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Magnetic and magnetotransport of amorphous U-As films : The 5th Joint MMM−Intermag Conference (1991)

Plaskett, T. S. ; McGuire, T. R. ; Fumagalli, P. ; [et al.]

[S.l.] : American Institute of Physics (AIP)

Journal of Applied Physics 70 (1991), S. 5855-5857

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ISSN: 1089-7550

Source: AIP Digital Archive

Topics: Physics

Notes: Amorphous thin films of UxAs100−x are ferromagnetic for U-rich compositions, 49≤x≤75, with a magnetic moment of 0.2 to 0.4 μB per U atom and Curie temperatures, Tc, up to 120 K. Large resistivities are found at 5 K for compositions x〈51, indicating semiconducting properties for low U content. For the highest Tc, the anomalous Hall angle is θH = 12° and the anomalous Hall coefficient is RS ≈ 10−7 Ω cm/G. Maximum polar Kerr rotation for U62As38 is −2.0° at 1-eV photon energy. The properties of U-As amorphous films are similar in many respects to those of amorphous U-Sb, except that the maximum values of these properties occur at higher U contents. The results are discussed in terms of spin-orbit interactions.

Type of Medium: Electronic Resource

URL: http://dx.doi.org/10.1063/1.350135

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