Hoon Koh

X-ray absorption spectroscopy study of diluted magnetic semiconductors: Zn 1 − x M x Se ( M = Mn , Fe, Co) and Zn 1 − x Mn x Y ( Y = Se , Te)

We have investigated

Ultraviolet photoelectron spectroscopy study of colossal magnetoresistive La0.7−xPrxCa0.3MnO3

3d

Geometric and magnetic properties of Co/Pd system

electronic states of doped transition metals in II-VI diluted magnetic semiconductors

Change of magnetic property in ultrathin Fe films grown on Pd(111) induced by morphological change and interdiffusion

{\mathrm{Zn}}_{1\ensuremath{-}x}{M}_{x}\mathrm{Se}(M=\mathrm{Mn},\mathrm{F}\mathrm{e},\mathrm{C}\mathrm{o})

Angle-resolved photoemission spectroscopy study of n-type Bi2Te3

and

Fermi surfaces and band dispersions in 4d compound Sr2RhO4

{\mathrm{Zn}}_{1\ensuremath{-}x}{\mathrm{Mn}}_{x}Y(Y=\mathrm{Se},\mathrm{Te}),

X-ray absorption spectroscopy study of diluted magnetic semiconductors: Zn1-xMxSe (M=Mn, Fe, Co) and

using the transition-metal

Magnetic circular dichroism measurement of Co films on Pd(111) substrate

{L}_{2,3}

Angel - Resolved Photoemission studies of Bi₂Te₃

-edge x-ray absorption spectroscopy (XAS) measurements. In order to explain the XAS spectra, we employed a tetragonal cluster model calculation, which includes not only the full ionic multiplet structure but also configuration interaction (CI). The results show that CI is essential to describe the experimental spectra adequately, indicating the strong hybridization between the transition metal

Morphology and Surface Magnetism of Ultrathin Fe Films on Pd(111)

3d