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Magnetoresistance and upper critical magnetic field of UBe13 under pressure


We have investigated the effects of pressure on the magnetoresistance and the upper critical magnetic field of the heavy electron compound UBe13. Both the superconducting transition temperature and the upper critical field decrease under hydrostatic pressure. The low temperature magnetoresistance remains large and negative under pressure. The temperature region over which the resistivity has a T2 temperature dependence increases with both magnetic field and with pressure. At a fixed magnetic field, the coefficient of the T2 term in the resistivity decreases strongly with pressure. UBe13 is found to have a pressure independent intrinsic residual resistivity of 18 μΦcm. © 1987.

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