Shun-Li Yu
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View article: Possible frustrated superconductivity in kagome superconductors
Possible frustrated superconductivity in kagome superconductors Open
Geometric frustration has long been a subject of enduring interest in condensed matter physics. While geometric frustration traditionally focuses on magnetic systems, little attention is paid to the "frustrated superconductivity" which cou…
View article: Magnetic excitations in biaxial-strain detwinned $α$-RuCl$_{3}$
Magnetic excitations in biaxial-strain detwinned $α$-RuCl$_{3}$ Open
The honeycomb magnet $α$-RuCl$_{3}$ has been a leading candidate for realizing the Kitaev quantum spin liquid (QSL), but its intrinsic spin dynamics have remained obscured by crystal twinning. Here we apply biaxial anisotropic strain to de…
View article: Nature of the 1/3 Magnetization Plateau in Spin-1/2 Kagome Antiferromagnets
Nature of the 1/3 Magnetization Plateau in Spin-1/2 Kagome Antiferromagnets Open
We investigate the origin of the 1/3 magnetization plateau in the S = 1/2 kagome antiferromagnetic Heisenberg model using the variational Monte Carlo and exact diagonalization methods, to account for the recent experimental observations in…
View article: Realization of Kagome Kondo lattice
Realization of Kagome Kondo lattice Open
The Kondo lattice, describing a grid of the local magnetic moments coupling to itinerant electrons, is a fertile ground of strongly correlated states in condensed matter physics. While the Kagome lattice has long been predicted to host Kon…
View article: Transition from <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>s</mml:mi><mml:mo>±</mml:mo></mml:msub></mml:math>-wave to <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>d</mml:mi><mml:mrow><mml:msup><mml:mi>x</mml:mi><mml:mn>2</mml:mn></mml:msup><mml:mo>−</mml:mo><mml:msup><mml:mi>y</mml:mi><mml:mn>2</mml:mn></mml:msup></mml:mrow></mml:msub></mml:math>-wave superconductivity driven by interlayer interaction in the bilayer two-orbital model of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mtext>La</mml:mtext><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mtext>Ni</mml:mtext><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mtext>O</mml:mtext><mml:mn>7</mml:mn></mml:msub></mml:mrow></mml:math>
Transition from -wave to -wave superconductivity driven by interlayer interaction in the bilayer two-orbital model of Open
We utilize the fluctuation-exchange approximation on a bilayer two-orbital model, incorporating $d_{x^2-y^2}$ and $d_{z^2}$ orbitals, to explore potential pairing symmetries in the bilayer nickelate La$_3$Ni$_2$O$_7$. Our study particularl…
View article: High Quality Single Crystal of Kitaev Spin Liquid Candidate Material RuBr3 Synthesized under High Pressure
High Quality Single Crystal of Kitaev Spin Liquid Candidate Material RuBr3 Synthesized under High Pressure Open
Kitaev quantum spin liquids have attracted significant attention in condensed matter physics over the past decade. To understand their emergent quantum phenomena, high-quality single crystals of substantial size are essential. Here, we rep…
View article: Investigation into the Acetic Acid Corrosion Resistance of Pb-Based Glass Doped with Ti/Zr under Humid Heat Testing Conditions
Investigation into the Acetic Acid Corrosion Resistance of Pb-Based Glass Doped with Ti/Zr under Humid Heat Testing Conditions Open
View article: Observation of superconducting diode effect in antiferromagnetic Mott insulator $α$-RuCl$_3$
Observation of superconducting diode effect in antiferromagnetic Mott insulator $α$-RuCl$_3$ Open
Nonreciprocal superconductivity, also called as superconducting diode effect that spontaneously breaks time-reversal symmetry, is characterized by asymmetric critical currents under opposite applied current directions. This distinct state …
View article: Variational Monte Carlo Study of the 1/9 Magnetization Plateau in Kagome Antiferromagnets
Variational Monte Carlo Study of the 1/9 Magnetization Plateau in Kagome Antiferromagnets Open
Motivated by very recent experimental observations of the 1/9 magnetization plateaus in YCu$_3$(OH)$_{6+x}$Br$_{3-x}$ and YCu$_3$(OD)$_{6+x}$Br$_{3-x}$, our study delves into the magnetic field-induced phase transitions in the nearest-neig…
View article: Realization of Kagome Kondo lattice
Realization of Kagome Kondo lattice Open
The Kondo lattice, describing a grid of the local magnetic moments coupling to itinerant electrons, is a fertile ground of strongly correlated states in condensed matter physics. While the Kagome lattice has long been predicted to host Kon…
