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TT: Fachverband Tiefe Temperaturen
TT 24: Quantum-Critical Phenomena
TT 24.12: Vortrag
Dienstag, 19. März 2024, 12:30–12:45, H 2053
Search for ferromagnetic quantum phase transitions in CePt — •Florian Kübelbäck1, Marc Seifert1, Pau Jorba1, Michael Schulz2, Georg Benka1, Andreas Bauer1,3, and Christian Pfleiderer1,2,3,4 — 1Physik-Department, Technical University of Munich, D-85748 Garching, Germany — 2MLZ, Technical University of Munich, D-85748 Garching, Germany — 3Zentrum für Quantum Engineering (ZQE), Technical University of Munich, D-85748 Garching, Germany — 4Munich Center for Quantum Science and Technology (MCQST), Technical University of Munich, D-85748 Garching, Germany
We report the growth of single crystal of CePt by means of the optical floating-zone method and the investigation of the low-temperature properties of this ferromagnetic compound. We combine x-ray diffraction, magnetization, and ac susceptibility measurements at ambient pressure with neutron depolarization studies on polycrystalline samples in diamond anvil cells at high pressure [1] to study the evolution of the magnetic properties. For lab-based measurements of the magnetization under high pressure, a bespoke coil set was converted for use in a Quantum Design Physical Property Measurement System.
[1] P. Jorba et al., Phys. Status Solidi B 2100623 (2022).
Keywords: Quantum Phase Transition