The superconductive energy gap of UPt{sub 3} investigated by point-contact spectroscopy
Journal Article
·
· Journal of Low Temperature Physics
- Universitaet Karlsruhe (Germany)
Point-contact spectroscopy, via the mechanism of Andreev reflection between a normal metal and a superconductor, can be employed to obtain information about the superconductive energy gap. In the present work, point-contacts between the heavy-fermion superconductor UPt{sub 3} and Pt have been studied down to 36 mK and in magnetic fields up to 6T. Andreev reflection is observed only in the low-field, low-temperature superconducting phase. The unusual temperature and magnetic dependence together with the gap anisotropy give direct experimental evidence that the different superconductive phases in UPt{sub 3} have distinctly different order parameters.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 102560
- Report Number(s):
- CONF-9309321--
- Journal Information:
- Journal of Low Temperature Physics, Journal Name: Journal of Low Temperature Physics Journal Issue: 1-2 Vol. 95; ISSN JLTPAC; ISSN 0022-2291
- Country of Publication:
- United States
- Language:
- English
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