Compensation-Like Temperature and Spin-Flip Switch in Strained Thulium Iron Garnet Thin Films: Tuning Sublattice Interactions for Ferrimagnetic Spintronics 来源:ACS PublicationsCertain rare-earth iron garnet (RIG) thin films combine desirable properties such as low magnetic damping, high magnetostriction, and, in some cases, perpendicular magnetic anisotropy (PMA), making them attractive for spintronics applications. However, the interplay between their magnetic sublattices in confined films remains poorly explored, particularly the coupling between 3d and 4f electrons. Here, we investigate...
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2025
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Computational Investigations of Metal–Metal Bonding in Molecular Thorium Compounds and Ce and Group IV Analogues来源:ACS PublicationsWe report quantum chemical investigations of metal–metal bonding in molecular thorium clusters and compare them with cerium and group IV transition metal analogues. We explore periodic trends in metal–metal bonding and the roles of electron delocalization, orbital diffuseness, and oxidation state. As cluster size increases in the series [{Th(η8-COT)Cl2}nK2] (COT = C8H8, n = 2–5, 2–5) and [Th4Cl4(η8-COT)4]2+ (T), n-center-2-electron bonding weakens. Quantum theory o...
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2025
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来源:ACS PublicationsThe reaction between isophthalic acid (H2L1) and Gd(NO3)3·6H2O leads to the formation of a two-dimensional (2D) extended framework with the molecular formula [Gd2(L1)3(H2O)2]n (1). Complex 1 crystallizes in monoclinic space group P21/n. The compound undergoes a reversible crystalline-to-amorphous phase transition. Magnetic susceptibility measurements on a polycrystalline sample of 1 reveal a weak ferromagnetic interaction between the Gd(III) centers below 20 K. Analysis of the magnetic data using the Fisher chain model indicates an exchange interaction strength (J) of +...
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2025
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来源:ACS PublicationsA straightforward synthesis of Cp*2Sc(AlMe4) (Cp* = C5Me5) applying Cp*2ScCl(thf) and LiAlMe4/AlMe3 is described. Donor-assisted trimethyltriel exchange gives access to Cp*2Sc(EMe4) (E = Ga, In), which represent the first scandium tetramethylgallate and tetramethylindate complexes. Thermal treatment of Cp*2Sc(EMe4) (E = Ga, In) in benzene leads to the isolation of methylidene clusters Cp*6Sc4E8(CH2)12Me6 (E = Ga, In). This methyl group deprotonation differs from the benzene activation previously observed for Cp*2Y(EMe4) (E = Al, Ga). Treatment of Cp*2Sc(EMe4) (E = Al, Ga) wi...
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2025
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