Yifeng Han

Magneto-Structural Coupling Enables Cryogenic Cation Redistribution in a Spinel Oxide

Yifeng Han, Yixing Zhao, Yunbo Ou, Feiran Shen et autres

Ionic transport in oxides is generally frozen at cryogenic temperatures, where thermal energy lies far below typical cation-migration barriers. Neutron powder diffraction reveals progressive Fe/Mg redistribution between tetrahedral (A) and octahedral (B) sites in the spinel Mg0.5Fe0.5TiFeO4 upon cooling from 200 K …

Regulating oxygen content and superconductivity in La$_3$Ni$_2$O$_{7+δ}$

Peiyue Ma, Jingyuan Li, Xing Huang, Yixing Zhao et autres

The synthesis of high-quality Ruddlesden-Popper (RP) nickelates remains challenging due to variations in oxygen content and the prevalence of intergrown RP phases. Precisely controlling the stoichiometry and characterizing the resulting physical properties are essential for understanding the mechanism of high-$T_c$ superconductivity in …

Regulating oxygen content and superconductivity in La$_3$Ni$_2$O$_{7+δ}$

Peiyue Ma, Jingyuan Li, Xing Huang, Yixing Zhao et autres

The synthesis of high-quality Ruddlesden-Popper (RP) nickelates remains challenging due to variations in oxygen content and the prevalence of intergrown RP phases. Precisely controlling the stoichiometry and characterizing the resulting physical properties are essential for understanding the mechanism of high-$T_c$ superconductivity in …

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Evolution of superconductivity evidence in pressurized La 3 − x Sm x Ni 2 O 7

Qingyi Zhong, Junfeng Chen, Zhengyang Qiu, Jingyuan Li et autres

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3D Unconventional Superconductivity in Bulk LaO

Zhifan Wang, JingKai Bi, Jiayuan Zhang, Wenmin Li et autres

Lanthanum-based compounds are cornerstones of superconductivity research, yet the La 5d orbitals typically remain empty spectator states far above the Fermi level ( E F ). While superconductivity has been induced in LaO up to 5.37 K in tensile epitaxy films, the …

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Stabilization of high-pressure metastable states by chemical approaches

Yifeng Han, Mei-Huan Zhao, Man‐Rong Li

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A Multiscale Ion‐Sieving Separator Toward Long‐Cycling Aqueous Zinc‐Based Batteries

Hao Tan, X. Li, Nobuyuki Sakai, Zihan Zhang et autres

Abstract A sandwich‐structured composite separator integrating ion selectivity and multi‐size sieving capabilities has been developed. Aqueous zinc‐ion batteries benefit from this ion modulation strategy, which effectively prevents the migration of undesired ions, non‐uniform Zn 2+ transport, and passivation/corrosion reactions caused by SO …

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Engineering TiO2/ZnS@MXene three-phase heterostructure for enhanced polysulfide capture and sulfur kinetics in high-performance lithium-sulfur batteries

Zihan Huang, Zhixuan Zhang, Yifeng Han, Liya Rong et autres

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Heuristic Engineering of Magnetic Mn4Ta2O9 Phases from High-Pressure and High-Temperature Synthesis

Shuang Zhao, Yifeng Han, Sihao Deng, Pengfei Tan et autres

Rational design and precise high-pressure and high-temperature (HPHT) synthesis of metastable oxides, such as polar magnets for desired functions, remain a long-standing challenge, which is largely dominated by thermodynamically controlled atomic-scale engineering of the local structure. Although cutting-edge research can reliably predict …

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Exposure to thiazole pesticides disrupts pathogens and undermines keystone status of rare taxa within bacterial ecological networks

Minghao Lv, Wenchong Shi, Jie Xu, Shidong He et autres

Considering the sensitivity of rare microbial taxa to environmental disturbances and their critical roles in ecosystems, it is essential to investigate how soil microbial communities (particularly rare microbes) respond to pesticide exposure. In this study, we found that thiazole pesticides significantly reduced …

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Agronomic practices-driven response of nitrogen-related microorganisms

Yifeng Han, Minghao Lv, Shidong He, Wenchong Shi et autres

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Effectively and completely separating the waste crystalline silicon photovoltaic modules via green solvothermal strategy

Shihao He, Kai Zhang, Wei Zhang, Jintao Li et autres

Crystalline silicon photovoltaic (PV) modules currently dominate the market due to their cost-effective and established technology. However, many of these modules are expected to be decommissioned soon. The solar cells within these modules, particularly the silver grid lines, possess considerable recycling value. …

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