Takumi Kikegawa - Publications, H-index & Citations

Takumi Kikegawa

High Energy Accelerator Research Organization

53H指数

393论文数

9.2K被引数

收录论文 59

发表时间

Pressure-temperature stable conditions of the hydride-ion conductive phase in BaH2 and SrH2 氢化物离子导电相在BaH2和SrH2中的压力-温度稳定条件

Science and Technology of Advanced Materials

IF6.9

2026-07-07

OAAI

Satoshi Nakano; Hiroshi Fujihisa; Hiroshi Yamawaki; Yuki Shibazaki; Takumi Kikegawa; Shin-Ichi Orimo

Crystal Structure of the High-Pressure Phase of Ca(BH4)2 and Further Structural Changes up to 70 GPa 高压相Ca(BH4)2的晶体结构及高达70 GPa的结构变化

Inorganic Chemistry

IF4.7

2026-03-30

OAAI

Satoshi Nakano; Hiroshi Fujihisa; Hiroshi Yamawaki; Yuki Shibazaki; Takumi Kikegawa; Shin-ichi Orimo

Pressure-Induced Dehydration and Reversible Recrystallization of Dihydrogen-Bonded Sodium Borohydride Dihydrate NaBH42H2O

INORGANIC CHEMISTRY

IF4.7

2025-01-15

PREAI

Nakano, Satoshi; Fujihisa, Hiroshi; Yamawaki, Hiroshi; Shibazaki, Yuki; Kikegawa, Takumi; Orimo, Shin-ichi

Phase Diagram Analysis of High-Pressure/High-Temperature Polymorphs of Ammonia Borane

INORGANIC CHEMISTRY

IF4.7

2024-02-05

PREAI

Nakano, Satoshi; Fujihisa, Hiroshi; Yamawaki, Hiroshi; Kikegawa, Takumi

Influence of pressure-induced formation of dihydrogen bonds on lattice parameters, volume, and vibrational modes of ammonia borane

JOURNAL OF CHEMICAL PHYSICS

IF3.1

2022-12-15

PREAI

Nakano, Satoshi; Fujihisa, Hiroshi; Yamawaki, Hiroshi; Kikegawa, Takumi

Observation of Dihydrogen Bonds in High-Pressure Phases of Ammonia Borane by X-ray and Neutron Diffraction Measurements

INORGANIC CHEMISTRY

IF4.7

2021-02-15

PREAI

Nakano, Satoshi; Sano-Furukawa, Asami; Hattori, Takanori; Machida, Shinichi; Komatsu, Kazuki; Fujihisa, Hiroshi; Yamawaki, Hiroshi; Gotoh, Yoshito; Kikegawa, Takumi

Coexistence of two states in optically homogeneous silica glass during the transformation in short-range order

PHYSICAL REVIEW B

IF3.7

2018-10-18

PREAI

Sato, Tomoko; Funamori, Nobumasa; Wakabayashi, Daisuke; Nishida, Keisuke; Kikegawa, Takumi

New antiferromagnetic order with pressure-induced superconductivity in EuFe2As2

PHYSICAL REVIEW B

IF3.7

2018-09-18

PREAI

Ikeda, Shugo; Tsuchiya, Yuu; Zhang, Xiao-Wei; Kishimoto, Shunji; Kikegawa, Takumi; Yoda, Yoshitaka; Nakamura, Hiroki; Machida, Masahiko; Glasbrenner, James K.; Kobayashi, Hisao

Nature of the transformation in liquid iodine at 4 GPa

PHYSICAL REVIEW B

IF3.7

2017-07-17

PREAI

Wakabayashi, Daisuke; Funamori, Nobumasa; Kikegawa, Takumi; Watanabe, Kazuki; Kohara, Shinji; Nitani, Hiroaki; Niwa, Yasuhiro; Takeichi, Yasuo; Abe, Hitoshi; Kimura, Masao

Synthesis, Direct Formation under High Pressure, Structure, and Electronic Properties of LiNbO3-type Oxide PbZnO3

INORGANIC CHEMISTRY

IF4.7

2015-11-17

PREAI

Mori, Daisuke; Tanaka, Kie; Saitoh, Hiroyuki; Kikegawa, Takumi; Inaguma, Yoshiyuki

