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Anomalous magnetic torque in the heavy-fermion superconductor UBe13

✍ Scribed by G.M. Schmiedeshoff; Z. Fisk; J.L. Smith

Publisher
Elsevier Science
Year
1994
Tongue
English
Weight
120 KB
Volume
194-196
Category
Article
ISSN
0921-4526

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✦ Synopsis

Measurements of the magnetic torque acting upon a single crystal of the heavy-fermion superconductor UBel3 have been made at temperatures from 0.5 K to 30.0 K and in magnetic fields to 23 T using a capacitive magnetometer. We find that a large, anomalous contribution to the magnetic torque appears in at low temperatures and in high fields. The anomalous torque coexists with the superconducting state at low temperature. We propose that the anomalous torque reflects the existence of a field-induced magnetic phase transition.

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Non-Fermi liquid normal state of the hea
Non-Fermi liquid normal state of the heavy-fermion superconductor UBe13
✍ P. Gegenwart; C. Langhammer; R. Helfrich; N. Oeschler; M. Lang; J.S. Kim; G.R. S πŸ“‚ Article πŸ“… 2004 πŸ› Elsevier Science 🌐 English βš– 492 KB

Non-Fermi liquid (NFL) behavior in the normal state of the heavy-fermion superconductor UBe 13 is studied by means of low-temperature measurements of the specific heat, C, and electrical resistivity, q, on a high-quality single crystal in magnetic fields up to 15.5 T. At B ΒΌ 0, unconventional superc