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Precisely tunable high-entropy oxides (HEO) via controllable one-step combustion within a few seconds offers the rational design capability of optimal phases, structures and configurational entropy. The screened HEO-based anodes exhibit outstanding specific capacity (1165 mAh g⁻¹, 80.9% retention at 0.1 A g⁻¹_, and 791 mAh g⁻¹ even at 3 A g⁻¹), excellent rate capability, and stable cycling life (1252 mAh g⁻¹, 80.9% retention after 100 cycles at 0.2 A g⁻¹).

We observed a pressure-induced semiconductor-metal transition, which was followed by the emergence of superconductivity in the nonsymmorphic topological insulator KHgAs. The superconducting transition temperature reaches a maximum of approximately 6.6 K at 31.8 GPa, after which it slightly decreases up to 55 GPa. We identified the pressure-induced phase transitions and determined the structures of three high-pressure phases of KHgAs through structure prediction. Our findings establish the high-pressure phase diagram of the hourglass fermion compound KHgAs and demonstrate the potential coexistence of superconductivity with a topologically nontrivial feature protected by nonsymmorphic symmetries.

The low coercivity in Nd-Fe-B-based magnets, which is limited to around 20% of the anisotropy field (H_A) of the main phase, is a bottleneck for their usage at elevated temperatures. Herein, we overcome the limit and demonstrate a coercivity of 40% H_A by tuning the magnetism of grain boundaries, enabling their applications at elevated temperatures.

A two-dimensional array of magnetostrictive nanomagnets was used to demonstrate strong coupling between two different magnons (k_M1′ and k_M1′′) mediated by a phonon (k_ph). The coupling is strong, leading to the formation of a new quasi-particle – binary magnon-polaron. These two different magnons show 180° phase difference which is reminiscent of dark magnon modes. We show that it is possible to engineer this magnon-phonon coupling by choosing the frequency and wavelength of the acoustic wave to match the frequency and wavelength of the spin wave, the latter being controlled by a magnetic field.

The photodiode, FET, spintronic, piezoelectric, thermoplastic and molecular sensing applications of free-standing 2D GaN synthesized by sonochemical and Hummer’s method.

This work presents a design guide for anlog memristive devices for artificial synapses in neuromorphic computing. Ge implanted a-Si serves multiple fuctions to induce multifilamentary switching and prevent silicide formation. The linear synapse update behaviors were observed thanks to multi-filament formation, which was confirmed by TEM.

A facile and scalable approach was developed using ultrafine bubble (UFB)-assisted heteroagglomeration to fabricate high-concentration, impurity-free nanoceramic/metal composite powders for additive manufacturin. Individual ZrO₂ or Al₂O₃ nanoparticles up to ~10 wt% were homogeneously decorated on the surface of Ti-6Al-4V powders through the bridging effect of the negatively charged UFBs. The nanoceramics were completely decomposed and dissolved into the matrix upon laser irradiation; therefore, a unique Ti nanocomposite exhibiting both high strength and ductility was obtained.

We evaluated the liquid fragility and structural and dynamic heterogeneity of glassy solids. The most fragile alloy exhibited the maximum dynamic heterogeneity in the mechanical unfreezing process. We observed that atomic displacement significantly correlated with degrees of clustering of local atomic orders. The clustering produced during the glass-forming quenching process enhanced structural and dynamic heterogeneities. Therefore, there are correlations among liquid fragility, dynamic heterogeneity in liquid alloys, and dynamic and structural heterogeneities in glassy solids. In addition, the alloy with the most fragility exhibited the largest difference in atomic mobility between the densely and loosely packed local atomic orders.

A liquid–solid dual-phase magnetoactive microlattice metamaterial composed of flexible 3D-printed polymer shell and magnetorheological (MR) fluid has been designed and fabricated. The MR fluid-filled magnetoactive microlattices demonstrated remarkable recoverability (~50%) and be substantially stiffened in the presence of a magnetic field, with an ~200% increment in stiffness at 60 mT. Based on specific applications, the mechanical properties of this magnetoactive microlattice metamaterial can be modulated on demand, leading to certain programmable stress-strain behavior.

