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Tetravalency and magnetic phase diagram in the heavy-fermion superconductor UPd2Al3

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Citation

Grauel, A., Böhm, A., Fischer, H., GEIBEL, C., Köhler, R., Modler, R., et al. (1992). Tetravalency and magnetic phase diagram in the heavy-fermion superconductor UPd2Al3. Physical Review B, 46(9), 5818-5821. doi:10.1103/PhysRevB.46.5818.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0019-D779-1
Abstract
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.