Journal article
Magnetic excitations in the heavy-fermion superconductor URu2Si2
Abstract
Antiferromagnetic order and fluctuations in the heavy-fermion superconductor URu2Si2 have been studied by magnetic neutron scattering. Below TN=17.5 K, URu2Si2 is a type-I antiferromagnet with an anomalously small ordered moment of (0.04±0.01)μB polarized along the tetragonal c axis. Dispersive resonant excitations exist in the ordered state with a zone-center gap of 0.43 THz. The excitations are polarized along the ordered moment and have a …
Authors
Broholm C; Lin H; Matthews PT; Mason TE; Buyers WJL; Collins MF; Menovsky AA; Mydosh JA; Kjems JK
Journal
Physical Review B, Vol. 43, No. 16, pp. 12809–12822
Publisher
American Physical Society (APS)
Publication Date
June 1, 1991
DOI
10.1103/physrevb.43.12809
ISSN
2469-9950