Zero-crossing steps in intrinsic Josephson junctions of Bi2Sr2CaCu2O8+δ
H. L. Johnson, Gerd Hechtfischer, Gabriel Götz +2 more
We have investigated the response to microwave irradiation of small mesas fabricated on single crystals of Bi2Sr2CaCu2O8+δ. We observe zero-crossing steps in the current-voltage characteristic which are consistent with the intrinsic Josephson junctions in the mesa stack phase-locking to the external microwave field.
Journal of Applied Physics•Jul 15, 1997•17 citations