TY - JOUR
T1 - Fermi Surface Topology and the Superconducting Gap Function in UPd2Al3: A Neutron Spin-Echo Study
AU - Blackburn, Elizabeth
AU - Hiess, A
AU - Bernhoeft, N
AU - Rheinstadter, MC
AU - Haussler, W
AU - Lander, GH
PY - 2006/8/1
Y1 - 2006/8/1
N2 - We report on a single crystal neutron spin-echo investigation of the low-energy dynamic response in the heavy-fermion superconductor UPd2Al3 in the vicinity of the antiferromagnetic wave vector Q(0)=(0 0 0.5). Well inside the superconducting phase, antiferromagnetic quasielastic scattering, which is present in the normal state, is absent for relaxation times up to 10 ns, equivalent to an energy resolution of approximately 1 microeV. This places strong constraints on possible models for this magnetic superconductor.
AB - We report on a single crystal neutron spin-echo investigation of the low-energy dynamic response in the heavy-fermion superconductor UPd2Al3 in the vicinity of the antiferromagnetic wave vector Q(0)=(0 0 0.5). Well inside the superconducting phase, antiferromagnetic quasielastic scattering, which is present in the normal state, is absent for relaxation times up to 10 ns, equivalent to an energy resolution of approximately 1 microeV. This places strong constraints on possible models for this magnetic superconductor.
U2 - 10.1103/PhysRevLett.97.057002
DO - 10.1103/PhysRevLett.97.057002
M3 - Article
C2 - 17026132
SN - 1079-7114
VL - 97
SP - 057002
JO - Physical Review Letters
JF - Physical Review Letters
IS - 5
ER -