| Autor: |
Nowack, A., Naidyuk, Yu. G., Chubov, P. N., Yanson, I. K., Menovsky, A. |
| Zdroj: |
Zeitschrift für Physik B Condensed Matter; October 1992, Vol. 88 Issue: 3 p295-301, 7p |
| Abstrakt: |
We have performed a series of point-contact experiments, i.e. measurements of the voltage-dependent differential resistance, on single crystals of the heavy-fermion metal URu2Si2, which is both antiferromagnetic and superconducting, in the temperature range between 0.8 and 20 K. Our most important results are strong anomalies due to the antiferromagnetism belowTN=17 K. These anomalies appear to be composed of parts fitting into a selfheating model and other, possibly spectroscopic parts. A unique, i.e. either thermal or ballistic model thus seems to be inadequate for the description of these point-contacts. In the characteristics of high-ohmic contacts we find zero-bias maxima of a width comparable to the width of a charge- or spin-density wave gap found in specific heat measurements. For the superconducting state belowTc=1.3 K, our measurements indicate a zone of strongly suppressed superconductivity near the surface. |
| Databáze: |
Supplemental Index |
| Externí odkaz: |
|
Full text from SpringerLink