The Optimization of the Luminescence Intensity Ratio in the YVO4:Er3+,Nd3+ Phosphors within the First and Second Biological Windows 来源：ACS PublicationsThe optimization of the host materials is one of the methods that could be used to improve the relative sensitivity of luminescent thermometers. Here, we show the host optimization emission of Er3+ and Nd3+ ions in the YVO4 phosphors produced by a modified sol–gel route using glucose as a polymerizing agent. X-ray diffraction (XRD) was realized to analyze the formation of the crystalline phase. We found that the emission ratio depends on the siz...
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2026
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来源：ACS PublicationsIn the pyrochemical reprocessing of used nuclear fuel, understanding the effects of ionizing radiation on the chemical behavior of fission products in molten chloride eutectic salt is crucial. This study investigates the impact of radiation on the chemical and kinetic speciation of Nd ions in molten LiCl-KCl eutectic, which are challenging to separate due to their multivalent oxidation states and comproportionation reactions. Electron pulse radiolysis techniques were used to determine transient absorption spectra, chemical kinetics, and activation parameters for the reaction...
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2026
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Magnetocrystalline Anisotropy Enables Field-Free Deterministic Switching in Tm3Fe5O12/Pt Bilayers: An Atomistic Spin Dynamics Study来源：ACS PublicationsDeterministic and field-free switching of perpendicular magnetization remains a key challenge for scalable and energy-efficient spintronic memory. Here, we employ atomistic spin dynamics simulations to uncover the microscopic mechanism behind the recently observed 3-fold rotation and mirror (3m) -symmetric switching in epitaxial (111)-oriented Tm3Fe5O12 (TmIG)/Pt bilayers. We show that intrinsic cubic magnetocrystalline anisotropy (MCA) of TmIG s...
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2026
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来源：ACS PublicationsThe development of reliable luminescent nanothermometers for cryogenic applications is essential for advancing quantum technologies, superconducting systems, and other fields that require precise, high-spatial-resolution temperature monitoring. Lanthanide-doped systems are vastly employed to this purpose, and typically perform optimally at or above room temperature when manifold-to-manifold transitions are used. In this work we exploit individual Stark sublevels to demonstrate an optical Boltzmann thermometer based on Er3+/Yb3+ codoped yttria (Y2O3) nanoparticles that operat...
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2026
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