Centers & Labs

RIKEN Center for Emergent Matter Science

Spin Physics Theory Research Team

Team Leader: Gen Tatara (D.Sci.)
Gen  Tatara(D.Sci.)

Our aim is to explore novel spin-related effects with extremely high efficiency in condensed matters. We thus contributes to development of spintronics, a technology using spin as well as charge of electrons, and to realization of ultrafast and high-density information technology with low energy consumption. Our particular interest is at present in a strong quantum relativistic effect in solids, which is applicable to very strong magnets and efficient conversion of spin information to an electric signal. Our main method is a field theory.

Main Research Field

Mathematical and physical sciences

Related Research Fields

Interdisciplinary science and engineering

Keywords

  • Spintronics

Selected Publications

  1. Fumiya Nagasawa, Diego Frustaglia, Henri Saarikoski, Klaus Richter, and Junsaku Nitta:
    "Control of spin geometric phase in semiconductor quantum rings"
    Nature Communications 4, 2526 (2013).
  2. Hideo Kawaguchi,G. Tatara:
    Effective Hamiltonian theory for nonreciprocal light propagation in magnetic Rashba conductor Phys. Rev. B 94,235148 (1-8) (2016).
  3. Toru Kikuchi, Takashi Koretsune, Ryotaro Arita, G. Tatara:
    Dzyaloshinskii-Moriya interaction as a consequence of a Doppler shift due to
    spin-orbit-induced intrinsic spin current
    Phys. Rev. Lett. 116,247201 (1-6) (2016).(PRL Editors' Suggestion)
  4. Junya Shibata, Akihito Takeuchi, Hiroshi Kohno, and Gen Tatara:
    Theory of Anomalous Optical Properties of Bulk Rashba Conductor
    J.Phys. Soc. Japan 85,033701 (1-5) (2016).
  5. Gen Tatara:
    Thermal Vector Potential Theory of Transport Induced by a Temperature Gradient
    Phys. Rev. Lett.114, 196601 (1-5) (2015).
  6. Gen Tatara, Hiroshi Kohno and Junya Shibata:
    "Microscopic Approach to Current-driven Domain Wall Dynamics"
    Phys. Rep., 468 , 213-301 (2008).
  7. Gen Tatara and Hidetoshi Fukuyama:
    "Phasons and Excitations in Skyrmion Lattice"
    J. Phys. Soc. Jpn., 83 104711(1-15) (2014).
  8. Henri Saarikoski, Hiroshi Kohno, Christopher H. Marrows, and Gen Tatara:
    "Current-driven dynamics of coupled domain walls in a synthetic antiferromagnet"
    Phys. Rev. B, 90, 094411(1-8) (2014).
  9. Hideo Kawaguchi and Gen Tatara:
    "Coupling Theory of Emergent Spin Electromagnetic Field and Electromagnetic Field"
    J. Phys. Soc. Jpn., 83, 074710 (1-6) (2014).
  10. N. Nakabayashi and G. Tatara:
    "Rashba-induced spin electromagnetic _elds in a strong sd coupling region"
    New J. Phys., 16 015016 (1-18) (2014).

Lab Members

Principal Investigator

Gen Tatara
Team Leader

Core Members

Collins Ashu Akosa
Postdoctoral Researcher
Atsuo Shitade
Special Postdoctoral Researcher
Yuta Yamane
Visiting Researcher
Junji Fujimoto
Research Fellow