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Andreev reflection of a beam of ballistic quasiparticle excitations incident of a static B-A phase interface in superfluid {sup 3}He

Journal Article · · Journal of Low Temperature Physics
DOI:https://doi.org/10.1007/BF00754591· OSTI ID:198184
; ;  [1]
  1. Lancaster Univ. (United Kingdom); and others
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 iron the larger equatorial A-phase energy gap.
Sponsoring Organization:
USDOE
OSTI ID:
198184
Report Number(s):
CONF-950676--
Journal Information:
Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 1-2 Vol. 101; ISSN JLTPAC; ISSN 0022-2291
Country of Publication:
United States
Language:
English

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