Hong Zheng
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View article: Pressure tuning of Kitaev spin liquid candidate Na3Co2SbO6
Pressure tuning of Kitaev spin liquid candidate Na3Co2SbO6 Open
The search for Kitaev’s quantum spin liquid in real materials has recently expanded with the prediction that honeycomb lattices of divalent, high-spin cobalt ions could host the dominant bond-dependent exchange interactions required to sta…
View article: Effect of Propagating Dopant Reactivity on Lattice Oxygen Loss in LLZO Solid Electrolyte Contacted with Lithium Metal
Effect of Propagating Dopant Reactivity on Lattice Oxygen Loss in LLZO Solid Electrolyte Contacted with Lithium Metal Open
Lithium lanthanum zirconium oxide (LLZO) is widely known as the most stable solid electrolyte against lithium metal electrodes. This thermodynamic stability can be lost by the presence of dopants which are required to stabilize the cubic p…
View article: Low fractional volume superconductivity in single crystals of <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mi mathvariant="normal">P</mml:mi><mml:msub><mml:mi mathvariant="normal">r</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:mi mathvariant="normal">N</mml:mi><mml:msub><mml:mi mathvariant="normal">i</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>10</mml:mn></mml:msub></mml:mrow></mml:math> under pressure
Low fractional volume superconductivity in single crystals of under pressure Open
Magnetotransport measurements of Pr4Ni3O10 single crystals performed under externally applied pressures up to 73 GPa in diamond anvil cells with either KBr or Nujol oil as pressure media yield signatures of…
View article: Self-Paced Online Multi-Task Learning via Alternating Direction Method of Multipliers
Self-Paced Online Multi-Task Learning via Alternating Direction Method of Multipliers Open
Online multi-task learning (OMTL) enhances streaming data processing by harnessing relationships across tasks, typically formulated as an optimization problem with a shared loss function. However, conventional gradient-based methods often …
View article: Herringbone-to-Pi Stack Packing Transition Promotes Intermolecular Charge Transfer for Persistent Room-Temperature Phosphorescence
Herringbone-to-Pi Stack Packing Transition Promotes Intermolecular Charge Transfer for Persistent Room-Temperature Phosphorescence Open
View article: A pH-Responsive Polyetheretherketone Implant Modified with a Core–Shell Metal–Organic Framework to Promote Antibacterial and Osseointegration Abilities
A pH-Responsive Polyetheretherketone Implant Modified with a Core–Shell Metal–Organic Framework to Promote Antibacterial and Osseointegration Abilities Open
Polyetheretherketone (PEEK) is considered to be a potential material for oral implants due to its elastic modulus being similar to that of human cortical bone. However, the poor antibacterial, anti-inflammatory, and osseointegration proper…
View article: Construction of Ti3+/Ov Doped 3d Broad-Spectrum Responsive Tio2 Facet Heterojunction for Adsorption-Photocatalytic Degradation of Tetracycline
Construction of Ti3+/Ov Doped 3d Broad-Spectrum Responsive Tio2 Facet Heterojunction for Adsorption-Photocatalytic Degradation of Tetracycline Open
View article: Identifying and tuning coordinated water molecules for efficient electrocatalytic water oxidation
Identifying and tuning coordinated water molecules for efficient electrocatalytic water oxidation Open
View article: On the Topotactic Phase Transition Achieving Superconducting Infinite‐Layer Nickelates
On the Topotactic Phase Transition Achieving Superconducting Infinite‐Layer Nickelates Open
Topotactic reduction is critical to a wealth of phase transitions of current interest, including synthesis of the superconducting nickelate Nd 0.8 Sr 0.2 NiO 2 , reduced from the initial Nd 0.8 Sr 0.2 NiO 3 /SrTiO 3 heterostructure. Due to…
View article: Frustration-mediated crossover from long-range to short-range magnetic ordering in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi mathvariant="normal">Y</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>–</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:mi mathvariant="normal">L</mml:mi><mml:msub><mml:mi mathvariant="normal">u</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:mi>BaC</mml:mi><mml:msub><mml:mi mathvariant="normal">o</mml:mi><mml:mn>4</mml:mn></mml:msub><mml:msub><mml:mi mathvariant="normal">O</mml:mi><mml:mn>7</mml:mn></mml:msub></mml:mrow></mml:math>
