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Permanent Electride Magnets Induced by Quasi-Atomic Non-Nucleus-Bound Electrons.
Adv Mater
January 2025
Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Republic of Korea.
Article Synopsis
- Interstitial quasi-atomic electrons (IQEs) significantly influence the magnetism of crystalline electrides, with their own magnetic moments affected by nearby cations.
- Weak spin-orbit coupling and limited interactions prevent these systems from achieving hard magnetism, presenting a challenge for stronger magnetic properties.
- However, certain 2D electrides, like [ReC]·2e, exhibit permanent magnetism by creating a ferrimagnetic state and demonstrate high coercivity due to the interaction between Re-spin and IQE-spin lattices.
Recent Progress in Atomically Precise Cu-M Alloy Nanoclusters.
Chemistry
December 2024
Huazhong University of Science and Technology, School of Materials Science and Engineering, CHINA.
Metal nanoclusters (NCs) with dimensions of approximately 3 nm serve as a crucial link between metal-organic complexes and metal nanoparticles, garnering significant interest due to their distinctive molecule-like characteristics. These include well-defined molecular structures, clear HOMO-LUMO transitions, quantized charge, and robust luminescence emission. Atomically precise alloy NCs, in contrast to homometallic NCs, exhibit a wealth of structures and intriguing properties, with their novel attributes often intricately tied to the positions of alloyed elements within the structure, facilitating the exploration of structure-property relationships.
View Article and Find Full Text PDFInterfacial Electronic Charge Trapping and Photonic Carrier Excitation Coupling in Solution-Processed Zinc-Tin Oxide Thin-Film Transistors Applied for Logic Gate Design and Quantized Neural Network.
ACS Appl Mater Interfaces
January 2025
Department of Materials Science and Engineering, National Cheng Kung University, Tainan 70101, Taiwan.
Components needed in Artificial Intelligence with a higher information capacity are critically needed and have garnered significant attention at the forefront of information technology. This study utilizes solution-processed zinc-tin oxide (ZTO) thin-film phototransistors and modulates the values of , which allows for the regulation of electron trapping/detrapping at the ZTO/SiO interface. By coupling the excited photonic carrier and electronic trapping, logic gates such as "AND," "OR," "NAND," and "NOR" can be achieved.
View Article and Find Full Text PDFNonlinear edge transport in a quantum Hall system.
Sci Adv
October 2024
RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama 351-0198, Japan.
Nonlinear transport phenomena in condensed matter reflect the geometric nature, quantum coherence, and many-body correlation of electronic states. Electric currents in solids are classified into (i) ohmic current, (ii) supercurrent, and (iii) geometric or topological current. While the nonlinear current-voltage (-) characteristics of the former two categories have been extensive research topics recently, those of the last category remains unexplored.
View Article and Find Full Text PDFA nanowell-based MoS neuroelectrode for high-sensitivity neural recording.
iScience
October 2024
Tianjin Key Laboratory of Brain Science and Neural Engineering, Academy of Medical Engineering and Translational Medicine, Tianjin University, Tianjin 300072, China.
Article Synopsis
- Implantable neural electrodes are important for diagnosing and treating neurological conditions, but they face challenges like high impedance and noise that hampers signal clarity.
- Researchers developed improved 2D MoS electrodes by adding MoS nanosheets, which helped enhance sensitivity and biocompatibility in recording brain signals.
- The new electrodes demonstrated a significant boost in performance, including a 17.7-fold increase in catalytic activity and a 4.7-fold increase in sensitivity for specific brain rhythms, offering promising methods for better diagnosis of neurological disorders.
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