Magnetic and structural properties of the intermetallic Ce(1-x)LaxCrGe3 series of compounds
| Autor: | Bosch-Santos, B., Cabrera-Pasca, G. A., Correa, E. L., Correa, B. S., Sales, T. N. S., Moon, K-W., Dennis, C. L., Huang, Q., Leao, J. B., Lynn, J. W., Carbonari, A. W. |
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| Rok vydání: | 2021 |
| Předmět: | |
| Zdroj: | Physical Review Materials 5, 114406 (2021) |
| Druh dokumentu: | Working Paper |
| DOI: | 10.1103/PhysRevMaterials.5.114406 |
| Popis: | The Ce(1-x)LaxCrGe3 (x = 0, 0.19, 0.43, 0.58 and 1) intermetallic compound system has been investigated by magnetization measurements and neutron scattering techniques to determine the effect of La-doping on the magnetic ordering and exchange interaction between Cr ions. The structural and magnetic characterization in this series was first verified by X-ray diffraction and bulk magnetization measurements. The samples exhibit the known hexagonal perovskite structure (P63/mmc space group) and have a single magnetic phase according to magnetization measurements. In this work, the ferromagnetic ordering temperature for Cr evolves smoothly from a range of 68 K to 77 K for CeCrGe3 to a range of 91 K to 96 K for LaCrGe3 as La replaces Ce. Magnetization results indicate the formation of domain walls below the transition temperature for all the Ce(1-x)LaxCrGe3 systems investigated. Neutron results indicate ordered magnetic Cr moments aligned along the c axis for the x = 1 LaCrGe3 system, as well as for x = 0.19, 0.43, and 0.58, which contrasts with the x = 0 CeCrGe3 where the moments order in the ab plane. Comment: 12 pages, 12 figures |
| Databáze: | arXiv |
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