A. Hariki

collaborators

4 papers

cond-mat.str-el2024

Metal-insulator transition in CaCu $_{3}$ Fe $_{4}$ O $_{12}$

Atsushi Hariki, Tatsuya Yamaguchi, Mathias Winder +1

We study structurally-triggered metal-insulator transition in CaCu $_{3}$ Fe $_{4}$ O $_{12}$ by means of local density approximation (LDA) + $U$ and LDA+dynamical mean-field theory (DMFT).…

cond-mat.str-el2024

Quantifying the U $5 f$ covalence and degree of localization in U intermetallics

Andrea Marino, Denise S. Christovam, Daisuke Takegami +17

A procedure for quantifying the U $5 f$ electrons' covalence and degree of localization in U intermetallic compounds is presented. To this end, bulk sensitive hard and soft x-ray ph…

cond-mat.mtrl-sci2024

Atomic multiplet and charge-transfer screening effects in 1 $s$ and 2 $p$ core-level X-ray photoelectron spectra of early 3 $d$ transition-metal oxides

Tatsuya Yamaguchi, Keisuke Higashi, Anna Regoutz +5

We present a comparative analysis of 1 $s$ and 2 $p$ core-level hard X-ray photoelectron spectroscopy (HAXPES) spectra in metallic VO $_{2}$ and CrO $_{2}$ . Even though the V 1 $s$ and 2 $p$ …

cond-mat.str-el2024

Mechanism of intermetallic charge transfer and bond disproportionation in BiNiO $_{3}$ and PbNiO $_{3}$ revealed by hard x-ray photoemission spectroscopy

Tatsuya Yamaguchi, Mizuki Furo, Yuki Sakai +11

Perovskites with Bi or Pb on the A-site host a number of interesting and yet to be understood phenomena such as negative thermal expansion in BiNiO $_{3}$ . We employ hard x-ray photoe…

Metal-insulator transition in CaCu3​Fe4​O12​

Quantifying the U 5f covalence and degree of localization in U intermetallics

Atomic multiplet and charge-transfer screening effects in 1s and 2p core-level X-ray photoelectron spectra of early 3d transition-metal oxides

Mechanism of intermetallic charge transfer and bond disproportionation in BiNiO3​ and PbNiO3​ revealed by hard x-ray photoemission spectroscopy

Metal-insulator transition in CaCu $_{3}$ Fe $_{4}$ O $_{12}$

Quantifying the U $5 f$ covalence and degree of localization in U intermetallics

Atomic multiplet and charge-transfer screening effects in 1 $s$ and 2 $p$ core-level X-ray photoelectron spectra of early 3 $d$ transition-metal oxides

Mechanism of intermetallic charge transfer and bond disproportionation in BiNiO $_{3}$ and PbNiO $_{3}$ revealed by hard x-ray photoemission spectroscopy