Abstract
Topological properties of the Fermi surfaces of UIr3 and UGe3 were investigated. UIr3 is an uncompensated metal with open orbits along 〈110〉. This is in agreement with a proposed model of Arko and Koelling, based on augmented-plane-wave (APW) calculations. UGe3 is a compensated metal, which showed nearly quadratic magnetoresistance behavior for all field directions studied. The results are compared with the APW model of Arko and Koelling, which contains a multiply connected sheet of Fermi surface. The model, or slight variations thereof, is consistent with the available data.
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Research at the University of Nebraska supported by National Science Foundation Grants DMR 72-03208 A01 and DMR 76-17417, and at Argonne National Laboratory by the United States Energy Research and Development Administration. The work was performed at the Francis Bitter National Magnet Laboratory, which is supported at MIT by the National Science Foundation.
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Gerber, J.A., Sellmyer, D.J. & Arko, A.J. Magnetoresistance of UIr3 and UGe3 to 220 kG. J Low Temp Phys 29, 345–351 (1977). https://doi.org/10.1007/BF00655099
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DOI: https://doi.org/10.1007/BF00655099