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2D Ferroics

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Two-dimensional (2D) systems hold a very special place in the development of condensed matter physics. Without exaggeration, the modern understanding of condensed matter physics has been shaped by three fundamental models: Ising, XY, and Heisenberg models in 2D. These models revolve around a fundamental question: Can a phase transition be stable within the given models at a finite temperature? Although theorists have extensively and intensively studied these models, progress in experimental investigations has been relatively slow. The landscape has drastically evolved with the recent discovery of new 2D van der Waals (vdW) materials with (anti)ferromagnetism, ferroelectricity, and multiferroicity. With several 2D materials reported to exhibit stable orders down to single atomic layers, a door is wide open for entirely new research directions. This collection focuses on the experimental and theoretical exploration of these emerging new 2D materials with stable ferroic behavior in the ultrathin limit.

The topics will include, but are not limited to:

  • Theoretical description and prediction of ferroic 2D vdW materials
  • Experimental demonstration of ferroic 2D vdW materials
  • Application of ferroic 2D vdW materials that lead to novel properties
  • Investigation of the interplay between magnetism and ferroelectricity
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2D Ferroics

Editors

  • Je-Geun Park

    Professor, Department of Physics and Astronomy, Seoul National University, Korea

  • Riccardo Comin

    Professor, Department of Physics, Massachusetts Institute of Technology (MIT), USA

  • Silvia Picozzi

    Director of Research, Consiglio Nazionale delle Ricerche (CNR, public research institution), Institute for Superconducting and Innovative materials and Devices (SPIN), Italy

  • Di Xiao

    Campbell Chair, Department of Materials Science & Engineering, College of Engineering, University of Washington, USA

  • Qikun Xue

    Professor, Department of Physics, Tsinghua University, China

Je-Geun Park is a Professor at Seoul National University, Korea. He received a B.Sc. degree in 1988, an M.Sc. in 1990 from the Department of Physics at Seoul National University, Korea, and a PhD from the Department of Physics at Imperial College, UK, in 1993. His research field is strongly correlated electron systems, particularly magnetism using neutron and x-ray scattering techniques. He received various prestigious awards: the POSCO Science Prize in 2023, the Korea Science Award in 2016, the most prestigious science prize in the nation, and the Korean Physical Society Prize in 2015, to name only a few. He is a member of the Korean Academy of Science and Technology (2017~).

Riccardo Comin is an Associate Professor of Physics at MIT. He completed his undergraduate studies at the Universita’ degli Studi di Trieste in Italy, where he also obtained a M.Sc. in Physics in 2009. Later, he pursued doctoral studies at the University of British Columbia, Canada, earning a PhD in 2013. From 2014 to 2016 he has been an NSERC postdoctoral fellow at the University of Toronto. Professor Comin’s research explores the novel phases of matter that can be found in electronic solids with strong interactions, also known as quantum materials. The Comin lab adopts a combination of synthesis, scattering, and spectroscopy to study electronic symmetry breaking and emergent phases of matter and their excitations in quantum solids. Among the systems of interest in his group are transition metal-based compounds hosting exotic phases of quantum matter including high-temperature superconductivity, 2D magnetism, and charge/spin-density-waves.

Silvia Picozzi is currently Director of Research at Consiglio Nazionale delle Ricerche (CNR, public research institution) at the Institute for Superconducting and Innovative materials and Devices (SPIN) in Chieti (Italy). Her activity is related to materials modeling (mostly simulations based on density functional theory, but also symmetry analysis and model Hamiltonian) in the field of functional materials (such as ferroelectrics, (anti)-ferromagnets), multiferroics) and materials with strong spin-orbit interaction (i.e. Rashba-Dresselhaus effects, topological matter). 

 

Di Xiao is the Campbell Chair in the College of Engineering to the position of chair of the Department of Materials Science & Engineering. He joined the University of Washington in 2021, and holds a joint position with MSE, the Department of Physics, and PNNL. Previously, he was a professor of Physics at Carnegie Mellon University. Di is a renowned theorist in the field of quantum materials. He is a pioneer in the fields of quantum valleytronics, two-dimensional (2D) van der Waals magnets, and the application of novel topological phase effects in 2D quantum materials.
 

Qikun Xue received his PhD degree in condensed matter physics from Institute of Physics, the Chinese Academy of Sciences (CAS) in 1994. From 1994 to 2000, he worked as a Research Associate at IMR, Tohoku University, Japan and a visiting Assistant Professor at Department of Physics, North Carolina State University, USA. He became a professor at Institute of Physics, CAS in 1999. He was elected into The Chinese Academy of Sciences in 2005. Since 2005, he has been a professor in the Department of Physics, Tsinghua University. From 2010 to 2013, he was the Chair of the Department of Physics and the Dean of School of Sciences. He became the Vice President for Research of Tsinghua University in May 2013. He won the TWAS Prize in Physics in 2010. His research interests include scanning tunneling microscopy/spectroscopy, molecular beam epitaxy, low-dimensional and interface-related superconductivity, topological insulators, and quantum size effects in various low-dimensional structures.