Abstract
We report the synthesis of single crystals of Ce2 SnS5 through a two-stage chemical vapor transport method. The Ce2SnS5 system is a member of the orthorhombic Pbam (No. 55) space group and realizes a distorted trigonal tricapped prism (TTP) crystal field around each cerium site. We characterized the sample through orientation-dependent magnetization and heat capacity measurements to probe the magnetic anisotropy in the system characteristic of XY-like anisotropic Heisenberg model behavior. Ce2 SnS5 furthermore enters a zero-field ordered phase under TN = 2.4 K; powder neutron diffraction measurements reveal incommensurate magnetic order near TN. The system then locks into a commensurate, two-q magnetic structure below approximately 1.2 K. This commensurate structure belongs to the Shubnikov group Pb'a'm' (MSG 55.359) and realizes the propagation vectors q = (1/3, 0, 0) and q = (0, 0, 0).
| Original language | English |
|---|---|
| Article number | 184430 |
| Journal | Physical Review B |
| Volume | 112 |
| Issue number | 18 |
| DOIs | |
| State | Published - Apr 2026 |
Funding
We acknowledge support from S. Calder during the neutron scattering experiment as well as Y. Hao, J.A.M. Paddison, and V.O. Garlea for support with magnetic structure analysis. This work was funded, in part, by the Gordon and Betty Moore Foundation EPiQS Initiative, Grant No. GBMF9070 to J.G.C (instrumentation development) and the Army Research Office, Grant No. W911NF-24-1-0234 (material characterization). A portion of this research used resources at the High Flux Isotope Reactor, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. The beam time was allocated to HB-2A on Proposal No. 32050.1.
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