K. Ogasawara

发表

First-principles relativistic calculation for 4f–5d transition energy of Ce3+ in various fluoride hosts

K. Fujimura, Shinta Watanabe, T. Ishii, 2006 .

High resolution X-ray study on anomalous diffraction peak shift in dimerized Langmuir-Blodgett superlattice films

T. Ishiguro, S. Takeuchi, Y. Nogami, 1993 .

First-principles analysis for the multiplet structures of tetrahedrally and octahedrally oxo-coordinated 3d2 and 3d3 transition metals

H. Adachi, T. Ishii, K. Ogasawara, 2002 .

First Principles Calculation of Fe L2;3-edge X-ray Absorption Near Edge Structures of Iron Oxides

I. Tanaka, H. Adachi, H. Ikeno, 2004 .

Relativistic cluster calculation of ligand-field multiplet effects on cation L-2,L-3 x-ray-absorption edges of SrTiO3, NiO, and CaF2

Y. Koyama, I. Tanaka, T. Iwata, 2001 .

Proton Spin Relaxation due to Localization in Weakly Disordered System of BO-C10TCNQ Complex.

K. Ogasawara, T. Goto, G. Saito, 1998 .

Localization effects in nuclear spin relaxation of a charge-transfer complex

K. Ogasawara, T. Goto, H. Tsukada, 1999 .

Semiconductive Nature of Lead-Based Metal-Organic Frameworks with Three-Dimensionally Extended Sulfur Secondary Building Units.

N. Tamai, S. Nishitani, H. Yoshikawa, 2019, Journal of the American Chemical Society.

Color coordination of emerald on CIE color space based on first-principles calculations

K. Ogasawara, Shota Takemura, S. Supriyadi, 2022, Optical Materials: X.

First-Principles calculations of the interconfigurational transition energies of 4f - 4f-15d of Ln3+ ions in LiYF4 and CaF2

Chonggeng Ma, K. Ogasawara, Irna Farikhah, 2021, Optical Materials.

First-Principles Calculations of Charge Transfer Transitions of Eu3+ in Y2O3 and Y2O2S

J. Collins, K. Mishra, K. Ogasawara, 2020 .

Optimization of first-principles calculation conditions for multiplet energies of Fe3 + and Co3 + in α-Al2O3

K. Ogasawara, Judo Fusamoto, 2020, IOP Conference Series: Materials Science and Engineering.

Systematic first-principles calculations of charge transfer transitions of trivalent rare earth ions in CaF2

K. Ogasawara, Shota Takemura, 2019, Journal of Luminescence.

Systematic First-Principles Calculations of Charge Transfer Transitions of Transition Metal Ions (Sc3+, Ti3+, V3+, Cr3+, Mn3+, Fe3+) in α-Al2O3 with Structural Optimization

K. Ogasawara, Shota Takemura, M. Novita, 2019, IOP Conference Series: Materials Science and Engineering.

Photoconductive Coordination Polymer with a Lead-Sulfur Two-Dimensional Coordination Sheet Structure.

D. Kiriya, H. Yoshikawa, D. Tanaka, 2021, Inorganic chemistry.

Mechanism of Luminescence Enhancement in Ca4YO ( BO3 ) 3 : Eu3 + by Gd Substitution under Vacuum Ultraviolet Light Excitation

Hajime Yamamoto, K. Ogasawara, K. Uheda, 2008 .

Prediction on the multiplet energy diagram of α-Al2O3: Mn4+ under pressure

M. T. Anwar, K. Ogasawara, M. Novita, 2021 .

Comparative study of the absorption spectrum of Li2CaSiO4:Cr4+: First-principles fully relativistic and crystal field calculations

M. Brik, K. Ogasawara, 2007 .

Comparative Study of Multiplet Structures of Mn4+ in K2SiF6, K2GeF6, and K2TiF6 Based on First-Principles Configuration–Interaction Calculations

K. Ogasawara, M. Novita, 2012 .

First principles calculations of the L2,3-edge XANES spectra for V2O3

I. Tanaka, H. Ikeno, M. Brik, 2006 .

Fully relativistic analysis of the absorption spectra of Ca3Sc2Ge3O12:Ni2+

M. Brik, K. Ogasawara, 2006 .

First-principles calculations of the V3+ absorption spectra in LiAlO2 and LiGaO2

M. Brik, K. Ogasawara, 2006 .

Microscopic analysis of the crystal field strength and lowest charge transfer energies in the elpasolite crystals Cs 2 NaY X 6 ( X = F , Cl , Br ) doped with Cr 3 +

M. Brik, K. Ogasawara, 2006 .

Fully relativistic calculations of the L2,3-edge XANES spectra for vanadium oxides

I. Tanaka, H. Ikeno, M. Brik, 2006 .

First-principles analysis for the optical absorption spectra of metal ions in solids

