Magnetic structure of NpPd2Al3: Relevance to the coexistence of superconductivity and magnetism in UPd2Al3
A. Hiess, F. Bourdarot, P. Burlet, E. Ressouche, J.-P. Sanchez, F. Wastin, J. Rebizant, G. H. Lander, E. Suard
DOI 10.1103/PhysRevB.55.1138 · Physical Review B
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Abstract
We report neutron-diffraction experiments to determine the low-temperature magnetic structure of NpPd2Al3, the isostructural Np analog of the heavy-fermion superconductor UPd2Al3. The systems orders initially at about 40 K with an incommensurate magnetic propagation vector q=(,,0.36). Below 25nK the intensity of this phase is reduced and a new commensurate magnetic phase with q=(,,) is observed as the dominant phase. The fact that we observe two magnetic phases in this system may have relevance to understanding the ground state in UPd2Al3.
Source-reported materials — not catalogue approval
| Formula | Reported Tc (K) | Pressure (GPa) | Type |
|---|---|---|---|
| UPd2Al3 Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula. | 2 | Pressure not reported | unknown |
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