Electronic Structure of the Quasi Two-Dimensional Mott System BaCo1-xNixS2

Katsuaki Kodama, Shin Ichi Shamoto, Hiroshi Harashina, Jun Takeda, Masatoshi Sato, Kazuhisa Kakurai, Masakazu Nishi

Research output: Contribution to journalArticlepeer-review

35 Citations (Scopus)


By means of neutron powder diffraction on antiferromagnetic samples of BaCo1-xNixS2 the spin structure has been determined. The magnitudes of the ordered moments are ∼ 2.9μB at 10 K for x -0.0 and ∼ 1.7μB at 100 K for x = 0.175. The results are not compatible with the electronic configuration (3d3z2-r2)1+x, which was previously assumed to explain the physical behavior of the system. Instead, the configuration seems to be (3dyz or 3dzx)1(3d3z2-r2)1(3d x2-y2)1 in BaCoS2. Each Ni atom substituted for Co adds one electron to this system. Based on this basic picture of the electronic structure, various physical properties of BaCo1-xNixS2 ever published are discussed.

Original languageEnglish
Pages (from-to)1782-1786
Number of pages5
JournalJournal of the Physical Society of Japan
Issue number6
Publication statusPublished - 1996

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)


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