H. Adachi, G. Huber, T. Ishii, 2004 .

Theoretical calculation for the multiplet structures of tetrahedrally coordinated Cr4+ in silicate crystals

K. Fujimura, I. Tanaka, H. Adachi, 2001 .

First-principle calculation of peak energies and intensities in optical absorption spectrum of Cr 4+ :Ca 2 GeO 4

I. Tanaka, H. Adachi, T. Ishii, 2000 .

First-principles calculation for multiplet structure of emerald

I. Tanaka, H. Adachi, T. Ishii, 2000 .

Separation of the effects of charge transfer, covalency and electron correlations on the multiplet structure of ruby based on first-principles cluster calculations

I. Tanaka, H. Adachi, T. Ishii, 2000 .

First-principles multielectron calculations of Ni L 2 , 3 NEXAFS and ELNES for Li Ni O 2 and related compounds

Yukinori Koyama, Kazuyoshi Ogasawara, Isao Tanaka, 2005 .

First‐principles calculation of magnetic circular dichroism of transition‐metal L2,3‐edge X‐ray absorption near‐edge structures

K. Ogasawara, A. Chaya, H. Yoshida, 2009 .

Microscopic Analysis of 5d States Splitting and Charge Transfer Energies Dependence on Interionic Distance in Alkaline Earth Fluorides Doped with Light Trivalent Lanthanides

M. Brik, K. Ogasawara, 2007 .

First-principles analysis method for the multiplet structures of rare-earth ions in solids

M. Brik, T. Ishii, K. Ogasawara, 2004 .

Study of multiplet structures of Mn4+ activated in fluoride crystals

K. Ogasawara, T. Honma, B. Hong, 2016 .

Core-hole effects on theoretical electron-energy-loss near-edge structure and near edge x-ray absorption fine structure of MgO

I. Tanaka, T. Mizoguchi, H. Adachi, 2000 .

Analysis of Core-Hole Effect in Cation L2,3-Edge of MgO, α-Al2O3 and SiO2 Based on DV-Xα Cluster Calculations

I. Tanaka, H. Adachi, K. Ogasawara, 1998 .

Highly regioselective allylation of imines with allylic barium reagents

K. Ogasawara, A. Yanagisawa, Hisashi Yamamoto, 1996 .

Syntheses of velbanamine and catharanthine.

K. Ogasawara, G. Büchi, R. L. Rosati, 1970, Journal of the American Chemical Society.

Synthesis, Crystal Structure, and Relativistic DV-Xα Calculation of a μ-Oxido-μ-molybdato(VI)-bridged Dinuclear Oxidomolybdenum(V) Complex with 2-(3-Aminopropyl)aminoethanethiol

K. Ogasawara, M. Mikuriya, Shota Takemura, 2018 .

Synthesis, Crystal Structure, and DFT Calculation of a Dioxido-bridged Dinuclear Oxidomolybdenum(V) Complex with 2-(2-Aminoethyl)aminoethanethiol

K. Ogasawara, M. Mikuriya, D. Yoshioka, 2017 .

Vacuum referred binding energy of 3d transition metal ions for persistent and photostimulated luminescence phosphors of cerium-doped garnets

P. Dorenbos, J. Ueda, S. Tanabe, 2017 .

Prediction of 4f2−4f15d1 transition energy of Pr3+ in fluorides based on first-principles calculations and machine learning

K. Ogasawara, Shota Takemura, Hayato Obata, 2020, IOP Conference Series: Materials Science and Engineering.

Comparative Study on Optical Properties of YPO4: Mn, Zr Phosphor by Experiment and Calculation

M. Kitaura, Shinta Watanabe, K. Ogasawara, 2015 .

Prediction of emission energy of Cr3+ in oxides based on first-principles calculations and machine learning

K. Ogasawara, Tsubasa Hori, T. Hori, 2020, IOP Conference Series: Materials Science and Engineering.

Crystal field analysis of energy level structure of LaF3:Eu3+

I. Tanaka, M. Brik, Shinta Watanabe, 2006 .

Theoretical and Experimental Consideration of Valence Band X-ray Photoelectron Spectroscopy Spectra of Cr-Deficient MgCr2-xO4

H. Moriwake, Shinta Watanabe, K. Ogasawara, 2007 .

Study on Multiplet Energies of V2+, Cr3+, and Mn4+ in MgO Host Crystal Based on First-Principles Calculations with Consideration of Lattice Relaxation

K. Ogasawara, M. Novita, 2014 .

Comparative Study of Absorption Spectra of V2+, Cr3+, and Mn4+ in α-Al2O3 Based on First-Principles Configuration–Interaction Calculations

K. Ogasawara, M. Novita, 2012 .

Chapter 231 First-principles calculations of 4fn→4fn−15d transition spectra

M. Brik, Shinta Watanabe, K. Ogasawara, 2007 .

Ab-initio study on the absorption spectrum of color change sapphire based on first-principles calculations with considering lattice relaxation-effect

