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• W2063764120 abstract "Among versatile perovskite manganites showing colossal magnetoresistance (CMR), ${text{Eu}}_{1ensuremath{-}x}{text{Sr}}_{x}{text{MnO}}_{3}$ around $xensuremath{sim}0.4$ shows the ferromagnetic metal with the lowest transition temperature $(ensuremath{sim}40text{ }text{K})$ due to the narrowest one-electron bandwidth and hence is readily subject to the drastic phase changes with variations in temperature, magnetic field, and hole doping $(x)$. We have investigated the variation in the electronic state with $x$ with use of single crystals. As $x$ increases, the ferromagnetic metal at $0.38ensuremath{le}xensuremath{le}0.47$ changes to a spin-glasslike insulator at $0.48ensuremath{le}xensuremath{le}0.5$, the layered antiferromagnetic (A-type) state at $0.51ensuremath{le}x<0.6$, and the chained antiferromagnetic (C-type) state at $0.6ensuremath{le}x$, respectively. Due to the increased disorder upon alloying of Eu/Sr, the charge/orbital ordering with the modulation vector (0, $q$, 0) with $q=1/2$ in the orthorhombic $Pbnm$ setting (${a}_{0}ensuremath{sim}{b}_{0}ensuremath{sim}{c}_{0}/ensuremath{surd}2ensuremath{sim}ensuremath{surd}2{a}_{text{p}}$, ${a}_{text{p}}$ being the lattice parameter of the pseudocubic lattice) cannot be formed in a long range but remains short ranged. In the vicinity of $x=0.5$, an application of an external magnetic field removes such short-range charge/orbital ordering $(q=1/2)$ to cause an insulator to metal transition or CMR. In a broad range of $x$ $(0.55ensuremath{le}xensuremath{le}0.59)$, the critical temperature for the layered antiferromagnetic state is relatively lowered and alternatively the charge/orbital ordering with $qensuremath{sim}1/3$ becomes to be visible. It has also been found that the modulation is temperature dependent; commensurate with $qensuremath{sim}1/3$ upon the transition while incommensurate with $q>1/3$ at low temperatures." @default.
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• W2063764120 date "2009-11-17" @default.
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• W2063764120 title "Magnetic and electronic properties of<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow><mml:mtext>Eu</mml:mtext></mml:mrow><mml:mrow><mml:mn>1</mml:mn><mml:mo>−</mml:mo><mml:mi>x</mml:mi></mml:mrow></mml:msub><mml:msub><mml:mrow><mml:mtext>Sr</mml:mtext></mml:mrow><mml:mi>x</mml:mi></mml:msub><mml:msub><mml:mrow><mml:mtext>MnO</mml:mtext></mml:mrow><mml:mn>3</mml:mn></mml:msub></mml:mrow></mml:math><mml:math xmlns:mml=http://www.w3.org/1998…" @default.
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• W2063764120 doi "https://doi.org/10.1103/physrevb.80.174414" @default.
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