Selected Recent Publications

  1. "Epitaxial growth of large-gap quantum spin Hall insulator on semiconductor surface", Miao Zhou, Wenmei Ming, Zheng Liu, Zhengfei Wang, Ping Li, Feng Liu, PNAS 111, 14378 (2014) (localcopy).
  2. "Tuning Topological Edge States of Bi(111) Bilayer Film by Edge Adsorption", Z. F. Wang, Li Chen, and Feng Liu, Nano Lett., 14, 2879 (2014) (localcopy)
  3. "Strain-Engineered Surface Transport in Si(001): Complete Isolation of the Surface State via Tensile Strain", M. Zhou, Z. Liu, Z. Wang, Z. Bai, Y. Feng, M. G. Lagally, and Feng Liu, Phys. Rev. Lett. 111,246801 (2013) (localcopy).
  4. "First-Principles Calculations on the Effect of Doping and Biaxial Tensile Strain on Electron-Phonon Coupling in Graphene", C. Si, W. Duan, Z. Liu, and Feng Liu, Phys. Rev. Lett. 111, 196802 (2013) (localcopy).
  5. "Spatially separated spin carriers in spin-semiconducting graphene nanoribbons", Z. F. Wang, S. Jin and Feng Liu, Phys. Rev. Lett. 111, 096803 (2013) (localcopy).
  6. “Prediction of a Two-Dimensional Organic Topological Insulator”, Z. F. Wang, Ninghai Su, and Feng Liu, Nano Letters, 13, 2842 (2013) (localcopy).
  7. "Organic topological insulators in organometallic lattices", Z. F. Wang, Zheng Liu and Feng Liu, Nature Commun. 4, 1471 (2013) (localcopy). [See also news report at ScienceDaily:http://www.sciencedaily.com/releases/2013/02/130213132431.html]
  8. "Flat Chern Band in a Two-Dimensional Organometallic Framework", Z. Liu, Z. F. Wang, J.-W. Mei, Y. Wu and Feng Liu, Phys. Rev. Lett. 110, 106804 (2013) (localcopy).
  9. "Quantum anomalous Hall effect in 2D organic topological insulator", Z. F. Wang, Z. Liu and Feng Liu, Phys. Rev. Lett. 110, 196801 (2013) (localcopy).
  10. "Quasiparticle Dynamics in Reshaped Helical Dirac Cone of Topological Insulators", L. Miao, Z. F. Wang, W. Ming, M. Yao, M. Wang, F. Yang, F. Zhu, A. V. Fedorov, Z. Sun, C. L. Gao, C. Liu, Q. Xue, Feng Liu, D. Qian, J. Jia, PNAS 110, 2758 (2013) (localcopy).
  11. "Creation of Helical Dirac Fermions by Interfacing Two Gapped Systems of Ordinary Fermions", Z.F. Wang, M.-Y. Yao, W. Ming, L. Miao, F. Zhu, C. Liu, C. L. Gao. D. Qian, J.F. Jia, and Feng Liu, Nature Communications, Nature Commun., 4, 1384 (2013) (localcopy).
  12. "Electronic strengthening of graphene by charge doping", C. Si, W. Duan, Z. Liu, and Feng Liu, Phys. Rev. Lett. 109, 226802 (2012) (localcopy).
  13. "Anisotropic Strain Enhanced Hydrogen Solubility in bcc Metals: The Independence on the Sign of Strain", H.-B. Zhou, S. Jin, Y. Zhang, and G.-H. Lu, and Feng Liu, Phys. Rev. Lett. 109, 135502 (2012) (localcopy).
  14. "Quantitative Model of Heterogeneous Nucleation and Growth of SiGe Quantum Dot Molecules", H. Hu, H. Gao, and Feng Liu, Phys. Rev. Lett. 109, 106103 (2012) (localcopy).
  15. “Spin-enhanced organic bulk heterojunction photovoltaic solar cells”, Y. Zhang, T. P. Basel, B. R. Gautam, X. Yang, D. J. Mascaro, Feng Liu & Z. V. Vardeny, Nature Commun. 3, 1043 (2012) (localcopy).
  16. "Fractal Landau-Level Spectra in Twisted Bilayer Graphene", Z. F. Wang, Feng Liu, and M. Y. Chou, Nano Lett., 12, 3833 (2012) (localcopy).

Selected Book/Encyclopedia Chapters and Reviews

  1. “Nanomechanical Architecture --- A Mechanics-Driven Nanofabrication Approach”, Feng Liu, M. G. Lagally and J. Zang, MRS Bulletin 34, 190 (2009). (Invited review) (localcopy).

  2. "Modeling and Simulation of Strain-Mediated Nanostructure Formation on Surface", Feng Liu, in "Handbook of Theoretical and Computational Nanotechnology", eds. M. Rieth and W. Schommers, Chapter 10, 577-625 (2006) (localcopy).

  3. "Computational R&D for Industrial Applications" , Feng Liu, News Article of Center for High-Performance Computing, University of Utah, Fall issue, p. 1 (2005). (invited article) (localcopy).

  4. Surfaces and Interfaces, Structure of, Feng Liu, M. Hohage, and M.G. Lagally, Encyclopedia of Appl. Phys., eds. H. Immergut and G. Trigg, Supplement Volume, 321-352 (1999) (localcopy).

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This book chapter provides an overview of the progress made in the last decade on theoretical modeling and computer simulation of strain-mediated formation of nanostructures on surface, focusing on strain-induced self-assembly and self-organization of two-dimensional patterns and structures. As part of a handbook, the main objective is to provide a general introduction of the basic concepts and physical models along with some relatively detailed discussion of mathematical derivations and technical treatments so that readers, especially graduate students who are interested in this topic can use this chapter as a guide and reference to start their own modeling and simulation.

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This encyclopedia article gives an overview of basic concepts and fundamental principles underlying the structure of solid surfaces and interfaces. A brief discussion of surface thermodynamics is provided in the context of the Gibbs model, and the relationship between surface stress and surface tension for a solid surface is established. Basic definitions and notations of surface crystallography are introduced for the description of structures of single-crystal surfaces. Surface relaxation and surface reconstruction are discussed in detail and illustrated with examples of semiconductor and metal surfaces. Underlying physical mechanisms relating the atomic structure to the electronic structure are summarized. A qualitative description of the morphology of real surfaces, interfaces, and thin films is provided.

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Liuh

Feng Liu

Professor and Chair, Department of Materials Science and Engineering, University of Utah

Email: fliuATeng.utah.edu

Tel: 801-587-7719

Fax: 801-581-4816

Mail: Room 304, 122 S. Central Campus Drive, Salt Lake City, UT 84112

 

Research Interest

Our research interests lie in the materials modeling and simulation from the atomic to mesoscopic scales. We develop and apply both first-principles computational methods and phenomenological theoretical models to study a wide spectrum of materials properties in various materials systems. Most recently, we have focused on modeling and simulation of properties of surfaces and interfaces, growth mechanisms of thin films, and self-assembly and self-organization of nanostructures.

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