K. Ogasawara, M. Novita, Hikari Nagoshi, 2018 .

Molecular orbital calculations of Eu-doped SrAl2O4 clusters

H. Yamada, Chao‐Nan Xu, Shinta Watanabe, 2015 .

Luminescence properties of YAl3(BO3)4:Gd3+ phosphors substituted with Sc3+ ions

K. Ogasawara, H. Yoshida, Ryo Yoshimatsu, 2007 .

Optical Transitions near the Fundamental Absorption Edge and Electronic Structures of YAl3(BO3)4:Gd3+

Shinta Watanabe, K. Ogasawara, H. Yoshida, 2006 .

First-principles and experimental analysis of f n − f n − 1 d 1 absorption spectra and multiplet energy levels of Pr 3 + , Nd 3 + , and U 3 + in LiYF 4

M. Yoshino, T. Nagasaki, Shinta Watanabe, 2010 .

First-principles calculations of 4f–5d optical absorption spectra in BaMgAl10O17:Eu

Shinta Watanabe, K. Ogasawara, H. Yoshida, 2007 .

Chromaticity coordinates of ruby based on first-principles calculation

K. Ogasawara, Shota Takemura, Irna Farikhah, 2021, Optical Materials.

Study on the molecular orbital energies of ruby under pressure

K. Ogasawara, N. Cholifah, M. Novita, 2020 .

Optical properties of Co3+ doped in α-Al2O3 with Considering Lattice Relaxation Effect

K. Ogasawara, N. Cholifah, M. Novita, 2020, IOP Conference Series: Materials Science and Engineering.

A non-empirical lattice-relaxation estimation of TM3+ doped α-Al2O3

K. Ogasawara, N. Cholifah, M. Novita, 2020, IOP Conference Series: Materials Science and Engineering.

Effect of trivalent manganese substitution in α-Al2O3 crystal on the absorption spectra based on first-principles calculations

K. Ogasawara, N. Cholifah, M. Novita, 2019, Journal of Physics: Conference Series.

Comparative Study on R-line and U-band Energies of Ruby Estimated from One-Electron and Many-Electron First-Principles Approaches

K. Ogasawara, M. Novita, S. Wibowo, 2019, Journal of Physics: Conference Series.

A First-Principles Investigation of the Crystal-Field and Racah Parameters of Transition Metal Ions: Cr3+ in Alumina

J. Collins, K. Mishra, K. Ogasawara, 2019, ECS Journal of Solid State Science and Technology.

Optical spectra of trivalent lanthanides in LiYF4 crystal (vol 178, pg 412, 2005)

I. Tanaka, H. Ikeno, M. Brik, 2005 .

Study on the Optical Luminescence Properties of Li2TiO3: Mn4+ and Cr3+

K. Ogasawara, M. Novita, D. Marlina, 2021 .

The DV-Xα Molecular Orbital Calculation Method and Recent Development

K. Ogasawara, Y. Kowada, 2015 .

Electronic states of Nd3+ ions in phosphate glasses calculated by the discrete-variational multi-electron method

K. Ogasawara, Y. Kowada, 2010 .

Fluorescence Spectra of Pr3+ Ions in Phosphate Materials Calculated by the DVME Method

K. Ogasawara, Y. Kowada, S. Noma, 2009 .

Experimental and First-Principles Analysis of 4f–5d Absorption Spectrum for Ce3+ in LiYF4 Considering Lattice Relaxation

Shinta Watanabe, K. Ogasawara, 2008 .

Current Situation and Future Development of Discrete Variational Multielectron Method

Shinta Watanabe, K. Ogasawara, 2008 .

Relativistic Calculations of Complete 4 fn Energy Level Schemes of Free Trivalent Rare-Earth Ions

M. Brik, Shinta Watanabe, T. Ishii, 2005 .

Calculations of Complete 4fn and 4fn-1 5d1 Energy Level Schemes of Free Trivalent Rare-Earth Ions

I. Tanaka, M. Brik, Shinta Watanabe, 2004 .

A New Metallic Langmuir-Blodgett Film Formed with BO$_{\bf 2}$-(MeO)$_{\bf 2}$TCNQ, where BO is Bisethylenedioxytetrathiafulvalene and (MeO)2TCNQ is Dimethoxytetracyanoquinodimethane

T. Ishiguro, K. Ogasawara, G. Saito, 1996 .

Machine-Learning-Assisted Selective Synthesis of Semiconductive Silver Thiolate Coordination Polymer with Segregated Paths for Holes and Electrons.

