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- W1970433216 abstract "The crystal structure and magnetic properties of $mathrm{Sr}{mathrm{Ru}}_{1ensuremath{-}v}{mathrm{O}}_{3}$ samples annealed in air $(v=0)$ and high oxygen pressure ($v=0.02$ and 0.09) were studied as a function of temperature between $10phantom{rule{0.3em}{0ex}}mathrm{K}$ and room temperature. Neutron powder diffraction analysis revealed that below ${T}_{C}=163phantom{rule{0.3em}{0ex}}mathrm{K}$ the $b$ and $c$ lattice parameters and the unit cell volume are virtually temperature independent for the stoichiometric material whereas this behavior is less pronounced in the Ru-deficient samples with decreased ${T}_{C}=135phantom{rule{0.3em}{0ex}}mathrm{K}$ and $82phantom{rule{0.3em}{0ex}}mathrm{K}$. We show that this previously reported Invar effect below the ferromagnetic ordering temperature originates from freezing of the octahedral tilting about the [001] axis that can be observed for both stoichiometric and Ru-deficient samples. Spontaneous magnetostriction has the largest effect on the $b$ axis of the orthorhombic $Pbnm$ crystal structure." @default.
- W1970433216 created "2016-06-24" @default.
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- W1970433216 date "2005-03-21" @default.
- W1970433216 modified "2023-10-18" @default.
- W1970433216 title "Freezing of octahedral tilts below the Curie temperature in<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:mi mathvariant=normal>Sr</mml:mi><mml:msub><mml:mi mathvariant=normal>Ru</mml:mi><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>v</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mi mathvariant=normal>O</mml:mi><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math>perovskites" @default.
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- W1970433216 doi "https://doi.org/10.1103/physrevb.71.104411" @default.
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