20 research outputs found

    Magnetoresistance and efficiency measurements of Alq(3)-based OLEDs

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    Copyright 2007 by the American Physical Society. Article is available at

    High-resolution Delta-e Measurements Of Fe-si-b Amorphous Wire

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    Structure and magnetism in compressed iron-cobalt alloys

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    ""Combined Co K-edge XANES-XMCD and XRD measurements were used to shed light on the magnetic. and structural phase diagram of the Fe1−xCox alloy under HP in the Co-rich region (x ≥ 0.5). At 0.5 ≤ x ≤ 0.75, the alloy shows a pressure-induced structural\\\/magnetic phase transition from bcc-FM to hcpnon-. FM phase just like pure iron but at higher pressures. The x = 0.9 sample has an fcc structure in the. pressure range investigated but presents an FM to non-FM transition at P = 64 GPa, a significantly lower. pressure compared with pure Co (predicted ≈120 GPa), showing that Fe impurities strongly affect the HP. Co response."

    Structure and magnetism in compressed iron-cobalt alloys

    No full text
    Combined Co K-edge XANES-XMCD and XRD measurements were used to shed light on the magnetic and structural phase diagram of the Fe1-xCox alloy under HP in the Co-rich region (x epsilon 0.5). At 0.5x0.75, the alloy shows a pressure-induced structural/magnetic phase transition from bcc-FM to hcp-non-FM phase just like pure iron but at higher pressures. The x=0.9 sample has an fcc structure in the pressure range investigated but presents an FM to non-FM transition at P=64GPa, a significantly lower pressure compared with pure Co (predicted approximate to 120GPa), showing that Fe impurities strongly affect the HP Co response
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