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TT: Fachverband Tiefe Temperaturen

TT 23: Correlated Electrons – Poster I

TT 23.15: Poster

Montag, 9. März 2026, 18:00–20:00, P1

Magnetic and Electronic Transport Behavior in Cr-Based Quantum Materials — •Shitao Qu, Ran Tao, Mengmeng Long, Mads Fonager Hansen, and F. Malte Grosche — Cavendish Laboratory, University of Cambridge, Cambridge, United Kingdom

Unconventional superconductivity among transition metal compounds is seen in Cu-, Fe- and most recently Ni-based materials. What about other transition metal systems? There are a surprising number of chromium-based superconductors, often in conjunction with applied pressure: CrAs, A₂Cr₃As₃ (with A an alkaline metal), ACr₃As₃, and CsCr₃Sb₅. Moreover, CrSb is one of the best-studied metallic altermagnets. These findings motivate a wider study of Cr-based correlated electron materials.

We initially investigate (i) CrP – an isostructural and isoelectronic relative to CrAs, (ii) CrSe – an altermagnet candidate, and (iii) the Kagome lattice systems CsCr₃Sb₅ and CsCr₆Sb₆.

Single crystals are prepared via flux and vapour-transport techniques and characterised in standard X-ray, magnetometry and transport measurements. They enable studies of the electronic structure and magnetic/superconducting phase diagram, forming a promising basis for exploring correlated-electron behavior in Cr-based quantum systems more widely.

Keywords: Cr-based intermetallics; Single-crystal growth; Magnetisation and transport; Functional magnetic materials; Kagome and altermagnetic systems