Manifestation of a clear gap structure from point-contact and tunneling spectroscopy of YBa2Cu3O7-x and YbBa2Cu3O7-x single crystals.
Ponomarev
YG
Brandt
NB
Khi
CS
Tchesnokov
SV
Tsokur
EB
Yarygin
AV
Yusupov
KT
Aminov
BA
Hein
MA
Müller
G
Piel
H
Wehler
D
Kresin
VZ
Rosner
K
Winzer
K
Wolf
T