Centers & Labs

RIKEN Center for Emergent Matter Science

Computational Quantum Matter Research Team

Team Leader: Seiji Yunoki (D.Eng.)
Seiji  Yunoki(D.Eng.)

Materials exhibit a wide variety of properties including metal, semiconductor, magnetism, and superconductor. These different properties are caused by the different behavior of electrons inside materials. The main purpose of our research team is to microscopically understand a variety of quantum phenomena in solid materials using state-of-the-art numerical simulations. The electron in materials interacts with other electrons via Coulomb interaction, nuclei via electron-phonon interaction, and itself via spin-orbit interaction. We particularly focus on emergent quantum phenomena induced cooperatively by these interactions.

Main Research Field

Physics

Related Research Fields

Materials Sciences

Research Subjects

  • Electronic and magnetic structures of transition metal oxides
  • Electronic structure and quantum transport in superlattice structures and heterostructures
  • Quantum emergent phenomena of magnetism and superconductivity

Selected Publications

  1. A. Annadi, Q. Zhang, X. Renshaw Wang, N. Tuzla, K. Gopinadhan, W. M. Lu, A. Roy Barman, Z. Q. Liu, A. Srivastava, S. Saha, Y. L. Zhao, S. W. Zeng, S. Dhar, E. Olsson, B. Gu, S. Yunoki, S. Maekawa, H. Hilgenkamp, T. Venkatesan, and A. Ariando
    "Anisotropic two-dimensional electron gas at the LaAlO3/SrTiO3 (110) interface"
    Nature Communications 4, 1838/1-7 (2013)
  2. H. Watanabe, T. Shirakawa, and S. Yunoki
    "Monte Carlo study of an unconventional superconducting phase in iridium oxide Jeff = 1/2 Mott insulators induced by carrier doping"
    Phys. Rev. Lett. 110, 027002/1-5 (2013)
  3. Q. Zhang, S. Dong, B. Wang, and S. Yunoki
    "Strain-engineered magnetic order in (LaMnO3)n/(SrMnO3)2n superlattices"
    Phys. Rev. B 86, 094403/1-7 (2012)
  4. S. Dong, Q. Zhang, S. Yunoki, J.-M. Liu, and E. Dagotto
    "Magnetic and orbital order in (RMnO3)n/(AMnO3)2n superlattices studied via a double-exchange model with strain"
    Phys. Rev. B 86, 205121/1-10 (2012)
  5. S. Dong, Q. Zhang, S. Yunoki, J.-M. Liu, and E. Dagotto
    "Ab initio study of the intrinsic exchange bias at the SrRuO3/SrMnO3 interface"
    Phys. Rev. B 84, 224437/1-6 (2011)
  6. Q. Zhang, S. Hikino, and S. Yunoki
    "First-principles study of the spin-mixing conductance in Pt/Ni81Fe19 junctions"
    Appl. Phys. Lett. 99, 172105/1-3 (2011)

Lab Members

Principal Investigator

Seiji Yunoki
Team Leader

Core Members

Tomonori Shirakawa
Research Scientist
Kazuto Noda
Visiting Researcher

Contact information

2-1 Hirosawa, Wako, Saitama 351-0198, Japan

Email: yunoki [at] riken.jp