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Neutron diffraction experiments have been performed in a field of up to 5 T to investigate the magnetic structure of a single crystal of the heavy fermion material UPd(2)Al(3) in the normal state (T greater than 2 K). There was no evidence for the complex phase transitions and structures proposed on the basis of bulk magnetic measurements. Results are consistent with a domain of the antiferromagnetic domains when a field is applied. The domains align to have their moment perpendicular to the applied field, suggesting that the hexagonal axis <100> is the easy axis. No evidence for incommensurate modulations at any applied field is found. The field necessary to align the domains decreases with increasing temperature.

Additional information

Authors: PAOLASINI L, JRC Karlsruhe (DE);PAIXAO J A, JRC Karlsruhe (DE);LANDER G H, JRC Karlsruhe (DE);BURLET P, CEA, CEN Grenoble (FR);SATO N, Tohoku University, Faculty of Science, Department of Physics, Sendai (JP);KOMATSUBARA T, Tohoku University, Faculty of Science, Department of Physics, Sendai (JP)
Bibliographic Reference: Article: Physical Review B, Vol. 49 (1994) No. 10, pp. 7072-7075
Record Number: 199410751 / Last updated on: 1994-11-28
Original language: en
Available languages: en
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