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To learn more about the U heavy-fermion superconductors Ube(13) and UPd(2)Al(3), a series of experiments on the Np analogues which have identical crystal structures have been performed. In the case of NpBe(13) with T(N)=4.9 K the ordering wavevector q=<1/3 0 0> gives information on where to search for possible magnetic correlations in UBe(13). In NpPd(2)Al(3) with T(N)=38 K we observe initially an incommensurate wavevector, but at 27 K a commensurate wavevector appears in addition. In both cases neutron experiments have been performed on polycrystalline samples and small (about 1 mg) single crystals.

Additional information

Authors: HIESS A ET AL, JRC Karlsruhe (DE);BONNET M ET AL, CEA, CEN Grenoble (FR);SUARD E, Institut Laue Langevin, Grenoble (FR);SMITH J L, Los Alamos National Laboratory, New Mexico (US)
Bibliographic Reference: Paper presented: 1st European Conference on Neutron Scattering, Interlaken (CH), October 8-11, 1996
Availability: Available from (1) as Paper EN 39905 ORA
Record Number: 199611460 / Last updated on: 1997-01-16
Original language: en
Available languages: en
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