A. Hariki

activity

20172026

_{2}

d

-wave Pomeranchuk instability

344 citations · 1k across the 27 of their papers we have counts for

collaborators

28 papers

cond-mat.mtrl-sci2026

Charge-Transfer Electronic Structure of NiX $_{2}$ (X = S, Se)

Atsushi Hariki, Takaki Okauchi, Daisuke Takegami +8

We investigate the electronic structures of NiS $_{2}$ and NiSe $_{2}$ using density functional theory combined with dynamical mean-field theory (DFT+DMFT). A realistic electronic struct…

cond-mat.str-el2024★ 9 cited

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★ 8 cited

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-el2023★ 4 cited

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…

cond-mat.str-el2023★ 31 cited

X-ray Magnetic Circular Dichroism in RuO $_{2}$

A. Hariki, Y. Takahashi, J. Kuneš

We present numerical simulation of the X-ray magnetic circular dichroism (XMCD) of the $L_{2, 3}$ and $M_{2, 3}$ edges of Ru in antiferromagnetic RuO $_{2}$ using a combination of densi…

cond-mat.str-el2023★ 2 cited

Hidden covalent insulator and spin excitations in SrRu $_{2}$ O $_{6}$

D. Csontosová, J. Chaloupka, H. Shinaoka +2

The density functional plus dynamical mean-field theory is used to study the spin excitation spectra of SrRu $_{2}$ O $_{6}$ . A good quantitative agreement with experimental spin excitati…

cond-mat.mtrl-sci2023★ 156 cited

X-ray Magnetic Circular Dichroism in Altermagnetic $α$ -MnTe

A. Hariki, A. Dal Din, O. J. Amin +14

Altermagnetism is a recently identified magnetic symmetry class combining characteristics of conventional collinear ferromagnets and antiferromagnets, that were regarded as mutuall…

cond-mat.str-el2022★ 12 cited

Single- and Multimagnon Dynamics in Antiferromagnetic $α$ -Fe $_{2}$ O $_{3}$ Thin Films

Jiemin Li, Yanhong Gu, Yoshihiro Takahashi +8

Understanding the spin dynamics in antiferromagnetic (AFM) thin films is fundamental for designing novel devices based on AFM magnon transport. Here, we study the magnon dynamics i…

cond-mat.str-el2022★ 11 cited

Kondo quasiparticle dynamics observed by resonant inelastic x-ray scattering

M. C. Rahn, K. Kummer, A. Hariki +18

Effective models focused on pertinent low-energy degrees of freedom have substantially contributed to our qualitative understanding of quantum materials. An iconic example, the Kon…

cond-mat.mtrl-sci2022★ 9 cited

Satellites in the Ti~1 $s$ core level spectra of SrTiO $_{3}$ and TiO $_{2}$

Atsushi Hariki, Keisuke Higashi, Tatsuya Yamaguchi +7

Satellites in core level spectra of photoelectron spectroscopy (PES) can provide crucial information on the electronic structure and chemical bonding in materials, particular in tr…

cond-mat.str-el2021★ 21 cited

CaCu $_{3}$ Ru $_{4}$ O $_{12}$ : a high Kondo-temperature transition metal oxide

D. Takegami, C. Y. Kuo, K. Kasebayashi +26

We present a comprehensive study of CaCu $_{3}$ Ru $_{4}$ O $_{12}$ using bulk sensitive hard and soft x-ray spectroscopy combined with local-density approximation (LDA) + dynamical mean-fi…

cond-mat.str-el2021★ 8 cited

Valence skipping, internal doping and site-selective Mott transition in PbCoO $_{3}$ under pressure

Atsushi Hariki, Kyo-Hoon Ahn, Jan Kuneš

We present a computational study of PbCoO $_{3}$ at ambient and elevated pressure. We employ the static and dynamic treatment of local correlation in form of density functional theory…

cond-mat.str-el2021★ 36 cited

Core-Level X-Ray Spectroscopy of Infinite-Layer Nickelate: LDA+DMFT Study

Keisuke Higashi, Mathias Winder, Jan Kuneš +1

Motivated by recent core-level x-ray photoemission spectroscopy (XPS), x-ray absorption spectroscopy (XAS) and resonant inelastic x-ray scattering (RIXS) experiments for the newly-…

cond-mat.str-el2021★ 4 cited

Hard x-ray photoemission study on strain effect in LaNiO $_{3}$ thin films

K. Yamagami, K. Ikeda, A. Hariki +7

The strain effect from a substrate is an important experimental route to control electronic and magnetic properties in transition-metal oxide (TMO) thin films. Using hard x-ray pho…

cond-mat.mtrl-sci2020

Revealing the site selective local electronic structure of Co $_{3}$ O $_{4}$ using $2 p 3 d$ resonant inelastic X-ray scattering

