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RIKEN Center for Emergent Matter Science Quantum Materials Innovation Research Team

Team Director: Atsushi Tsukazaki (D.Sc.)

Research Summary

Atsushi Tsukazaki

Our team focuses on the physical properties of quantum materials, specifically thin films and their stacked interfaces. We develop thin-film fabrication techniques for materials that exhibit topological electronic states, and evaluating the unique physical properties of thin films. In addition, by leveraging advanced thin-film techniques, we effectively explore novel quantum materials exhibiting remarkable physical properties. We aim to elucidate the origins of these properties and develop new functionalities. Our research extends to demonstrating functional creation through property control, aiming to develop low-power consumption devices.

Main Research Fields

  • Interdisciplinary Science & Engineering

Related Research Fields

  • Mathematical & Physical Sciences
  • Thin film/surface and interfacial physical properties-related
  • Applied physical properties-related
  • Semiconductors, optical properties of condensed matter and atomic physics-related

Keywords

  • Physical properties of thin-films and interfaces
  • Quantum Materials
  • Magnetic devices
  • Superconducting thin films
  • Quantum transport phenomena

Selected Publications

Papers with an asterisk(*) are based on research conducted outside of RIKEN.

    • 1.M. Osada, C. Terakura, A. Kikkawa, M. Nakajima, H.-Y. Chen, Y. Nomura, Y. Tokura, and A. Tsukazaki.:
      "Strain-tuning for superconductivity in La3Ni2O7 thin films"
      Communications Physics, 8, 251 (2025).
    • 2.* S. Noguchi, K. Fujiwara, Y. Yanagi, M. Suzuki, T. Hirai, T. Seki, K. Uchida, and A. Tsukazaki.:
      "Bipolarity of large anomalous Nernst effect in Weyl magnet-based alloy films"
      Nature Physics, 20, 254 (2024).
    • 3.* K. Fujiwara, Y. Kato, H. Abe, S. Noguchi, J. Shiogai, Y. Niwa, H. Kumigashira, Y. Motome, and A. Tsukazaki.:
      "Berry curvature contributions of kagome lattice fragments in amorphous Fe-Sn thin films"
      Nature Communications, 14, 3399 (2023).
    • 4.* J. Shiogai, K. Fujiwara, T. Nojima, and A. Tsukazaki.:
      "Three-dimensional sensing of the magnetic-field vector by a compact planar-type Hall device"
      Communications Materials, 2, 102 (2021).
    • 5.* J. Ikeda, K. Fujiwara, J. Shiogai, T. Seki, K. Nomura, K. Takanashi, and A. Tsukazaki.:
      "Two-dimensionality of metallic surface conduction in Co3Sn2S2 thin films"
      Communications Physics, 4, 117 (2021).

    Lab Members

    Principal investigator

    Atsushi Tsukazaki
    Team Director

    Contact Information

    Room 304-1, Frontier Research Laboratory,
    2-1 Hirosawa,
    Wako, Saitama
    351-0198, Japan
    Email: atsushi.tsukazaki@riken.jp

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