View article: Observation of Magnon Damping Minimum Induced by Kondo Coupling in a van der Waals Ferromagnet Fe$_{3-x}$GeTe$_{2}$
Observation of Magnon Damping Minimum Induced by Kondo Coupling in a van der Waals Ferromagnet Fe$_{3-x}$GeTe$_{2}$ Open
In heavy-fermion systems with $f$ electrons, there is an intricate interplay between Kondo screening and magnetic correlations, which can give rise to various exotic phases. Recently, similar interplay appears to also occur in $d$-electron…
View article: Potential-tuned magnetic switches and half-metallicity transition in zigzag graphene nanoribbons
Potential-tuned magnetic switches and half-metallicity transition in zigzag graphene nanoribbons Open
Realizing controllable room-temperature ferromagnetism in carbon-based materials is one of recent prospects. The magnetism in graphene nanostructures reported previously is mostly localized by breaking the local sublattice imbalance. Here,…
View article: Interplay between Chiral Charge Density Wave and Superconductivity in Kagome Superconductors: A Self-consistent Theoretical Analysis
Interplay between Chiral Charge Density Wave and Superconductivity in Kagome Superconductors: A Self-consistent Theoretical Analysis Open
Inspired by the recent discovery of a successive evolutions of electronically ordered states, we present a self-consistent theoretical analysis that treats the interactions responsible for the chiral charge order and superconductivity on a…
View article: Author Correction: A one-third magnetization plateau phase as evidence for the Kitaev interaction in a honeycomb-lattice antiferromagnet
Author Correction: A one-third magnetization plateau phase as evidence for the Kitaev interaction in a honeycomb-lattice antiferromagnet Open
View article: Direct observation of topological magnon polarons in a multiferroic material
Direct observation of topological magnon polarons in a multiferroic material Open
Magnon polarons are novel elementary excitations possessing hybrid magnonic and phononic signatures, and are responsible for many exotic spintronic and magnonic phenomena. Despite long-term sustained experimental efforts in chasing for mag…
View article: A one-third magnetization plateau phase as evidence for the Kitaev interaction in a honeycomb-lattice antiferromagnet
A one-third magnetization plateau phase as evidence for the Kitaev interaction in a honeycomb-lattice antiferromagnet Open
View article: An energy-sensitive interfacial-superconductor photodetector
An energy-sensitive interfacial-superconductor photodetector Open
The investigation of photon response in the superconducting state of interfacial superconductors holds both fundamental and practical significance, yet it remains largely unexplored. Here, we report an energy-sensitive photodetector utiliz…
View article: Spectrum of the Hole Excitation in Spin-Orbit Mott Insulator Na<sub>2</sub>IrO<sub>3</sub>
Spectrum of the Hole Excitation in Spin-Orbit Mott Insulator Na<sub>2</sub>IrO<sub>3</sub> Open
We study the motion of a hole with internal degrees of freedom, introduced to the zigzag magnetic ground state of Na 2 IrO 3 , by using the self-consistent Born approximation. We find that the low-, intermediate-, and high-energy spectra a…
View article: Potential-tuned magnetic switches and half-metallicity transition in zigzag graphene nanoribbons
Potential-tuned magnetic switches and half-metallicity transition in zigzag graphene nanoribbons Open
Realizing controllable room-temperature ferromagnetism in carbon-based materials is one of recent prospects. The magnetism in graphene nanostructures reported previously is mostly formed near the vacancies, zigzag edges, or impurities by b…
View article: Electron-Exciton Coupling in 1T-TiSe<sub>2</sub> Bilayer
Electron-Exciton Coupling in 1T-TiSe<sub>2</sub> Bilayer Open
Excitons in solid state are bosons generated by electron-hole pairs as the Coulomb screening is sufficiently reduced. The exciton condensation can result in exotic physics such as super-fluidity and insulating state. In charge density wave…
View article: Impact of the orbital current order on the superconducting properties of the kagome superconductors
Impact of the orbital current order on the superconducting properties of the kagome superconductors Open
Motivated by recent experimental evidences signalling the chiral charge order\nin the vanadium-based kagome superconductors, we theoretically investigate the\nimpact of the chiral flux charge order over the experimental outcomes for the\nn…
View article: Active water management brings possibility restoration to degraded lakes in dryland regions: a case study of Lop Nur, China
