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RIKEN Center for Emergent Matter Science Topological Quantum Phenomena Research Unit

Unit Leader: Tian Liang (Ph.D.)

Research Summary

Tian Liang (Ph.D.)

In our unit, we aim to investigate the intriguing physical properties in topological phases of matter and strongly correlated electron system, through the research based on the condensed matter experiment. First, from fundamental physics point of view, we pay attention to the nontrivial geometrical properties of the band structure, and aim to measure the novel electrical, thermal, and magnetic quantum effect on the system. In addition, from application point of view, we work on the design of high quality thermoelectric material and devices with low dissipation. In order to achieve the above mentioned goals, we will collaborate with the researchers all over the world and enhance the understanding of physics both from the fundamental and application aspects.

Main Research Fields

  • Mathematical & Physical Sciences

Related Research Fields

  • Interdisciplinary Science & Engineering
  • Condensed matter physics I - Semiconductors
  • Condensed matter physics II - Ultralow temperature/Condensed quantum system

Keywords

  • Condensed matter physics
  • Topological quantum matters
  • Berry phase physics
  • Thermoelectric effect
  • Strongly Correlated electron system

Selected Publications

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

  • 1. Tian Liang†
    "Anomalous transport properties in topological semimetals"
    Elsevier, 2021 doi: 10.1016/bs.semsem.2021.07.003
  • 2. C.-L. Zhang*†, T. Liang*†, M. S. Bahramy*, N. Ogawa, V. Kocsis, K. Ueda, Y. Kaneko, M. Kriener, Y. Tokura.:
    "Berry curvature generation detected by Nernst responses in ferroelectric Weyl semimetal"
    PNAS, 2021
  • 3. C.-L. Zhang*†, T. Liang*†, N. Ogawa, Y. Kaneko, M. Kriener, T. Nakajima, Y. Taguchi, Y. Tokura
    "Highly tunable topological system based on PbTe-SnTe binary alloy"
    Phys. Rev. Mater. 4, 091201 (2020)
  • 4. *T. Liang*†, J. Lin*, Q. Gibson, S. Kushwaha, M. Liu, W. Wang, H. Xiong, J. A. Sobota, M. Hashimoto, P. S. Kirchmann, Z. X. Shen, R. J. Cava, N. P. Ong†
    "Anomalous Hall effect in ZrTe5"
    Nature Physics, 14, 451, (2018)
  • 5. *T. Liang*†, T. H. Hsieh, J. J. Ishikawa, S. Nakatsuji, L. Fu, N. P. Ong*†
    "Orthogonal magnetization and symmetry breaking in pyrochlore iridate Eu2Ir2O7"
    Nature Physics, 13, 599, (2017)
  • 6. *T. Liang, S. Kushwaha, J. Kim, Q. Gibson, J. Lin, N. Kioussis, R. J. Cava, N. P. Ong†
    "A pressure-induced topological phase with large Berry curvature in Pb1-xSxxTe"
    Science Advances, 3, (2017)
  • 7. *T. Liang†, J. Lin, Q. Gibson, T. Gao, M. Hirschberger, M. Liu, R. J. Cava, N. P. Ong
    "Anomalous Nernst Effect in the Dirac Semimetal Cd3As2"
    Phys. Rev. Lett., 118:136601, (2017)
  • 8. *T. Liang, S. M. Koohpayeh, J. W. Krizan, T. M. McQueen, R. J. Cava, N. P. Ong†
    "Heat capacity peak at the quantum critical point of the transverse Ising magnet CoNb2O6"
    Nature communications, 6, (2015)
  • 9. *T. Liang, Q. Gibson, M. N. Ali, M. Liu, R. J. Cava, N. P. Ong†
    "Ultrahigh mobility and giant magnetoresistance in the Dirac semimetal Cd3As2"
    Nature materials, 14, 280, (2015)
  • 10. *T. Liang, Q. Gibson, J. Xiong, M. Hirschberger, S. P. Koduvayur, R. J. Cava, N. P. Ong†
    "Evidence for massive bulk Dirac fermions in Pb1-xSnxSe from Nernst and thermopower experiments"
    Nature communications, 4, (2013)

Lab Members

Principal investigator

Tian Liang
Unit Leader

Contact Information

Room C337, Physics Building
100084 Department of Physics,
Tsinghua University, Beijing, China
Tel: +86 (0)10-6279-4683
Fax: +86 (0)10-6278-1604
Email: tian.liang [at] riken.jp

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