lattice, charge, and spin degrees of freedom manifest coope...