Anisotropy and two length scales in the magnetic critical scattering in the heavy fermion superconductor Upd(2)Al(3)
In this paper neutron critical scattering experiments have been performed on the heavy-fermion superconductor UPd(2)Al(3) above the Néel temperature in order to characterize the short-ranged correlations associated with the magnetic ordering. The magnetic correlation length along the hexagonal c axis is longer than that in the basal plane, suggesting that the aniferromagnetic interaction along the c axis is stronger than the ferromagnetic one in the basal plane. This antiferromagnetic correlation is discussed in connection with the pairing mechanism of the superconductivity. The magnetic fluctuations have been shown to exhibit the two-length scales reminiscent of features observed in Tb and Ho.
Bibliographic Reference: Article: Physical Review B, Condensed Matter, Vol. 53 (1996) No. 21, pp. 14043-14046
Record Number: 199611071 / Last updated on: 1996-09-30
Original language: en
Available languages: en