Frustration-mediated crossover from long-range to short-range magnetic ordering in Open
The RBaCo4O7 system is a prototype geometrically frustrated magnet in which kagome planes and triangular layers of Co-O tetrahedra interleave. For R=Y, an antiferromagnetic ground state is realized due to a frustra…
View article: Identifying and tuning coordinated water molecules for efficient electrocatalytic water oxidation
Identifying and tuning coordinated water molecules for efficient electrocatalytic water oxidation Open
Coordination complexes are promising candidates for powerful electrocatalytic oxygen evolution reaction (OER) but challenges remain in favoring the kinetics behaviors through local coordination regulation. Herein, by refining the synergy o…
View article: Low Temperature Dynamic Polaron Liquid in a Manganite Exhibiting Colossal Magnetoresistance
Low Temperature Dynamic Polaron Liquid in a Manganite Exhibiting Colossal Magnetoresistance Open
Polarons-fermionic charge carriers bearing a strong companion lattice deformation-exhibit a natural tendency for self-localization due to the recursive interaction between electrons and the lattice. While polarons are ubiquitous in insulat…
View article: Polymorphism in the Ruddlesden–Popper Nickelate La<sub>3</sub>Ni<sub>2</sub>O<sub>7</sub>: Discovery of a Hidden Phase with Distinctive Layer Stacking
Polymorphism in the Ruddlesden–Popper Nickelate La<sub>3</sub>Ni<sub>2</sub>O<sub>7</sub>: Discovery of a Hidden Phase with Distinctive Layer Stacking Open
We report the discovery of a novel form of Ruddlesden-Popper (RP) nickelate that stands as the first example of long-range, coherent polymorphism in this class of inorganic solids. Rather than the well-known, uniform stacking of perovskite…
View article: Facilegreen Preparation of Novel Functionalized Cofs Rich in S, N Adsorption Sites for Ultrafast Removal of Trace Hg(Ⅱ) from Water
Facilegreen Preparation of Novel Functionalized Cofs Rich in S, N Adsorption Sites for Ultrafast Removal of Trace Hg(Ⅱ) from Water Open
View article: Rhb-Sensitized Mil-125(Ti)/G-C3n4/Bi2o3 Composite for Adsorption and Visible-Light Photocatalytic Removal of Drugs from Water
Rhb-Sensitized Mil-125(Ti)/G-C3n4/Bi2o3 Composite for Adsorption and Visible-Light Photocatalytic Removal of Drugs from Water Open
View article: Frustration-Mediated Crossover from Long-Range to Short-Range Magnetic Ordering in $\mathbf{Y_{1-x}Lu_xBaCo_4O_7} $
Frustration-Mediated Crossover from Long-Range to Short-Range Magnetic Ordering in $\mathbf{Y_{1-x}Lu_xBaCo_4O_7} $ Open
We present a comprehensive magnetic and structural phase diagram for $\mathrm{Y_{1-x}Lu_xBaCo_4O_7}$, established through neutron diffraction and magnetization measurements. Our results outline the evolution of various nuclear structures, …
View article: Bootstrapped Dimensional Crossover of a Spin Density Wave
Bootstrapped Dimensional Crossover of a Spin Density Wave Open
Quantum materials display rich and myriad types of magnetic, electronic, and structural ordering, often with these ordering modes either competing with one another or “intertwining,” that is, reinforcing one another. Low-dimensional quantu…
View article: Evolution of magnetic surfboards and spin glass behavior in (Fe<sub>1−<i>p</i> </sub>Ga<i> <sub>p</sub> </i>)<sub>2</sub>TiO<sub>5</sub>
Evolution of magnetic surfboards and spin glass behavior in (Fe<sub>1−<i>p</i> </sub>Ga<i> <sub>p</sub> </i>)<sub>2</sub>TiO<sub>5</sub> Open
The unusual anisotropy of the spin glass (SG) transition in the pseudobrookite system Fe 2 TiO 5 has been interpreted as arising from an induced, van der Waals-like, interaction among magnetic clusters. Here we present susceptibility ( )…
View article: Influence of Light Atoms on Quantification of Atomic Column Positions in Distorted Perovskites with HAADF-STEM
Influence of Light Atoms on Quantification of Atomic Column Positions in Distorted Perovskites with HAADF-STEM Open
Measurement of picometer-scale atomic displacements by aberration-corrected STEM has become invaluable in the study of crystalline materials, where it can elucidate ordering mechanisms and local heterogeneities. HAADF-STEM imaging, often u…
View article: Low temperature dynamic polaron liquid in a manganite exhibiting colossal magnetoresistance
Low temperature dynamic polaron liquid in a manganite exhibiting colossal magnetoresistance Open
Polarons - fermionic charge carriers bearing a strong companion lattice deformation - exhibit a natural tendency for self-localization due to the recursive interaction between electrons and the lattice. While polarons are ubiquitous in ins…
