ISSN:
1573-7357
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract The possible first observation of Josephson plasma emission from a quasiparticle-injected Bi 2 Sr 2 CaCu 2 O y (BSCCO) single crystal is reported. The quasiparticles are injected into the c-axis direction of the crystal. The emitted microwaves in the range 10 - 47GHz are detected by a superheterodyne mixer technique. Three different modes of emissions are observed by biasing the current in the hysteretic curve of the intrinsic junctions. In addition to Josephson self-emission at low bias voltage, we find the two novel emissions due to nonequilibrium effects: incoherent broadband emissions at quasiparticle branches and a sharp coherent emission in the negative resistance region at the gap edge. The latter two emissions are almost identified as Josephson plasma emissions.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1022556103152
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