Ru-Pan Wang, Meng-Jie Huang, Atsushi Hariki +9

We investigate mixed-valence oxide Co $_{3}$ O $_{4}$ using Co $2 p 3 d$ resonant inelastic X-ray scattering (RIXS). By setting resonant edges at Co $^{2 +}$ and Co $^{3 +}$ ions, the $dd$ excit…

cond-mat.str-el2020★ 25 cited

X-ray spectroscopy of rare-earth nickelate LuNiO $_{3}$ : LDA+DMFT study

Mathias Winder, Atsushi Hariki, Jan Kuneš

We present a computational study of resonant inelastic x-ray scattering (RIXS) and x-ray absorption in a representative rare-earth nickelate LuNiO $_{3}$ . We study the changes in the…

cond-mat.str-el2019★ 12 cited

Damping of spinful excitons in LaCoO $_{3}$ by thermal fluctuations: Theory and experiment

Atsushi Hariki, Ru-Pan Wang, Andrii Sotnikov +7

We present Co $L_{3}$ -edge resonant inelastic x-ray scattering (RIXS) of bulk LaCoO $_{3}$ across the thermally-induced spin-state crossover around 100~K. Owing to a high energy resolut…

cond-mat.str-el2019★ 57 cited

LDA+DMFT approach to resonant inelastic x-ray scattering in correlated materials

Atsushi Hariki, Mathias Winder, Takayuki Uozumi +1

We present a computational study of $L$ -edge resonant inelastic x-ray scattering (RIXS) in correlated 3 $d$ transition-metal oxides using an $ab$ $ini t i o$ method based on local dens…

cond-mat.str-el2019

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-el2019★ 344 cited

Antiferromagnetism in RuO $_{2}$ as $d$ -wave Pomeranchuk instability

Kyo-Hoon Ahn, Atsushi Hariki, Kwan-Woo Lee +1

We present a computational study of antiferromagnetic transition in RuO $_{2}$ . The rutile structure with the magnetic sublattices coupled by $π /2$ -rotation leads to a spin-polarized…

cond-mat.str-el2019★ 4 cited

Pressure-induced spin-state ordering in Sr $_{2}$ CoO $_{3}$ F

Juan Fernández Afonso, Andrii Sotnikov, Atsushi Hariki +1

We study theoretically low-temperature phases of a recently synthesized compound Sr $_{2}$ CoO $_{3}$ F under pressure. The analysis combining LDA+DMFT and a strong-coupling effective mode…

cond-mat.mtrl-sci2018★ 45 cited

Charge-transfer effect in hard x-ray 1 $s$ and 2 $p$ photoemission spectra: LDA+DMFT and cluster-model analysis

Mahnaz Ghiasi, Atsushi Hariki, Mathias Winder +6

We study $1 s$ and $2 p$ hard x-ray photoemission spectra (XPS) in a series of late transition metal oxides: Fe $_{2}$ O $_{3}$ (3 $d^{5}$ ), FeTiO $_{3}$ (3 $d^{6}$ ), CoO (3 $d^{7}$ ) and NiO (3$d…

cond-mat.str-el2018★ 46 cited

Collective Modes in Excitonic Magnets: Dynamical Mean-Field Study

D. Geffroy, J. Kaufmann, A. Hariki +3

We present a dynamical mean-field study of dynamical susceptibilities in two-band Hubbard model. Varying the model parameters we analyze the two-particle excitations in the normal…

cond-mat.str-el2018★ 37 cited

Continuum Charge Excitations in High-Valence Transition-Metal Oxides Revealed by Resonant Inelastic X-ray Scattering

Atsushi Hariki, Mathias Winder, Jan Kuneš

We present a theoretical investigation of the origin of Raman-like and fluorescencelike (FL) features of resonant inelastic x-ray scattering (RIXS) spectra. Using a combination of…

Charge-Transfer Electronic Structure of NiX2​ (X = S, Se)

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

X-ray Magnetic Circular Dichroism in RuO2​

Hidden covalent insulator and spin excitations in SrRu2​O6​

X-ray Magnetic Circular Dichroism in Altermagnetic α-MnTe

Single- and Multimagnon Dynamics in Antiferromagnetic α-Fe2​O3​ Thin Films

Kondo quasiparticle dynamics observed by resonant inelastic x-ray scattering

Satellites in the Ti~1s core level spectra of SrTiO3​ and TiO2​

CaCu3​Ru4​O12​: a high Kondo-temperature transition metal oxide

Valence skipping, internal doping and site-selective Mott transition in PbCoO3​ under pressure