View article: Electronic structure of Co <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:mn>3</mml:mn><mml:mi>d</mml:mi></mml:mrow></mml:math> states in the Kitaev material candidate honeycomb cobaltate <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:mrow><mml:msub><mml:mi>Na</mml:mi><mml:mn>3</mml:mn></mml:msub><mml:msub><mml:mi>Co</mml:mi><mml:mn>2</mml:mn></mml:msub><mml:msub><mml:mi>SbO</mml:mi><mml:mn>6</mml:mn></mml:msub></mml:mrow></mml:math> probed with x-ray dichroism
Electronic structure of Co states in the Kitaev material candidate honeycomb cobaltate probed with x-ray dichroism Open
The recent prediction that honeycomb lattices of Co2+ (3d7) ions could host dominant Kitaev interactions provides an exciting direction for exploration of new routes to stabilizing Kitaev’s quantum spin liquid in real…
View article: Visualizing the Effect of Oxidation on Magnetic Domain Behavior of Nanoscale Fe<sub>3</sub>GeTe<sub>2</sub> for Applications in Spintronics
Visualizing the Effect of Oxidation on Magnetic Domain Behavior of Nanoscale Fe<sub>3</sub>GeTe<sub>2</sub> for Applications in Spintronics Open
Magnetic van der Waals (vdW) materials offer an opportunity to design heterostructures that will lead to exotic functionalities that arise from interfacial interaction. In addition to coupling to different vdW materials, the naturally oxid…
View article: Tunable superconductivity and its origin at KTaO3 interfaces
Tunable superconductivity and its origin at KTaO3 interfaces Open
View article: Electronic structure and correlations in planar trilayer nickelate Pr <sub>4</sub> Ni <sub>3</sub> O <sub>8</sub>
Electronic structure and correlations in planar trilayer nickelate Pr <sub>4</sub> Ni <sub>3</sub> O <sub>8</sub> Open
The discovery of superconductivity in planar nickelates raises the question of how the electronic structure and correlations of Ni 1+ compounds compare to those of the Cu 2+ cuprate superconductors. Here, we present an angle-resolved photo…
View article: In-Situ Preparation of Double Z-Scheme Ag6si2o7/Nh2-Mil-125(Ti)/C3n4 Composite for Visible-Light Photocatalytic Degradation of Organic Pollutants in Water
In-Situ Preparation of Double Z-Scheme Ag6si2o7/Nh2-Mil-125(Ti)/C3n4 Composite for Visible-Light Photocatalytic Degradation of Organic Pollutants in Water Open
View article: Structure Regulation Induced by Adding Bismuth Nitrate in the Mil-101(Fe) Preparation and its Effects on Adsorption-Photocatalytic Performance for Micro-Organic Contaminants
Structure Regulation Induced by Adding Bismuth Nitrate in the Mil-101(Fe) Preparation and its Effects on Adsorption-Photocatalytic Performance for Micro-Organic Contaminants Open
View article: Synthesis of a Magnetic Carnation-like Hydroxyapatite/Basic Calcium Carbonate Nanocomposite and Its Adsorption Behaviors for Lead Ions in Water
Synthesis of a Magnetic Carnation-like Hydroxyapatite/Basic Calcium Carbonate Nanocomposite and Its Adsorption Behaviors for Lead Ions in Water Open
Calcium-enriched compounds have great potential in the treatment of heavy-metal contaminated wastewater. Preparing stable basic calcium carbonate (BCC), which is a calcium-enriched compound, and applying it in practice is a great challenge…
View article: Bootstrapped Dimensional Crossover of a Spin Density Wave
Bootstrapped Dimensional Crossover of a Spin Density Wave Open
Quantum materials display rich and myriad types of magnetic, electronic, and structural ordering, often with these ordering modes either competing with one another or 'intertwining', that is, reinforcing one another. Low dimensional quantu…
View article: Active and passive defects in tetragonal tungsten bronze relaxor ferroelectrics
Active and passive defects in tetragonal tungsten bronze relaxor ferroelectrics Open
Tetragonal tungsten bronze (TTB) based oxides constitute a large family of dielectric materials which are known to exhibit complex distortions producing incommensurately modulated superstructures as well as significant local deviations fro…
View article: Essential role of magnetic frustration in the phase diagrams of doped cobaltites
Essential role of magnetic frustration in the phase diagrams of doped cobaltites Open
Doped perovskite cobaltites (e.g., La1–xSrxCoO3) have been extensively studied for their spin-state physics, electronic inhomogeneity, and insulator-metal transitions. Ferromagnetically interacting spin-sta…