B. I. Min

Electronic structure of Zn1−xCoxO using photoemission and x-ray absorption spectroscopy

Electronic structures of homogeneous bulk samples of Zn0.9Co0.1O which do not exhibit diluted ferromagnetic semiconducting (DMS) behavior have been investigated using photoemission spectroscopy and x-ray absorption spectroscopy. We have found that the Co ions in Zn1−xCoxO are in the divalent Co2+(d7) states under the tetrahedral symmetry. Our finding indicates that the DMS properties will not be produced when Co ions are properly substituted for Zn sites, implying that the DMS properties observed in Zn1−xCoxO thin films are likely to be extrinsic.

Electronic structures of antiperovskite superconductors Mg X Ni 3 ( X = B , C, and N)

We have investigated electronic structures of a newly discovered antiperovskite superconductor

Half-metallic antiferromagnetic double perovskites: La A VRuO 6 ( A = Ca , Sr, and Ba)

{\mathrm{MgCNi}}_{3}

Itinerant ferromagnetism in half-metallic CoS 2

and related compounds

Bulk-sensitive photoemission spectroscopy of A 2 FeMoO 6 double perovskites ( A = Sr , Ba )

{\mathrm{MgBNi}}_{3}

Density functional calculations of electronic structure and magnetic properties of the hydrocarbon K 3 picene superconductor near the metal-insulator transition

and

The valence state of Ce in electron-doped manganites: La0.7Ce0.3MnO3

{\mathrm{MgNNi}}_{3}.

Correlation-assisted phonon softening and the orbital-selective Peierls transition in VO 2

In

Valence states and occupation sites in (Fe,Mn)3O4spinel oxides investigated by soft x-ray absorption spectroscopy and magnetic circular dichroism

{\mathrm{MgCNi}}_{3},

Electronic structure of metallic antiperovskite compound GaCMn

a peak of very narrow and high density of states is located just below the Fermi level, which corresponds to the