Magnetic and structural properties of the intermetallic Ce(1−x)LaxCrGe3 series of compounds
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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
magnetizationmeasurements. In this paper, 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 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.
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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. Magnetic and structural properties of the intermetallic Ce(1−x)LaxCrGe3 series of compounds. Physical Review Materials, v. 5, n. 11, p. 114406-1 - 114406-11, 2021. DOI: 10.1103/PhysRevMaterials.5.114406. Disponível em: http://repositorio.ipen.br/handle/123456789/32802. Acesso em: 30 Dec 2025.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.