Berlin 2018 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
TT: Fachverband Tiefe Temperaturen
TT 72: Poster Session: Correlated Electrons
TT 72.1: Poster
Mittwoch, 14. März 2018, 15:00–19:00, Poster B
Fermi Surface determination of CeAl2 via de Haas-van Alphen oscillations — •Michael Petrov, Chris Franz, Schorsch Sauther, Andreas Bauer, Mark Wilde, and Christian Pfleiderer — Physik-Department, Technische Universitaet Muenchen, 85748 Garching, Germany
In this work, we revisit the Fermi surface properties of CeAl2, a prototypical heavy-fermion compound that has attracted interest [1,2] because it promises tractable conditions for investigating the emergence of the heavy electron state in an f-electron system and its evolution across metamagnetic phase transitions [3]. In particular, the aim of the current research is a comprehensive picture of the Fermi surface properties, both, above and below the metamagnetic transitions. Torque magnetometry is used as a measurement technique for the de Haas-van Alphen (dHvA) effect that is complementary to the previously employed modulation technique. First results regarding both dHvA oscillations and the magnetic state via the non-oscillatory torque components are presented. The dHvA orbits are compared to the results of density functional theory calculations.
Reinders et al., JMMM 79, 295 (1989)
Pricopi et al., Physica B: Condensed Matter 294, 276 (2001)
Schefzyk et al., Solid State Communications 54, 525 (1985)