2026-06-27T12:39:28Zhttps://docta.ucm.es/rest/oai/request

oai:docta.ucm.es:20.500.14352/1124222024-12-12T00:55:26Zcom_20.500.14352_14col_20.500.14352_15

Pardo Sainz, Miguel Moris, Silvana Piquer, Crsitina Rodríguez Velmazan, Jose Alberto López García, María Luisa Álvarez Serrano, Inmaculada Campo, Javier 2024-12-11T11:45:08Z 2024-12-11T11:45:08Z 2024-08-30 Pardo-Sainz M., Moris S., Piquer C., Rodríguez-Velamazán J.A., López M. L., Álvarez-Serrano I., Galdámez A., and Campo J. Suppression of ferromagnetism and emergence of spin-glass-like behavior in the CuCr2−𝑥Sn𝑥S2Se2 spinels Phys. Rev.B 2024, 110, 064436 doi: 10.1103/PhysRevB.110.064436 0163-1829 https://hdl.handle.net/20.500.14352/112422 https://doi.org/10.1103/PhysRevB.110.064436 https://journals.aps.org/prb/abstract/10.1103/PhysRevB.110.064436 Magnetometry, neutron diffraction experiments, and high-resolution transmission electron microscopy (HRTEM) were performed to study the magnetic behavior of CuCr2−xSnxS2Se2 (0.2 x 1.0) solid solutions and experimentally determine the appropriate magnetic structure for these systems. For all samples, the main phase with normal spinel-type structure (F d3¯m) was refined. For low Sn concentration a minority monoclinic phase appears also corroborated with HRTEM analyses. Together with the results from magnetization experiments, neutron diffraction measurements allowed to establish that for samples with x 0.4 there is a ferromagnetic long-range order at high temperatures labeled with the 3d irrep +4 of F d3m.1`, while for x > 0.4 no magnetic signal is observed, indicating that the ferromagnetic behavior is suppressed and replaced with a spin-glass-like state. eng http://creativecommons.org/licenses/by-nc-nd/4.0/ open access Attribution-NonCommercial-NoDerivatives 4.0 International Suppression of ferromagnetism and emergence of spin-glass-like behavior in the CuCr2−𝑥Sn𝑥S2Se2 spinels journal article