TY - JOUR
T1 - Andreev bound state and multiple energy gaps in the noncentrosymmetric superconductor BiPd
AU - Mondal, Mintu
AU - Joshi, Bhanu
AU - Kumar, Sanjeev
AU - Kamlapure, Anand
AU - Ganguli, Somesh Chandra
AU - Thamizhavel, Arumugam
AU - Mandal, Sudhansu S.
AU - Ramakrishnan, Srinivasan
AU - Raychaudhuri, Pratap
PY - 2012/9/18
Y1 - 2012/9/18
N2 - We report directional point contact Andreev reflection (PCAR) measurements on high-quality single crystals of the noncentrosymmetric superconductor BiPd. The PCAR spectra measured on different crystallographic faces of the single crystal clearly show the presence of multiple superconducting energy gaps. For point contacts with low resistance, in addition to the superconducting gap feature, a pronounced zero-bias conductance peak is observed. These observations provide strong evidence for the presence of an unconventional order parameter in this material.
AB - We report directional point contact Andreev reflection (PCAR) measurements on high-quality single crystals of the noncentrosymmetric superconductor BiPd. The PCAR spectra measured on different crystallographic faces of the single crystal clearly show the presence of multiple superconducting energy gaps. For point contacts with low resistance, in addition to the superconducting gap feature, a pronounced zero-bias conductance peak is observed. These observations provide strong evidence for the presence of an unconventional order parameter in this material.
UR - http://www.scopus.com/inward/record.url?scp=84866695746&partnerID=8YFLogxK
U2 - 10.1103/PhysRevB.86.094520
DO - 10.1103/PhysRevB.86.094520
M3 - Article
AN - SCOPUS:84866695746
SN - 1098-0121
VL - 86
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 9
M1 - 094520
ER -