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Microcontacts of heavy fermion CeCu2Ge2 with simple metals at 0.1K<T<5K

✍ Scribed by K. Gloos; D. Düllmann; M. Weis; P.C. Canfield; G. Sparn; F. Steglich

Publisher: Elsevier Science
Year: 1994
Tongue: English
Weight: 168 KB
Volume: 194-196
Category: Article
ISSN: 0921-4526
DOI: 10.1016/0921-4526(94)91509-1

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✦ Synopsis

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 additional structures that vanish around 0.6K, 1. IK, or 2.6K. The shape of these anomalies and the respective temperatures point to CeCthGe 2 becoming locally superconducting below these temperatures because of the high pressure exerted by the counter electrodes.

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