Pressure effects in point contacts with heavy-fermion CeCu2Ge2

Gloos, K.; Martin, F.; Schank, C.; Geibel, C.; Steglich, F.

doi:10.1016/0921-4526(94)00433-V

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Pressure effects in point contacts with heavy-fermion CeCu₂Ge₂

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Gloos, K., Martin, F., Schank, C., Geibel, C., & Steglich, F. (1995). Pressure effects in point contacts with heavy-fermion CeCu₂Ge₂. Physica B-Condensed Matter, 206-207(1-4), 279-81. doi:10.1016/0921-4526(94)00433-V.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0019-E54A-B

Abstract

Pressure-type point contacts between the antiferromagnetically ordering CeCu 2Ge 2 (T N=4.2 K) and simple metals have been investigated. We found a reduced Neel 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.