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- W2050872473 abstract "The composition- and pressure-dependent magnetostructural properties of Tb${}_{5}$(Si${}_{x}$Ge${}_{1ensuremath{-}x}$)${}_{4}$ ($x$ $=$ 0.4, 0.485, 0.625, and 0.7) were investigated using x-ray powder diffraction and x-ray magnetic circular dichroism in a diamond anvil cell, respectively. Substituting the smaller-size Si for Ge stabilizes a single-phase, ferromagnetic (FM) orthorhombic O(I) structure for $x$ ensuremath{geqslant} 0.7. Similarly, application of external pressure causes a canted antiferromagnetic orthorhombic O(II) sample ($x$ $=$ 0.4) to transform into an FM O(I) phase at 4 GPa. The element- and orbital-specific x-ray absorption data indicate that the Tb 4$f$ orbital occupation changes with external pressure, likely through 4$f$-5$d$ electronic mixing, yet no changes in Tb 4$f$ electronic structure are observed with Si doping. The results point to different mechanisms behind the enhancement of FM exchange interactions in Tb${}_{5}$(Si${}_{x}$Ge${}_{1 x}$)${}_{4}$ with chemical and applied pressure, respectively." @default.
- W2050872473 created "2016-06-24" @default.
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- W2050872473 date "2011-03-28" @default.
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- W2050872473 title "Effect of Si doping and applied pressure upon magnetostructural properties of Tb<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow /><mml:mrow><mml:mn>5</mml:mn></mml:mrow></mml:msub></mml:mrow></mml:math>(Si<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow /><mml:mrow><mml:mi>x</mml:mi></mml:mrow></mml:msub></mml:mrow></mml:math>Ge<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML …" @default.
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- W2050872473 doi "https://doi.org/10.1103/physrevb.83.104419" @default.
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