SKM 2021 – wissenschaftliches Programm
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TT: Fachverband Tiefe Temperaturen
TT 9: Poster Session: Correlated Electrons
TT 9.6: Poster
Dienstag, 28. September 2021, 13:30–16:00, P
Low-Temperature Properties of the Non-Centrosymmetric Heavy-fermion Compound CeAl2 — •Christian Oberleitner, Alexander Regnat, Christian Franz, Jan Spallek, Georg Benka, Michael Petrov, Marc Andreas Wilde, Andreas Bauer, and Christian Pfleiderer — Physik-Department, Technische Universitaet Muenchen, 85748 Garching, Germany
We report a comprehensive study of the non-centrosymmetric heavy-fermion compound CeAl2 with TN = 3.8 K. The metallurgical characterization by Laue x-ray scattering and powder x-ray diffraction shows the excellent crystalline quality, which is confirmed by very high residual-resistivity ratios (RRR). Magnetization, specific heat, torque magnetometry, resistivity, and Hall-effect measurements down to 50 mK and up to 18 T were carried out. The low-temperature measurements in the antiferromagnetic regime show complex magnetic behavior. The Hall-effect cannot be explained by a superposition of anomalous and normal Hall-effect.