Active water management brings possibility restoration to degraded lakes in dryland regions: a case study of Lop Nur, China Open
View article: Mixture of the nearest- and next-nearest-neighbor d + id-wave pairings on the honeycomb lattice
Mixture of the nearest- and next-nearest-neighbor d + id-wave pairings on the honeycomb lattice Open
Symmetry of superconducting pairing is one of the cardinal issues in superconductivity. In general, the nearest-neighbor and next-nearest-neighbor pairings cannot spontaneously mix with each other constrained by the distinct symmetry class…
View article: Electronic structure and spin-lattice relaxation in superconducting vortex states on the kagome lattice near van Hove filling
Electronic structure and spin-lattice relaxation in superconducting vortex states on the kagome lattice near van Hove filling Open
Starting from a tight-binding model on the kagome lattice near the van Hove\nfilling, the superconducting (SC) properties are investigated self-consistently\nusing the Bogoliubov-de Gennes equation with the consideration of the\ninequivale…
View article: Spin dynamics and continuum spectra of the honeycomb <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>J</mml:mi><mml:mn>1</mml:mn></mml:msub><mml:mtext>−</mml:mtext><mml:msub><mml:mi>J</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math> antiferromagnetic Heisenberg model
Spin dynamics and continuum spectra of the honeycomb antiferromagnetic Heisenberg model Open
We employ the spin cluster perturbation theory to investigate the dynamical\nproperties of the antiferromagnetic $J_{1}$-$J_{2}$ Heisenberg model on the\nhoneycomb lattice. We obtain the excitation spectra for all possible phases in\nthe p…
View article: Neutron Spectroscopy Evidence for a Possible Magnetic-Field-Induced Gapless Quantum-Spin-Liquid Phase in a Kitaev Material α-RuCl<sub>3</sub>
Neutron Spectroscopy Evidence for a Possible Magnetic-Field-Induced Gapless Quantum-Spin-Liquid Phase in a Kitaev Material α-RuCl<sub>3</sub> Open
As one of the most promising Kitaev quantum-spin-liquid (QSL) candidates, α -RuCl 3 has received a great deal of attention. However, its ground state exhibits a long-range zigzag magnetic order, which defies the QSL phase. Nevertheless, th…
View article: Neutron Spectroscopy Evidence on the Dual Nature of Magnetic Excitations in a van der Waals Metallic Ferromagnet <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>Fe</mml:mi></mml:mrow><mml:mrow><mml:mn>2.72</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>GeTe</mml:mi></mml:mrow><mml:mrow><mml:mn>2</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:mrow></mml:math>
Neutron Spectroscopy Evidence on the Dual Nature of Magnetic Excitations in a van der Waals Metallic Ferromagnet Open
In the local or itinerant extreme, magnetic excitations can be described by the Heisenberg model which treats electron spins as localized moments, or by the itinerant-electron model where the exchange interaction between electrons leads to…
View article: Evidence for Magnetic Fractional Excitations in a Kitaev Quantum-Spin-Liquid Candidate α-RuCl<sub>3</sub>
Evidence for Magnetic Fractional Excitations in a Kitaev Quantum-Spin-Liquid Candidate α-RuCl<sub>3</sub> Open
It is known that α -RuCl 3 has been studied extensively because of its proximity to the Kitaev quantum-spin-liquid (QSL) phase and the possibility of approaching it by tuning the competing interactions. Here we present the first polarized …
View article: Disorder-induced broadening of the spin waves in the triangular-lattice quantum spin liquid candidate<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi>YbZnGaO</mml:mi><mml:mn>4</mml:mn></mml:msub></mml:math>
Disorder-induced broadening of the spin waves in the triangular-lattice quantum spin liquid candidate Open
Disorder is important in the study of quantum spin liquids, but its role on the spin dynamics remains elusive. Here, we explore the disorder effect by investigating the magnetic-field dependence of the low-energy magnetic excitations in a …
View article: Evidence for strong correlations at finite temperatures in the dimerized magnet <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi mathvariant="normal">Na</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">Cu</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">TeO</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math>
Evidence for strong correlations at finite temperatures in the dimerized magnet Open
Dimerized magnets forming alternating Heisenberg chains exhibit quantum\ncoherence and entanglement and thus can find potential applications in quantum\ninformation and computation. However, magnetic systems typically undergo\nthermal deco…