Search

Your search keyword '"Enoki, Toshiaki"' showing total 21 results
Start Over Author "Enoki, Toshiaki" Journal synthetic metals
21 results on '"Enoki, Toshiaki"'

10. Conduction mechanism and two-dimensional magnetism in incommensurate layered compounds (RES)xMS2(RE=rare earth metal, M=Ta,V)

Author

Suzuki, Kazuya, Kondo, Tetsuo, Enoki, Toshiaki, and Bandow, Shunji

Abstract

We investigated the transport and magnetic properties of (RES)xMS2(RE = rare earth metal, M = Ta, V) with an incommensurate layered structure to elucidate the effect of the incommensurability. Electrical conduction is mostly governed by the carriers on the MS2layers while the RES layer seems to be insulating. The electron localization on the RES layer is caused by the lattice incommensuration. Antiferromagnetic transitions occur at 2.03, 4.1 and 1.7 K for M = Ta and RE = Cc, Gd and Dy, and at 5.45 and 5.0 K for M = V and RE = Ce and Gd, respectively. Quasi-two-dimensional magnetism is ascertained is asc Ising magnet (CeS)xMS2by heat capacity and susceptibility measurements.

Published
1993
Full Text
View/download PDF

11. Phase transitions and magnetic properties of an organic conductor (BEDT-TTF)6Cu2Br6with mixed valence Cu ions

Author

Suzuki, Kazuya, Yamaura, Jun-Ichi, Sugiyasu, Noriyuki, Enoki, Toshiaki, and Saito, Gunzi

Abstract

Physical properties of (BEDT-TTF)6Cu2Br6with the Cu2+/Cu+mixed valence state were investigated by means of static susceptibility, magnetization, ESR, heat capacity and electrical resistivity measurements. A long range antiferromagnetic order was found at 7.5 K and was ascertained by the evidence of the spin-flop transition under 6.5 kOe. Semiconducting electrical conduction with a phase transition at 59 K is changed to metallic one with a 100 K metal-semiconductor transition by the application of 5 kbar pressure. The transition is considered to be correlated to the Jahn-Teller deformation of the Br ligands around Cu2+ion, which enhances the exchange interaction between localized Cu ions and BEDT-TTF cation radicals.

Published
1993
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results