Centers & Labs

RIKEN Center for Emergent Matter Science

Cross-Correlated Interface Research Unit

Unit Leader: Pu Yu (Ph.D.)
Pu  Yu(Ph.D.)

Our research unit is dedicated to exploring the emergent phenomena at complex oxide and other cross-correlated heterostructures and interfaces. In particular, we are interested about quantum manipulation of ferroelectric and ferromagnetic properties by means of heteroepitaxy, artificial design of novel multiferroic materials with strong magnetoelectric coupling and emergent phenomena (with a strong focus on the spin and charge degrees of freedom) at complex oxide interfaces and their cross correlations to other correlated material systems. Our goal is to reveal the underlying mechanisms of these heretofore-unexplored functionalities, and transfer them into novel device concepts for applications.

Main Research Field

Interdisciplinary science and engineering

Related Research Fields

Complex systems


  • Ferroelectric
  • multiferroic
  • magnetoelectric coupling
  • low dimensional magnetism

Selected Publications

  1. Lu, N., Zhang, P., Zhang, Q., et al.:
    "Electric-field control of tri-state phase transformation with a selective dual-ion switch" Nature. 546,124(2017)
  2. Tselev, A., Yu, P., Cao, Y., et al.:
    "Microwave a.c. conductivity of domain walls in ferroelectric thin films"
    Nature Communications, 7, 11630 (2016)
  3. Yu, P., Chu, Y. H. and Ramesh, R.:
    "Oxide Interfaces: Pathways to Novel Phenomena"
    Materials Today 15, 320. (2012)
  4. Yu, P., Luo, W., Yi, D., et al.:
    "Interface control of bulk ferroelectric polarization"
    Proc. Natl. Acad. Sci. USA 109, 9710 (2012)
  5. Wu, S. W., Cybart, S. A., Yu, P., et al.:
    "Reversible Electric Control of Exchange Bias in a Multiferroic Field Effect Device"
    Nature Mater. 9, 756 (2010)
  6. Yu, P., Lee, J. S., Okamoto, S., et al.:
    "Interface ferromagnetism and orbital reconstruction in BiFeO3-La0.7Sr0.3MnO3 heterostructures"
    Phys. Rev. Lett. 105, 027201 (2010)
  7. Maksymovych, P., Jesse, S., Yu, P., et al.:
    "Polarization Control of Electron Tunneling into Ferroelectric Surfaces"
    Science 324, 1421 (2009)

Contact information

Building 44-1-501
Department of Physics, Tsinghua University, Beijing, 100084, China

Email: yupu [at]

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