Non-Thermal Phonon Dynamics and Excitonic Condensed States Probed by Surface-Sensitive Electron Diffraction Background Introduction The interaction between excitons and phonons determines the energy flow in photo-excited materials and controls the emergence of related phases. With the advancement of materials science, electron or X-ray pulse techni...

Large Electron-Mediated Phonon Nonlinearity in Semiconductor-Piezoelectric Heterostructures In modern science and technology, the efficiency and determinacy of information processing are crucial determinants of its application potential. Nonlinear photonic interactions at optical frequencies have already demonstrated significant breakthroughs in bo...

Electrochemical Mechanical Failure Caused by Rotational Stacking Faults in Layered Oxide Cathodes Background Electrochemical mechanical degradation is one of the primary causes of capacity decline in high energy density cathode materials, especially those based on intercalated layered oxides. This paper reveals the presence of Rotational Stacking F...

Report on the Study of Quantum Coherent Spins in Hexagonal Boron Nitride at Room Temperature Introduction The realization of quantum networks and sensors requires solid-state spin-photon interfaces that possess single-photon emission capabilities and long-lived spin coherence, which can be integrated into scalable devices. Ideally, these devices sh...

Electron-Nucleus Dynamics Study of Photocatalytic Water Splitting on Rutile Titanium Dioxide Surface Background and Motivation Photocatalytic water splitting is one of the important applications of photocatalytic technology, while titanium dioxide (TiO₂) is a photocatalytic material with significant application potential. Although TiO₂ performs rem...

Study on Electric-field-induced Multiferroic Topological Solitons in BiFeO3 Thin Films Academic Background Topologically protected magnetic structures in magnetic materials are predicted to be powerful tools for topological information technology. However, future magnetic soliton technology may rely more on antiferromagnetic materials due to their ...

Study Report on the Formation of Exciton Polarons and High Carrier Relaxation in Rigid Dion–Jacobson Type Two-Dimensional Perovskite Two-dimensional organic-inorganic hybrid perovskites (HOIPs) have garnered widespread attention due to their strongly confined exciton states and reduced dielectric screening effects resulting from their two-dimension...

Optimal Working Point of Heavy Hole Spin Qubit in Germanium and Its High Anisotropic Noise Sensitivity Background and Motivation The development of quantum computers holds great promise for solving complex problems. However, building a fault-tolerant quantum computer requires the integration of a large number of highly coherent qubits. Spin qubits,...

In recent years, fuel cells, as a clean and renewable energy technology, have garnered widespread attention. However, the extensive application of fuel cells faces the challenge of the stability of oxygen reduction reaction (ORR) electrocatalysts. L10-structured intermetallic nanocrystals (INCs) with chemically ordered structures, due to their lowe...

Research Progress on Programmable Topological Photonic Chips Research Background In recent years, topological insulators (TI) have garnered significant attention in the physics community due to their rich physical mechanisms and the potential applications of topological boundary modes, leading to rapid development in this field. Since the discovery...