TY - JOUR
T1 - Theory of tunneling spectroscopy in U Pd2 Al3
AU - Parker, David
AU - Thalmeier, Peter
PY - 2007/5/2
Y1 - 2007/5/2
N2 - There is still significant debate about the symmetry of the order parameter in the heavy-fermion superconductor U Pd2 Al3, with proposals for cos (k3), cos (2 k3), sin (k3), and ei sin (k3). Here, we analyze the tunneling spectroscopy of this compound and demonstrate that the experimental results by Jourdan [Nature (London) 398, 47 (1999)] are inconsistent with the last two order parameters, which are expected to show zero-bias conductance peaks. We propose a definitive tunneling experiment to distinguish between the first two order parameters.
AB - There is still significant debate about the symmetry of the order parameter in the heavy-fermion superconductor U Pd2 Al3, with proposals for cos (k3), cos (2 k3), sin (k3), and ei sin (k3). Here, we analyze the tunneling spectroscopy of this compound and demonstrate that the experimental results by Jourdan [Nature (London) 398, 47 (1999)] are inconsistent with the last two order parameters, which are expected to show zero-bias conductance peaks. We propose a definitive tunneling experiment to distinguish between the first two order parameters.
UR - http://www.scopus.com/inward/record.url?scp=34247893804&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.75.184502
DO - 10.1103/PhysRevB.75.184502
M3 - Article
AN - SCOPUS:34247893804
SN - 1098-0121
VL - 75
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 18
M1 - 184502
ER -