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- W2023222520 abstract "Resistivity vs hydrostatic pressure has been measured at room temperature for several EuO samples which span a large range of resistivity. We show that the pressure coefficient of activation energy of resistivity β = KT (d log ϱ/d p) varies continuously with room temperature resistivity. The samples which present an insulator-metal Transition have unusual values of β. We relate these values to the presence of bound magnetic polaron or molecular bound magnetic polaron. Nous avons mesuréla résistivitéd'échantillons d'EuO en fonction de la pression hydrostatiqueàtempérature ambiante, dans une large gamme de résistivité. Nous montrons que le coefficient de pression de l'énergie d'activation de la résistivité β=dLogρdp varie continuement avec la résistivitéà300° K. Pour leséchantillons présentant la transition Isolant-Métal, β a un comportement particulier en fonction de ϱ que nous avons reliéàla présence de “Bound Magnetic Polaron ou de Molecular Bound Magnetic Polarons”." @default.
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- W2023222520 date "1977-02-01" @default.
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- W2023222520 title "Anomalies in transport properties of EuO under hydrostatic pressure due to bound magnetic polaron" @default.
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- W2023222520 doi "https://doi.org/10.1016/0038-1098(77)91370-9" @default.
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