A5100462313- Molecular Junctions and Nanostructures
- Graphene research and applications
- Fusion materials and technologies
- Surface Chemistry and Catalysis
- Magnetic confinement fusion research
- Advanced Chemical Physics Studies
- Quantum and electron transport phenomena
- Superconducting Materials and Applications
- 2D Materials and Applications
- Advancements in Battery Materials
- Free Radicals and Antioxidants
- Electronic and Structural Properties of Oxides
- Natural Language Processing Techniques
- Topic Modeling
- Surface and Thin Film Phenomena
- Iron-based superconductors research
- Physics of Superconductivity and Magnetism
- Topological Materials and Phenomena
- Orbital Angular Momentum in Optics
- Pulsars and Gravitational Waves Research
- Magnetic and transport properties of perovskites and related materials
- Nerve injury and regeneration
- X-ray Diffraction in Crystallography
- Material Dynamics and Properties
- Gamma-ray bursts and supernovae
Ministry of Agriculture and Rural Affairs
2021-2025
Huazhong Agricultural University
2018-2025
Nanchang Center for Disease Control and Prevention
2023-2025
Soochow University
2019-2025
First Affiliated Hospital of Soochow University
2019-2025
Inner Mongolia University
2012-2025
Hubei Provincial Water Resources and Hydropower Planning Survey and Design Institute
2025
National Laboratory for Superconductivity
2008-2024
Institute of Physics
2015-2024
Chinese Academy of Sciences
2015-2024
We report that the Kondo effect exerted by a magnetic ion depends on its chemical environment. A cobalt phthalocyanine molecule adsorbed an Au111 surface exhibited no effect. Cutting away eight hydrogen atoms from with voltage pulses scanning tunneling microscope tip allowed four orbitals of this to chemically bond gold substrate. The localized spin was recovered in artificial molecular structure, and clear resonance observed near Fermi surface. attribute high temperature (more than 200...
We have studied the organometallic intermediate of a surface-supported Ullmann coupling reaction from 4, 4″-dibromo-p-terphenyl to poly(para-phenylene) by scanning tunneling microscopy/spectroscopy and density functional theory calculations. Our study reveals at single-molecular level that consists biradical terphenyl (ph)(3) units are connected single Cu atoms through C-Cu-C bridges. Upon further increasing temperature, neighboring coupled C-C bonds forming oligomers while released.
Tellurium (Te) films with monolayer and few-layer thickness are obtained by molecular beam epitaxy on a graphene/6H-SiC(0001) substrate investigated in situ scanning tunneling microscopy spectroscopy (STM/STS). We reveal that the Te composed of parallel-arranged helical chains flat-lying graphene surface, exposing (1x1) facet (10-10) bulk crystal. The band gap increases monotonically decreasing thickness, reaching ~0.92 eV for Te. An explicit bending at edge between is visualized. With...
The influence of 10 cationic (Mg, Ti, V, Nb, Fe, Ru, Co, Ni, Cu and Al) 2 anionic (N F) dopants on the phase stability, redox potential, ionic electronic conductivity both Li<sub>2</sub>MnO<sub>3</sub> LiMnO<sub>2</sub> phases have been investigated using density functional theory.
The significant role of interfacial coupling in the enhancement superconductivity FeSe films on ${\mathrm{SrTiO}}_{3}$ has been widely recognized, but explicit origin this is yet to be identified. Here, by surface phonon measurements using high-resolution electron energy loss spectroscopy, we found electric field generated Fuchs-Kliewer (F-K) modes can penetrate into and strongly interact with electrons therein. mode-specific electron-phonon constant for $\ensuremath{\sim}92$ meV F-K...
Using a scanning tunneling microscope, we measured high-bias conductance of single polyporphyrin molecular wires with lengths from 1.3 to 13 nm. We observed several remarkable transport characteristics, including multiple sharp peaks, conductances as high 20 nS in >10 nm, and nearly length-independent (attenuation <0.001 Å–1). carried out first-principles simulations on myriad metal–molecule–metal junctions. The revealed that the is coherent resonant via delocalized orbital.
The prevalence of wide-bandgap (WBG) semiconductors allows modern electronic devices to operate at much higher frequencies. However, development soft magnetic materials with high-frequency properties matching the WBG-based remains challenging. Here, a promising nanocrystalline-amorphous composite alloy normal composition Fe75.5 Co0.5 Mo0.5 Cu1 Nb1.5 Si13 B8 in atomic percent is reported, which producible under industrial conditions, and shows an exceptionally high permeability frequencies up...
The adsorption and reaction of 4,4″-dibromo-para-terphenyl (DBTP) 1,3,5-tris(4-bromophenyl)benzene (TBB) on Cu(111) surface were studied with X-ray photoelectron spectroscopy (XPS), ultraviolet (UPS), density functional theory (DFT) calculations. In addition, complementary scanning tunneling microscopy (STM) data are presented. At submonolayer coverage, scission C–Br bonds occurs between 170 240 K. estimated activation energy for this process is considerably lower than the bond energy,...
Plasmon modes in graphene are influenced by the unusual dispersion relation of material. For bulk plasmons this results a ${n}^{1/4}$ dependence plasma frequency on charge density, as opposed to ${n}^{1/2}$ two-dimensional electron gas (2DEG); yet, plasmon follows similar ${q}^{1/2}$ behavior for other materials. In work we consider finite nanostructures, semi-infinite sheets, and circular disks study edge that confined boundaries structures. We find that, abrupt edges, behave analogously...
The observation of substantially enhanced superconductivity single-layer FeSe films on ${\mathrm{SrTiO}}_{3}$ has stimulated intensive research interest. At present, conclusive experimental data the corresponding electron-boson interaction is still missing. Here we use inelastic electron scattering spectroscopy and angle resolved photoemission to show that electrons in these systems are dressed by strongly polarized lattice distortions ${\mathrm{SrTiO}}_{3}$, indispensable nonadiabatic...
We image local structural rearrangements in soft colloidal glasses under small periodic perturbations induced by thermal cycling. Local entropy ${S}_{2}$ positively correlates with observed glasses. The high values of the rearranging clusters indicate that fragile regions are structurally less correlated, similar to defects crystalline solids. Slow-evolving spots capable predicting long before relaxations occur, while fluctuation-created best correlate deformations right rearrangement...
Due to the diversity of molecular building blocks, two-dimensional (2D) metal-organic frameworks (MOFs) are ideal platforms realize exotic lattice models in condensed matter theory. In this work, we demonstrate universal existence topological corner states 2D MOFs with a star configuration, and confirm intriguing higher-order nontrivial topology energy window between two Kagome-bands, or Dirac-band four-band. Furthermore, combining first-principles calculations scanning tunneling microscopy...
A novel carbon allotrope consisting of parallel zigzag and armchair chains alternatively each other (10 atoms/cell, named pza-C10) was discovered. The calculated band gap pza-C10 is 0.31 (0.71) eV with PBE (HSE06), thus the new member family a semiconductor. sheet not only thermodynamically more stable than known semiconducting sheets, but also it can perfectly graft graphene. unprecedented properties provide approach modulating intrinsic through forming graphene-based monolayer...
Observations of 10 Compact Symmetric Object (CSO) candidates have been made with the Very Long Baseline Array (VLBA) at 8.4 GHz in 2005 and a combined Chinese European Interferometry (VLBI) array 2009. The 2009 observations incorporate for first time two new telescopes Miyun Kunming international astrophysical observations. observational data, combination archival VLBA data from previous epochs, used to derive proper motions VLBI components. Because long baseline ∼16 years sets, expansion...