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Magnetic-to-nonmagnetic transition in the pseudobinary system U(Ga1-xSnx)3

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Citation

Kaczorowski, D., Troć, R., Badurski, D., Böhm, A., Shlyk, L., & Steglich, F. (1993). Magnetic-to-nonmagnetic transition in the pseudobinary system U(Ga1-xSnx)3. Physical Review B, 48(22), 16425-16431. doi:10.1103/PhysRevB.48.16425.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-DD42-7
Abstract
The temperature dependences of both the electrical resistivity and magnetic susceptibility were measured for the pseudobinary alloy U(Ga1-xSnx)3. Moreover, the temperature variation of the specific heat was determined for UGa3. The results show a clear evolution in magnetic behavior of the system studied from a weakly temperature-dependent paramagnetism with a long-range antiferromagnetic ordering at 67 K in UGa3 to a strongly temperature-dependent paramagnetism, but without any magnetic order, in USn3. The properties of UGa3 are discussed in terms of itinerant 5f-electron magnetism. In contrast, some arguments are given for local 5f-electrons in USn3, which behaves as a nonmagnetic ''Kondo-lattice'' system with T(K) congruent-to 60 K.