2026-06-29T08:03:28Zhttps://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

Suppression of ferromagnetism and emergence of spin-glass-like behavior in the CuCr2−𝑥Sn𝑥S2Se2 spinels Pardo Sainz, Miguel Moris, Silvana Piquer, Crsitina Rodríguez Velmazan, Jose Alberto López García, María Luisa Álvarez Serrano, Inmaculada Campo, Javier 546 Exchange interactions Frustrated Magnetism Chalcogenides spinels Inorganic Compounds Ciencias Química inorgánica (Química) 23 Química 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. Agencia Estatal de Investigación, Ministerio de Ciencia e Innovación Diputacion General de Aragón Ministerio de Ciencia, Inovacion y Universidades Depto. de Química Inorgánica Fac. de Ciencias Químicas TRUE pub 2024-12-11T11:45:08Z 2024-12-11T11:45:08Z 2024-08-30 journal article VoR https://hdl.handle.net/20.500.14352/112422 0163-1829 eng PID2022-138492NB-I00-XM4 MCIN/AEI/10.13039/501100011033 CRG-2712 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 Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/ open access application/pdf American Physical Society