We have investigated the Fermi surface properties in the Prbased heavy-fermion superconductor PrTi2Al20 and its reference compound LaTi2Al20 by means of the de Haas-van Alphen effect experiments and the band-structure calculation. The topology of Fermi surface in PrTi2Al20 is close to that of the reference compound LaTi2Al20, indicating a localized nature of 4f-electrons. Whereas the localized nature of 4f-electrons, we have confirmed a highly enhanced cyclotron effective mass up to 12 m0 (m0 is a rest mass of electron), which is enhanced about 5 times compared to that in LaTi2Al20.
We have synthesized polycrystalline samples of CePtAl2 by arc melting method and examined their magnetic, transport and thermal properties by measuring the magnetization, the electrical resistivity, and the specific heat down to 0.4 K. As a result of these measurements, we found that CePtAl2 is a ferromagnetic Ce-based compound with the Curie-temperature Tc = 2.7 K.
Magnetic, transport, and thermal properties of new orthorhombic compounds Ce4Pt9Al13 and Ce4Pt9Al13 have been investigated by the magnetization, the electrical resistivity, and the specific-heat measurements. Ce4Pt9Al13 is a Kondo-lattice compound and shows a ferromagnetic or ferrimagnetic transition at T
C = 0.88 K. Pr4Pt9Al13 is an antiferromagnetic compound with the transition temperature at T
N = 2.6 K.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.