TY - JOUR
T1 - Measurement of a Superconducting Energy Gap in a Homogeneously Amorphous Insulator
AU - Sherman, Dana
AU - Kopnov, Gregory
AU - Shahar, Dan
AU - Frydman, A.
N1 - US Israel binational fund [2008299]We are grateful for the useful discussions with D.B. Gutman, B. Sacepe, E. Shimshoni, and N. Trivedi. This research was supported by the US Israel binational fund (Grant No. 2008299)
PY - 2012/4/27
Y1 - 2012/4/27
N2 - We present tunneling spectroscopy measurements that directly reveal the existence of a superconducting gap in the insulating state of homogenously disordered amorphous indium oxide films. Two films on both sides of the disorder induced superconductor to insulator transition show the same energy gap scale. This energy gap persists up to relatively high magnetic fields and is observed across the magnetoresistance peak typical of disordered superconductors. The results provide useful information for understanding the nature of the insulating state in the disorder induced superconductor to insulator transition.
AB - We present tunneling spectroscopy measurements that directly reveal the existence of a superconducting gap in the insulating state of homogenously disordered amorphous indium oxide films. Two films on both sides of the disorder induced superconductor to insulator transition show the same energy gap scale. This energy gap persists up to relatively high magnetic fields and is observed across the magnetoresistance peak typical of disordered superconductors. The results provide useful information for understanding the nature of the insulating state in the disorder induced superconductor to insulator transition.
UR - http://www.scopus.com/inward/record.url?scp=84860347152&partnerID=8YFLogxK
U2 - https://doi.org/10.1103/PhysRevLett.108.177006
DO - https://doi.org/10.1103/PhysRevLett.108.177006
M3 - مقالة
C2 - 22680898
SN - 0031-9007
VL - 108
SP - 177006
JO - Physical review letters
JF - Physical review letters
IS - 17
M1 - 177006
ER -