Drawing inspiration from the structural attributes of mussels, we have introduced a riveting layer into our hydrogel-plastic hybrids, facilitating robust bonding between hydrogel networks and plastic substrates. This work underscores the immense potential and advantages that this integration of hydrogels and plastics holds, especially in the development of intelligent robotics.

In this work, we report a strategy with which to realize efficient manipulation of CNT networks by forming double networks with branched polyethylenimine (PEI). The double network was highly viscoelastic and ductile and enabled efficient film stretching or creeping for CNT alignment, which dramatically improved the mechanical strengths of the CNT films. Due to viscous drag from the polymer network, the CNTs showed enhanced movability in reconstructing new networks, which made the film repairable. The repairability resulted from the branched polymeric structure. This double-networking strategy provides a new way to manipulate CNT assemblies for high-performance applications.

Despite enormous efforts by many research groups, Sr₂IrO₄ was found to stay remarkably insulating in thin film form. Now, a high-pressure oxygen annealing treatment on the Sr₂IrO₄ thin film realized the long-sought metallicity for the first time. An emerging transport phase diagram was deduced from the experiment that features an interplay between two states: the robust insulating state, which is likely dominated by the defect scattering effect of planar oxygen vacancies O(2), and the new metallic state, which likely reflects an intrinsic bulk-like property of the IrO₂ planes with effective electron doping due to apical oxygen vacancies O(1).

The single crystals of lithium rare earth fluorides exhibit remarkable magnetocaloric performance with a record-high entropy change of 16.73 J kg^-1 K^-1 achieved under a very small magnetic field of 5 kOe.

This paper introduces OPV, an organic semiconductor material, as a novel photosensitizer to kill intracellular bacteria that are infectious and antibiotic-resistant. It explains how OPV binds to bacterial membranes and produces reactive oxygen species by blue light, guiding photodynamic therapy design. It proves the excellent antibacterial effect of OPV against Porphyromonas gingivalis and MRSA in vitro and in vivo, without damaging normal cells or tissues, indicating good biocompatibility and safety. It also shows that OPV can be excited by dental blue light curing lamps, facilitating clinical applications.

Although the electrostatic tuning by three-terminal devices is generally weak for phase transition materials, it can control phases with much hither precision than temperature or pressure. This technique was applied to the scaled-down VO₂ metal-insulator transitions, where the material phase is controlled by the gate voltage. The crossover from continuous to binary transition with scaling down was demonstrated, and the critical channel length was given by domain boundary instability. Interestingly, below the critical channel length, the influence of the noncritical stimulus (drain voltage in this case) disappeared because the spatial degree of freedom is lost in the single-domain VO₂ channel.

The coexistence of ferroelectricity and ferromagnetism has been a traditional challenge for a long time. In this work, we propose a method of transition metal implantation into hybrid perovskites, which realizes the mutual regulation of magnetism and electricity, and obtains an obvious multiferroic magnetic-electric coupling effect. This study provides a new idea for realizing room-temperature magnetoelectric coupling of multiferroic materials employing ion implantation and paves the way for the realization of a new generation of spin-dependent electronic devices.

A modular assembly strategy has been demonstrated to construct metal nanoparticles functionalized mesoporous carbon two-dimensional (2D) nanosheets by organizing zero-dimensional (0D) spherical monomicelle modules on the 2D supporting blocks. The resultant materials exhibit an excellent electrocatalytic activity for oxygen reduction reaction, which holds a great potential as a catalyst for fuel cells.

SPHNs can effectively accumulate in solid tumor via magnetic-RGD dual-targeting effect for valid CDDP delivery, resulting in a significantly improved antitumor effect with minimal side effects.

This work aims to fabricate well-ordered nanonetwork Au through a bottom-up approach using templated electrochemical deposition for enhanced mechanical properties. As evidenced by nanoindentation and micro-compression tests, diamond-structured Au fabricated exhibits high reduced modulus and yield strength above the Hashin-Shtrikman upper bound due to the deliberate structuring and nanosized effects.