Pressure effects in point contacts with heavy-fermion CeCu2Ge2
β Scribed by K. Gloos; F. Martin; C. Schank; C. Geibel; F. Steglich
- Book ID
- 103939225
- Publisher
- Elsevier Science
- Year
- 1995
- Tongue
- English
- Weight
- 211 KB
- Volume
- 206-207
- Category
- Article
- ISSN
- 0921-4526
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β¦ Synopsis
Pressure-type point contacts between the antiferromagnetically ordering CeCu2Ge 2 (TN = 4.2 K) and simple metals have been investigated. We found a reduced N6el temperature ( < 3.5 K) at the contact. A number of contacts showed superconducting anomalies (excess current) below 0.7 K and with critical magnetic fields around 2 T. Both, the reduced T N and the appearance of superconducting anomalies result from the high pressure at the contact.
π SIMILAR VOLUMES
The differential microcontact resistance between monocrystalline CeCthGe 2 and simple metals as well as the thermal expansion of CeCthGe 2 has been investigated. We observed spectra with smooth maxima around +/-3mV, indicating the destruction of AF magnetic order in CeCthG % and spectra with additio