Reflectivity and Electronic Structures of Layered Ionic Crystals (CnH2n+1NH3)2CuCl4: n=1, 2, 3

Takehisa Yoshinari; Takao Nanba; Shigetaka Shimanuki; Masami Fujisawa; Kiyoshi Aoyagi

doi:10.1143/JPSJ.61.2224

Reflectivity and Electronic Structures of Layered Ionic Crystals (C_nH_2n+1NH₃)₂CuCl₄: n=1, 2, 3

Takehisa Yoshinari, Takao Nanba, Shigetaka Shimanuki, Masami Fujisawa, Kiyoshi Aoyagi

著者情報

キーワード: optical reflection spectra, layered ionic crystal, two-dimensional crystal, alkylammonium copper chloride, Kramers-Kronig analysis, optical constant, synchrotron radiation

ジャーナル認証あり

1992 年 61 巻 7 号 p. 2224-2226

DOI https://doi.org/10.1143/JPSJ.61.2224

詳細

抄録

The reflection spectra of (C_nH_2n+1NH₃)₂CuCl₄ (n=1, 2, 3) were measured in the photon energy region of 2.6–25 eV at room temperature (RT) and liquid nitrogen temperature (LNT) by means of synchrotron radiation. The absorption peak at around 3.3 eV (LNT) has a doublet structure and the splitting energy is 0.08 eV, which is the same magnitude as the spin-orbit splitting of a chlorine atom. The band is assigned as an electronic transition from the chlorine 3p valence band to the copper 4s lowest conduction band.

責任著者(Corresponding author)

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