Matches in SemOpenAlex for { <https://semopenalex.org/work/W1520791897> ?p ?o ?g. }
- W1520791897 abstract "A series of eight ${mathrm{AMnO}}_{3}$ perovskites in which the A-cation sites are occupied by a distribution of 70% trivalent lanthanide and 30% divalent Ca, Sr, or Ba ions has been prepared. These all have a mean A-cation radius of 1.20 AA{}, but different values of the size variance ${ensuremath{sigma}}^{2}.$ All of the samples show resistive and magnetic transitions from a ferromagnetic metallic to a paramagnetic insulating phase. An abrupt change from orbital disorder to order (cooperative Jahn--Teller distortions) in the insulating regime at ${ensuremath{sigma}}^{2}ensuremath{approx}0.005{AA{}}^{2}$ is evidenced by anomalies in the unit cell parameters and conductivity and magnetization data. The dependence of the metal-insulator transition temperature upon A-cation distribution in these and other 30% doped compositions are compared against a simple model and displayed in a general phase diagram." @default.
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- W1520791897 date "2000-12-20" @default.
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- W1520791897 title "Disorder-induced orbital ordering in<mml:math xmlns:mml=http://www.w3.org/1998/Math/MathML display=inline><mml:mrow><mml:msub><mml:mrow><mml:mi>L</mml:mi></mml:mrow><mml:mrow><mml:mn>0.7</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi>M</mml:mi></mml:mrow><mml:mrow><mml:mn>0.3</mml:mn></mml:mrow></mml:msub></mml:mrow><mml:mrow><mml:msub><mml:mrow><mml:mi mathvariant=normal>MnO</mml:mi></mml:mrow><mml:mrow><mml:mn>3</mml:mn></mml:mrow></mml:msub></mml:mrow></…" @default.
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- W1520791897 doi "https://doi.org/10.1103/physrevb.63.024424" @default.
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