Shigeki Onoda

J-GLOBAL         Last updated: Oct 24, 2018 at 15:49
Shigeki Onoda
Shigeki Onoda

Academic & Professional Experience

Apr 2008
Senior Research Scientist, RIKEN
Apr 2007
Mar 2008
Research Scientist, RIKEN

Published Papers

Yasuyuki Kato, Shigeki Onoda
Phys. Rev. Lett. 115, 077202 (2015)      Nov 2014
Unbiased quantum Monte-Carlo simulations are performed on the
nearest-neighbor spin-Tex pyrochlore XXZ model with an
antiferromagnetic longitudinal and a weak ferromagnetic transverse exchange
couplings, Tex and Tex. The specific h...
Hiroshi Ueda, Shigeki Onoda
   Jun 2014
Frustrated spin-Tex XXZ zigzag chains relevant to
RbTexCuTexMoTexOTex are revisited in the light of symmetry-protected
topological (SPT) phases. Using a density-matrix renormalization group method
for infinite systems, we identify project...
Hiroshi Ueda, Shigeki Onoda
Phys. Rev. B 89, 024407 (2014)      Aug 2013
A frustrated spin-Tex XXZ chain model comprising a ferromagnetic
nearest-neighbor coupling with the bond alternation, Tex, and
an antiferromagnetic second-neighbor exchange coupling Tex is studied at
zero and weak magnetic fi...
Shigeki Onoda
J. Phys.: Conf. Series 320, 012065 (2011)      Jan 2011
An effective quantum pseudospin-1/2 Hamiltonian for Yb_2TM_2O_7 (TM = Ti and
Sn) is obtained in terms of the atomic Kramers ground doublet of the LS
coupling and the crystalline electric field, which is almost described with
J^z=\pm 1/2. It is cal...
Shigeki Onoda, Yoichi Tanaka
Phys.Rev.B83:094411,2011      Nov 2010
The effective quantum pseudospin-1/2 model for interacting rare-earth
magnetic moments, which are locally described with atomic doublets, is studied
theoretically for magnetic pyrochlore oxides. It is derived microscopically for
localized Pr^{3+} ...


Sho Nakosai, Shigeki Onoda
   Jan 2018
Magnetic monopoles are hypothetical particles that may exist as quantized
sources and sinks of the magnetic field. In materials, they may appear in an
emergent quantum electrodynamics described by a U(1) lattice gauge theory.
Particularly, quantum...
Shigeki Onoda, Fumiyuki Ishii
   Dec 2016
Insulating magnetic rare-earth pyrochlores related to spin ice host emergent
bosonic monopolar spinons, which obey a magnetic analogue of quantum
electrodynamics and may open a route to a magnetic analogue of electronics.
However, the energy scale...
Onoda Shigeki
Meeting Abstracts of the Physical Society of Japan   71(0) 977-978   2016
Onoda S., Datta T.
Meeting Abstracts of the Physical Society of Japan   71(0)    2016
Hamachi N., Yasui Y., Kono Y., Kittaka S., Sakakibara T., Chang L. J., Onoda S., Watanabe I.
Meeting Abstracts of the Physical Society of Japan   70(0)    2015

Conference Activities & Talks

上田宏, 小野田繁樹, 小野田繁樹, 山口泰弘, 木村剛, 吉澤大智, 森岡俊晶, 萩原政幸, 萩原雅人, 左右田稔, 益田隆嗣, 榊原俊郎, 富安啓輔, 河村聖子, 中島健次, 梶本亮一, 中村充孝, 稲村泰弘, 長谷正司, 安井幸夫
日本物理学会講演概要集(CD-ROM)   23 Mar 2018   
吉澤大智, 森岡俊晶, 赤木暢, 藤村明央, 安井幸夫, 上田宏, 小野田繁樹, 萩原政幸
電子スピンサイエンス学会年会講演要旨集   10 Nov 2016   
小野田繁樹, 小野田繁樹, DATTA T.
日本物理学会講演概要集(CD-ROM)   22 Mar 2016   
石井史之, 水田耀ピエール, 加藤毅大, 尾崎泰助, WENG H., 小野田繁樹
日本物理学会講演概要集(CD-ROM)   24 Sep 2015   

Association Memberships