2024/09/19 by I. S. Eid, Li Song, Eid, I. S. +1
Materials Science · #2D Materials and Applications #FOS: Physical sciences #Heusler alloys: electronic and magnetic properties #Magnetic and transport properties of perovskites and related materials #Materials Science (cond-mat.mtrl-sci)
paper · pdf · doi:10.48550/arxiv.2409.12509
openalex publication_date 2024/09/19 · openalex created_date 2024/10/25 · openalex updated_date 2026/07/28
As one of typical layered structures, antiferromagnetic CuCrP2S6 single crystal has high potential for magnetoelectric devices and spintronic multi-terminal chips due to its unique magnetic anisotropy. However, to tune the anisotropic magnetism is still challenge. Herein, high quality single crystals of CuCrP2(S1-XSeX)6 (where X=0, 0.02, 0.05, 0.1, and 0.2) were grown via chemical vapor transport route, and the effect of selenium substitutions on the magnetic anisotropies in CuCrP2S6 were systematically investigated. The magnetic anisotropic results measured in normal and parallel directions between the crystallographic plane (ab) and the applied magnetic field (H) showed that the Néel temperatures (TN) and temperatures at maximum magnetic susceptibilities (TMax) in H⊥ab and H∥ab decreased with increasing the selenium doping amounts in CuCrP2(S1-XSeX)6 single crystals. Notably, their anisotropic behavior in paramagnetic phase tends to be isotropic with increasing selenium concentrations. Moreover, the transitions of the spin flop, which appear only in case of H⊥ab, was greatly suppressed with increasing the selenium concentrations in CuCrP2(S1-XSeX)6 until disappearing at X=0.1 and 0.2. The spin polarized density functional theory calculations further confirmed that the asymmetry between spin up and spin down states in CuCrP2S6 could be highly modulated via Se substitution, resulting in the tunable anisotropic magnetism of hybridized CuCrP2(S1-XSeX)6. Our findings make these materials to be more interesting in spintronic applications.