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Schlagwörter:
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Zusammenfassung:
Measurements of the dc susceptibility-chi(T), dc magnetization,
magnetoresistivity, and magnetostriction are utilized to delineate the
magnetic B-T phase diagram of the antiferromagnetically ordered (T(N) =
14 K) heavy-fermion superconductor (T(c) = 2 K) UPd2Al3. The
single-crystal data reveal three antiferromagnetic phases for B
perpendicular-to c, but only one for B parallel-to c. The
anisotropic-chi(T) in the paramagnetic state suggests a tetravalent
configuration of uranium.