Matches in SemOpenAlex for { <https://semopenalex.org/work/W1637917687> ?p ?o ?g. }
- W1637917687 abstract "A series of polycrystalline samples of ${mathrm{Sr}}_{x}{mathrm{CoO}}_{2}$ $(0.15ensuremath{le}xensuremath{le}0.40)$ have been prepared by a low-temperature ion exchange technique. These ${mathrm{Sr}}_{x}{mathrm{CoO}}_{2}$ samples are isomorphic to ${mathrm{Na}}_{x}{mathrm{CoO}}_{2}$ with the hexagonal structure, but behave differently from ${mathrm{Na}}_{x}{mathrm{CoO}}_{2}$ with the change of cation concentration. For all the samples, the magnetic susceptibility decreases with increasing temperature and shows a Curie-Weiss behavior at high temperatures. The low-temperature magnetic susceptibility can be changed considerably by an applied field. The specific-heat coefficient $ensuremath{gamma}=C∕T$ of ${mathrm{Sr}}_{x}{mathrm{CoO}}_{2}$ as a function of ${T}^{2}$ turns downwards at low temperatures. This is different from the upturn behavior of low-temperature $ensuremath{gamma}$ in ${mathrm{Na}}_{x}{mathrm{CoO}}_{2}$. The resistivity of ${mathrm{Sr}}_{x}{mathrm{CoO}}_{2}$ changes significantly with the strontium content $x$. An insulating to metallic crossover or transition is observed with increasing $x$." @default.
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- W1637917687 date "2006-10-30" @default.
- W1637917687 modified "2023-10-16" @default.
- W1637917687 title "Low-temperature magnetic and transport properties of layered<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mi>Sr</mml:mi><mml:mi>x</mml:mi></mml:msub><mml:msub><mml:mi>CoO</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:mrow></mml:math>" @default.
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- W1637917687 doi "https://doi.org/10.1103/physrevb.74.155129" @default.
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