ISSN:
1573-7357
Keywords:
67.57.Np
;
67.57.Fg
;
67.57.Hi
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Abstract We have attempted to observe the Andreev reflection of a beam of ballistic quasiparticle excitations as it impinges on a static B-A phase interface. The beam is created, and the Andreev reflected component measured, by the quasiparticle equivalent of a black-body radiator. The A-phase is stabilized at low temperature and pressure by a magnetic field which is generated by a miniature superconducting solenoid, situated next to the radiator orifice and which provides the necessary 0.34 T field in a small, localized region. Preliminary results indicate that we can observe Andreev reflection both from the high-field distorted B-phase energy gap and from the larger equatorial A-phase energy gap.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00754591
Permalink