Antiferromagnetism weakening with Y-substitution in the TbRhIn5 intermetallic system
Loading...
Date
2017-08-31
Journal Title
Journal ISSN
Volume Title
Publisher
arXivLabs
Abstract
We report measurements of the temperature dependence specific heat, magnetic susceptibility in single crystals of the series of intermetallic compounds Tb1−xYxRhIn5 (nominal concentrations x=0.15,0.30,0.40,0.50 and 0.70). A mean field approximation to simulate the macroscopic properties along the series has been used. Neutron diffraction data in powdered sample of nominal concentration Tb0.6Y0.4RhIn5 reveal AFM propagation vector k=[12 0 12] with the magnetic moments oriented close to the tetragonal \textit{c} axis. We discuss the role of combined effects of crystalline electric field (CEF) perturbations and dilution in the magnetic properties evolution with Y content. In particular, we suggest that changes in the Tb-In first neighbors distances, i.e. the TbIn3 cuboctahedra distortion, are responsible for changes in the Tb crystalline potential and the possible reorientation of Tb magnetic moments for x>0.4. This reflects non negligible variations of the Bmn crystal field parameters and the energy levels splitting with \textit{x}. CC BY: Creative Commons Attribution
Description
Keywords
Electrons, Temperature dependence, Specific heat, Magnetic susceptibility, Monocrystals, Intermetallic compounds, Terbium alloys, Rhodium alloys, Indium alloys, Neutron diffraction, Magnetic moments
Citation
Amaral, R. P., Lora-Serrano, R., Garcia, D. J., Betancourth, D., Cadogan, J. M., Muñoz-Pérez, S., Cobas-Acosta, R., Avdeev, M., Bittar, E. M., Duque, J. G. S., & Pagliuso, P. G. (2017). Antiferromagnetism weakening with Y-substitution in the TbRhIn5 intermetallic system. arXiv Condensed Matter, arXiv:1709.00063.
doi:10.48550/arXiv.1709.00063