Dislocation-accommodated grain boundary sliding as the major deformation mechanism of olivine in the Earth's upper mantle

SCIENCE ADVANCES

IF12.5

2015-10-02

OAAI

Ohuchi, Tomohiro; Kawazoe, Takaaki; Higo, Yuji; Funakoshi, Ken-ichi; Suzuki, Akio; Kikegawa, Takumi; Irifune, Tetsuo

Determination of the phase boundary of the omega to beta transition in Zr using in situ high-pressure and high-temperature X-ray diffraction 使用原位高压和高温x射线衍射确定Zr中omega到beta转变的相界

JOURNAL OF SOLID STATE CHEMISTRY

IF3.5

2015-05-01

PREAI

Ono, Shigeaki; Kikegawa, Takumi

Structural Analysis of Some High-Pressure Stable and Metastable Phases in Lithium Borohydride LiBH4

JOURNAL OF PHYSICAL CHEMISTRY C

IF3.2

2015-02-16

PREAI

Nakano, Satoshi; Fujihisa, Hiroshi; Yamawaki, Hiroshi; Kikegawa, Takumi

Postperovskite Phase Transition of ZnGeO3: Comparative Crystal Chemistry of Postperovskite Phase Transition from Germanate Perovskites

INORGANIC CHEMISTRY

IF4.7

2014-10-13

PREAI

Yusa, Hitoshi; Tsuchiya, Taku; Akaogi, Masaki; Kojitani, Hiroshi; Yamazaki, Daisuke; Hirao, Naohisa; Ohishi, Yasuo; Kikegawa, Takumi

Discovery of the Last Remaining Binary Platinum-Group Pernitride RuN2

CHEMISTRY-A EUROPEAN JOURNAL

IF3.7

2014-09-09

PREAI

Niwa, Ken; Suzuki, Kentaro; Muto, Shunsuke; Tatsumi, Kazuyoshi; Soda, Kazuo; Kikegawa, Takumi; Hasegawa, Masashi

Rheology of fine-grained forsterite aggregate at deep upper mantle conditions

JOURNAL OF GEOPHYSICAL RESEARCH-SOLID EARTH

IF4.1

2014-01-27

PREAI

Nishihara, Yu; Ohuchi, Tomohiro; Kawazoe, Takaaki; Spengler, Dirk; Tasaka, Miki; Kikegawa, Takumi; Suzuki, Akio; Ohtani, Eiji

Perovskite-to-Postperovskite Transitions in NaNiF3 and NaCoF3 and Disproportionation of NaCoF3 Postperovskite under High Pressure and High Temperature

INORGANIC CHEMISTRY

IF4.7

2012-06-01

PREAI

Yusa, Hitoshi; Shirako, Yuichi; Akaogi, Masaki; Kojitani, Hiroshi; Hirao, Naohisa; Ohishi, Yasuo; Kikegawa, Takumi

B1-to-B2 Structural Transitions in Rock Salt Intergrowth Structures

INORGANIC CHEMISTRY

IF4.7

2011-10-21

PREAI

Yamamoto, Takafumi; Kobayashi, Yoji; Okada, Taku; Yagi, Takehiko; Kawakami, Takateru; Tassel, Cedric; Kawasaki, Shota; Abe, Naoyuki; Niwa, Ken; Kikegawa, Takumi; Hirao, Naohisa; Takano, Mikio; Kageyama, Hiroshi

Pressure-Induced Structural, Magnetic, and Transport Transitions in the Two-Legged Ladder Sr3Fe2O5

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

IF15.6

2011-03-25

PREAI

Yamamoto, Takafumi; Tassel, Cedric; Kobayashi, Yoji; Kawakami, Takateru; Okada, Taku; Yagi, Takehiko; Yoshida, Hideto; Kamatani, Takanori; Watanabe, Yoshitaka; Kikegawa, Takumi; Takano, Mikio; Yoshimura, Kazuyoshi; Kageyama, Hiroshi

Compression Behaviors of Binary Skutterudite CoP3 in Noble Gases up to 40 GPa at Room Temperature

INORGANIC CHEMISTRY

IF4.7

2011-03-15

PREAI

Niwa, Ken; Nomichi, Daisuke; Hasegawa, Masashi; Okada, Taku; Yagi, Takehiko; Kikegawa, Takumi

研究方向