H. Yoshikawa, D. Tanaka, K. Ogasawara, 2021, Angewandte Chemie.

CLUSTER CALCULATION OF OXYGEN K-EDGE ELECTRON-ENERGY-LOSS NEAR-EDGE STRUCTURE OF NIO

I. Tanaka, H. Adachi, K. Ogasawara, 1998 .

Chemical effects on F KLL Auger spectra in fluorides

L. Kövér, K. Ogasawara, J. Tóth, 2001 .

Percolation conduction in BO-C10TCNQ conductive Langmuir-Blodgett films

T. Ishiguro, Y. Nogami, K. Ogasawara, 1997 .

Structural study of the highly conductive tridecylmethylammonium-Au(dmit)2 Langmuir-Blodgett films

T. Ishiguro, Takayoshi Nakamura, Y. Nogami, 1995 .

A new highly conductive BO-(MeO)2 TCNQ Langmuir-Blodgett film

T. Ishiguro, Y. Nogami, K. Ogasawara, 1997 .

Total cluster energy calculation of lithium ion conductors by the DV‐Xα method

K. Ogasawara, Y. Kowada, W. Nishitani, 2009 .

Calculation of multiplet structures of Cr3+ and V3+ in alpha-Al2O3 based on a hybrid method of density-functional theory and the configuration interaction

I. Tanaka, H. Adachi, T. Ishii, 2000 .

Enhance electron-correlation effect on the ruby multiplet energy dependence on pressure

K. Ogasawara, N. Cholifah, M. Novita, 2020 .

Multiplet Energy Level Diagrams for Cr3+ and Mn4+ in Oxides with Oh Site Symmetry Based on First-Principles Calculations

K. Ogasawara, Hikari Nagoshi, Fatimah Alluqmani, 2016 .

Lattice Relaxation Effects on the Multiplet Energies of Ruby Under Pressure using One-Electron Calculations

K. Ogasawara, N. Cholifah, M. Novita, 2020, IOP Conference Series: Materials Science and Engineering.

First-principles analysis method for the f–d transitions of heavy metal ions

K. Fujimura, M. Brik, T. Ishii, 2004 .

First-principle calculation for absorption spectrum of Cr4+:Ca2MgSi2O7 (åkermanite)

I. Tanaka, Takugo Ishii, K. Fujimura, 2001, Laser Optics.

Prediction of 4f-4f5d transition energy of Eu in oxides based on first-principles calculations and machine learning

K. Ogasawara, Shota Takemura, H. Hori, 2020 .

First-principles calculation of ground and excited-state absorption spectra of ruby and alexandrite considering lattice relaxation

Shinta Watanabe, T. Ishii, K. Ogasawara, 2009 .

First principles calculation of ELNES by LCAO methods

I. Tanaka, T. Mizoguchi, W. Ching, 2002 .

Recent applications of discrete variational multi-electron method

K. Ogasawara, 2020, IOP Conference Series: Materials Science and Engineering.

Relativistic many-electron calculations of Cr3+L2,3-edge x ray absorption near-edge structures for Cr3+:α-Al2O3 and α-Cr2O3 and magnetic circular dichroism of Cr3+L2,3-edge x ray absorption near-edge structures for Cr3+:α-Al2O3

T. Nagasaki, Shinta Watanabe, K. Ogasawara, 2011 .

Theoretical calculation of excited-state absorption in Cr4+:Mg2SiO4 (forsterite)

H. Adachi, T. Ishii, K. Ogasawara, 2001 .

Redox-Active Tin Metal-Organic Framework with a Thiolate-Based Ligand.

H. Yoshikawa, D. Tanaka, K. Ogasawara, 2021, Inorganic chemistry.

Analysis of Covalent Effects on the Multiplet Structure of Ruby Based on First-Principles Cluster Calculations

I. Tanaka, H. Adachi, T. Ishii, 1998 .

Experimental and Theoretical Investigations for Excitation Properties of Ba1-x Eu x MgAl10O17

Hajime Yamamoto, Shinta Watanabe, K. Ogasawara, 2007 .

P‐202L: Late‐News Poster: Luminescence and Excitation Properties of Host Lattice and Eu2+ Ions in BaMgAl10O17:Eu2+ Phosphor

Hajime Yamamoto, Shinta Watanabe, K. Ogasawara, 2007 .

Erratum to ‘‘Optical spectra of trivalent lanthanides in LiYF4 crystal’’ [J. Solid State Chem. 178 (2005) 412–418]

I. Tanaka, H. Ikeno, M. Brik, 2005 .

First-principles Calculation of Transition-metal L2,3-edge Electron-energy-loss Near-edge structures Based on Direct Diagonalization of the Many-electron Hamiltonian

I. Tanaka, H. Adachi, K. Ogasawara, 2002 .

Theoretical calculation for the multiplet structure of the tetrahedrally coordinated Cr4+ in Y3Al5O12

I. Tanaka, H. Adachi, T. Ishii, 2001 .