Neutron-scattering study of the magnetic response in the heavy-fermion superconductor UNi2Al3

Authors
Aso, N Roessli, B Bernhoeft, N Calemczuk, R Sato, NK Endoh, Y Komatsubara, T Hiess, A Lander, GH Kadowaki, H
Citation
N. Aso et al., Neutron-scattering study of the magnetic response in the heavy-fermion superconductor UNi2Al3, PHYS REV B, 61(18), 2000, pp. 11867-11870
Citations number
15
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
PHYSICAL REVIEW B
ISSN journal
10980121 → ACNP
Volume
61
Issue
18
Year of publication
2000
Pages
11867 - 11870
Database
ISI
SICI code
1098-0121(20000501)61:18<11867:NSOTMR>2.0.ZU;2-#
Abstract
High-resolution neutron inelastic scattering has been used to probe the mag netic response in the heavy-fermion superconductor UNi2Al3 Quasielastic sca ttering has been observed both below and above T-c in the vicinity of the i ncommensurate magnetic ordering vector Q(o)=(0.39,0,0.5). Features in the r esponse are similar to those reported recently for the isostructural compou nd UPd2Al3. However, in contrast to the situation in UPd2Al3, no spectral g ap has been observed in the dynamical susceptibility of UNi2Al3, even at th e lowest temperature of 0.2 K.