SKM 2023 – wissenschaftliches Programm
Bereiche | Tage | Auswahl | Suche | Aktualisierungen | Downloads | Hilfe
MA: Fachverband Magnetismus
MA 39: Weyl Semimetals
MA 39.4: Vortrag
Donnerstag, 30. März 2023, 12:15–12:30, HSZ 403
Magnetic and Electronic Structure of Eu(Cd,Zn)2P2 — •Sarah Krebber1, Kristin Kliemt1, Marvin Kopp1, Charu Garg1, Jens Müller1, Kurt Kummer2, Denis Vyalikh3, and Cornelius Krellner1 — 1Institute of Physics, Goethe-University, Frankfurt (Main), Germany — 2ESRF, Grenoble, France — 3DIPC, Donostia-San Sebastián, Spain
The interplay of topology and magnetism has been of great interest in the last few years. The coexistence of both phenomena can be realized in europium based compounds with the 122 stoichiometry and a trigonal crystal structure (P3m1). Recently, a spin fluctuation induced Weyl semimetal state in the paramagnetic phase of EuCd2As2 [1,2] and its tunability by pressure [3] was discovered. Furthermore, EuCd2P2 has been explored due to its colossal magnetoresistance [4], where the origin of the effect was explained by the formation of ferromagnetic clusters [5].
With the aim of studying the magnetic and electronic properties of EuCd2P2 compound in detail and finding similar effects in EuZn2P2 both systems were studied. Here, we present the successful crystal growth and characterization via magnetization, electrical transport, heat capacity and spectroscopy.
[1] Ma et al., Science Adv. 5, eaaw4718 (2019).
[2] Jo et al., Phys. Rev. B 101, 140402(R) (2020).
[3] Gati et al., Phys. Rev. B 104, 155124 (2021).
[4] Wang et al., Adv.Mater., 33, 2005755 (2021).
[5] Sunko et al., arXiv:2208.05499, (2022).