J-GLOBAL         Last updated: Dec 5, 2019 at 20:13
The University of Tokyo
The Institute for Solid State Physics

Research Areas


Awards & Honors

Mar 2018
Devil's staircase of odd-number charge order modulations in divalent beta-vanadium bronzes under pressure,, Physical Review B Editor's suggestion,, American Physical Society,
Winner: YAMAUCHI Touru, Ueda Hiroaki, Ohwada Kenji, NAKAO Hironori, Ueda Yutaka
ベータバナジウムブロンズの高圧物性研究, ISSP Young Scientist Medal, Institute for Solid State Physics, University of Tokyo
Winner: Touru Yamauchi

Published Papers

Touru Yamauchi, Taku Shimazu, Daisuke Nishio-Hamane, and Hiroya Sakurai
Physical Review Letters   123 156601   Oct 2019   [Refereed]
Electric resistivity, magnetic susceptibility, and x-ray diffraction measurements under high pressure are performed in both alpha-Sr2VO4 and alpha-Sr2CrO4, which are carefully prepared with regard to their stoichiometry. These measurements reveal ...
Takuya Aoyama, Kazutoshi Emi, Chihiro Tabata, Yusuke Nambu, Hironori Nakao, Touru Yamauchi, and Kenya Ohgushi
Journal of the Physical Society of Japan   88 093706   Aug 2019   [Refereed]
Electronic properties of singlecrystalline La3Ir3O11, which hosts strongly spin–orbit entangled 5d electrons on the geometrically frustrated KSbO3-type structure, have been investigated. The magnitude of spin–orbit coupling in the 5d band was esti...
Touru Yamauchi, Hiroaki Ueda, Kenji Ohwada, Hironori Nakao, Yutaka Ueda
Physical Review B   97    Mar 2018   [Refereed]
? 2018 American Physical Society. A common characteristic of quasi-one-dimensional (q1D) conductors beta-A0.33V2O5(A = Li, Na, and Ag) is that the charge ordering (CO), the ground state (GS) at ambient pressure, and the superconducting (SC) phases...
Kengo Oka, Touru Yamauchi, Sudipta Kanungo, Taku Shimazu, Katsuyohi Oh-ishi, Yoshiya Uwatoko, Masaki Azuma, Tanusri Saha-Dasgupta
Journal of the Physical Society of Japan   87    Jan 2018   [Refereed]
?2018 The Physical Society of Japan. The physical properties of the high-pressure (HP) cubic phase of PbVO3were investigated on experimental and theoretical bases. Above 3 GPa, PbVO3exhibits a structural transition from the tetragonal phase to the...
Ichihiro Yamauchi, Ichihiro Yamauchi, Masayuki Itoh, Touru Yamauchi, Jun Ichi Yamaura, Yutaka Ueda
Physical Review B   96    Nov 2017   [Refereed]
? 2017 American Physical Society. V51 NMR measurements have been conducted on a single crystal of the quasi-one-dimensional conductor beta-Li0.33V2O5 which undergoes a metal-insulator (MI) transition at TMI?170 K. In the metallic phase, we obtain ...

Conference Activities & Talks

Pressure-induced electronic phase transitions in strongly correlated electron systems
上田 寛, 山内 徹
豊田研究報告 = Reports of Toyota Physical and Chemical Research Institute   May 2016   
High-pressure properties of single-crystal Sr2VO4 with K2NiF4 structure
Shimazu Taku, Yamauchi Touru, Sakurai Hiroya, Ohama Tetsuo, Hiroi Zenji, Uwatoko Yoshiya
Meeting Abstracts of the Physical Society of Japan   2016   
<p>K_2_NiF_4_構造をもつSr_2_VO_4_の、キュービックアンビル型装置を用いた高圧下単結晶電気伝導度測定から得られた温度圧力相図を報告する。本系の高圧下物性探索に関して、多結晶試料とDACを用いた30 GPa程度までの先行研究が2015年に発表されており、20 GPa以上での圧力誘起-金属絶縁体-転移/クロスオーバーが報告されている。今回の我々の研究では、常圧下での試料結晶の厳格な評価選別と、装置の高い静水圧性が相まって、先行研究とは全く異なる温度圧力相図を得た。</p>
High-pressure properties in K2NiF4 structure type α-Sr2CrO4
Yamauchi Touru, Shimazu Taku, Sakurai Hiroya, Ohama Tetsuo, Hiroi Zenji, Uwatoko Yoshiya
Meeting Abstracts of the Physical Society of Japan   2016   
<p>K_2_NiF_4_構造をもつ!LaTeXTex-Sr_2_CrO_4_の, 高圧下電気抵抗測定と高圧下磁気測定から得られた物性と, それらの結果によって描かれる温度圧力相図を報告する。本系はc軸方向に伸長した6配位構造の中心にCr^{4+}^が位置する。この伸長によって通常, !LaTeXTex電子配置は2重縮退した!LaTeXTex, !LaTeXTex軌道を占め, 軌道自由度は無いと考えられる. ところが, この系に於いてはCr-Oのhy...
24aBF-5 New materials research in ternary Bi-Re-O system
Ueda Y., Yamauchi T.
Meeting Abstracts of the Physical Society of Japan   2015   
18aDB-4 Pressure effect for iron-based spin-ladder compound BaFe_2S_3
Kawashima C., Sugimoto A., Soeda H., Takahashi H., Matsubayashi K., Uwatoko Y., Nakano S., Yamauchi T., Hirata Y., Ohgushi K.
Meeting Abstracts of the Physical Society of Japan   2015   

Association Memberships