H. Okamura

most citedPseudogap Formation and Heavy Carrier Dynamics in Intermediate Valence YbAl3

51 citations · 55 across the 2 of their papers we have counts for

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cond-mat.str-el2008★ 26 cited

Combining photoemission and optical spectroscopies for reliable valence determination in YbS and Yb metal

M. Matsunami, A. Chainani, M. Taguchi +13

Hard x-ray photoemission and optical spectroscopies have been performed on YbS and Yb metal to determine the precise $f$ -electron occupation. A comparison of the photoemission spec…

cond-mat.str-el2006★ 17 cited

Infrared study of valence transition compound YbInCu4 using cleaved surfaces

H. Okamura, T. Michizawa, T. Nanba +1

Optical reflectivity R(w) of YbInCu4 single crystals has been measured across its first-order valence transition at T_v ~ 42 K, using both polished and cleaved surfaces. R(w) measu…

cond-mat.str-el2005

Indirect and direct energy gaps in the Kondo semiconductor YbB12

H. Okamura, T. Michizawa, T. Nanba +3

Optical conductivity [ $σ (ω)$ ] of the Kondo semiconductor YbB $_{12}$ has been measured over wide ranges of temperature ( $T$ =8 $-$ 690 K) and photon energy ( $ℏ ω \geq$ 1.3 meV). The…

cond-mat.str-el2005

Metal-insulator transition in PrRu $_{4}$ P $_{12}$ and SmRu $_{4}$ P $_{12}$ investigated by optical spectroscopy

M. Matsunami, L. Chen, M. Takimoto +4

Electronic structures of the filled-skutterudite compounds PrRu $_{4}$ P $_{12}$ and SmRu $_{4}$ P $_{12}$ , which undergo a metal-insulator transition (MIT) at $T_{MI}$ = 60 K and 16 K,…

cond-mat.str-el2004★ 4 cited

Carrier-Induced Magnetic Circular Dichloism in the Magnetoresistive Pyrochlore Tl2Mn2O7

H. Okamura, T. Koretsune, S. Kimura +4

Infrared magnetic circular dichloism (MCD), or equivalently magneto-optical Kerr effect, has been measured on the Tl2Mn2O7 pyrochlore, which is well known for exhibiting a large ma…

cond-mat.str-el2002★ 51 cited

Pseudogap Formation and Heavy Carrier Dynamics in Intermediate Valence YbAl3