Current Research Group

Brief Scientific History  Brief Scientific History

Full CV  Full CV

Research Highlights  Research Highlights

Books, Workshops, Panel Reports  Books, Workshops, Panel Reports

Previous Students and Postdocs  Previous Students and Postdocs

Previous Students and Postdocs  Present Research Group

Brief Scientific History  EliashMEM Program

Affiliated Research Centers and Groups  Institute for Advanced Materials

Professor Ward Plummer
229-C Nicholson Hall, Tower Dr.
Dept. of Physics & Astronomy
Louisiana State University
Baton Rouge, LA 70803-4001
Phone: (225) 578-3300
Fax: (225) 578-5855

EWP Home Page

Current Postdoctoral/Graduate Student Research

Jisun Kim | Hangwen Guo|Yifan Yang |Mohammad Saghayezhian

Jisun Kim

Jisun Kim joined the group in July, 2012 as a Postdoctoral Fellow. She got her Ph. D. degree at the University of Texas at Austin, with work mainly focused on metal thin films grown on semiconductor substrates using molecular beam epitaxy (MBE) and studied with low temperature scanning tunneling microscope (LT-STM). More details on her previous work can be found in here. Her current research projects are related to correlated electron materials, including Fe-based superconductors studied with variable temperature STM and low energy electron diffraction (LEED). Dr. Kim's CV is available here.


Hangwen Guo

Hangwen Guo received his bachelor degree in Physics from Fudan University, China in 2007. His Ph.D in Physics was awarded in 2013, from University of Tennessee at Knoxville, joint with Oak Ridge National Labortory, working with Dr Zac Ward and Dr. Jian Shen. His research is focused on the growth and characterization of complex oxide thin films and heterostructures, especially exploring novel properties at oxide interfaces with atomic level control.




Yifan Yang


Yifan Yang joined Ward Plummer's group as a Ph.D candidate at 2016. His current project focused on surfaces and thin films of Fe oxides.






Mohammad Saghayezhian came to LSU in August 2011 and joined the group in April 2012 as a graduate student under joint supervision of Prof. Zhang and Prof. Plummer. He has finished his MSc in Computational Condensed Matter in Feb 2011 and changed the direction his work to experimental condensed matter at LSU. He is currently focused on the study of thin films grown in polar directions and their in-situ (such as LEED, XPS, UPS and STM) and ex-situ (XRD, Magnetic and Transport measurement) characterization. He is also interested in engineering the interactions within the thin films to to find emerging phenomena. Mohammad's CV can be found here.


Recently Graduated Students

Chen Chen |  Lina Chen |  Guorong Li  |  Biao Hu | Zhaoliang Liao  |  Fangyang Liu

Chen Chen

Chen Chen is from University of Science and Technology of China, and came to LSU in 2009.  He is focused on Fe-pnictide superconducting systems using HREELS (High Resolution Electron Energy Loss Spectroscopy).

Chen graduated in 2016. His thesis is: Structure and Dynamics of Layered Transition Metal Compounds Driven by Broken Symmetry.



Lina Chen

Lina Chen came to LSU in 2009.  She focuses on growing and measuring properties of thin films and tries to understand the surface/interface properties and effects.

Lina Graduated in 2016. Her thesis is: Microscopic Study of Structure, Chemical Composition and Local conductivity of LSMO Films.




Guorong LiGuorong Li joined Ward Plummer's group as a Ph.D candidate at 2007. His studied the couplings between spin, charge and lattice in Fe-based superconducting compounds using low temperature Scanning Tunneling Microscopy (STM) and Low Energy Electron Diffraction (LEED). In detail, he had atomically imaged spin chirality on anti-phase domain surface of BaFe2As2 using STM and the paper is available here. He and Dr. Xiaobo He found the nano-scale chemical phase separation in FeTe1-xSex using STM and the paper is available here. His studied the strong coupling of spin, charge and lattice on the stripe (1x2) phase on the surface of CaFe2As2 (paper in preparation). He also had determined the surface structure for the above three systems using LEED IV analysis. Besides Fe-based superconductors, he studied the local dopant effects in Mn-doped Sr3Ru2O7 using STM (paper in preparation)Current CV is available here.

Gurong graduated in 2013. His thesis is: Coupling Between Spin, Lattice, and Charge at The Surface of Complex Transiton Metal Compounds.


Biao Hu

Biao Hu, received his B.S. in Physics from Lanzhou University, China, in July, 2002 and M.S. in Physics from Fudan University, China, in July, 2005. He came to the U.S. and started his graduate study in Department of Physics & Astronomy in The University of Tennessee, Knoxville, Tennessee, in August 2005. In September 2009, he transferred to Department of Physics & Astronomy in Louisiana State University, Baton Rouge, Louisiana, to continue his doctoral program.

Biao obtained his Doctor of Philosophy degree in physics in August, 2011. His thesis involved the study of structural and physical properties of transition metal oxide in bulk and surface. His thesis title is “Evolution of
Structural and Physical Properties of Transition Metal Oxide Sr3(Ru1-xMnx)2O7 (0 ≤ x ≤ 0.7) with Mn Concentration”. His thesis work was done with Professor Rongying Jin (Co-advisor). His work was recognized by LSU Physics Department with the Ganesh Chanmugam Distinguished Dissertation Award.

Zhaoliang Liao

Zhaoliang Liao is a LSU-Institute of Physics (IOP) Dual-Degree student from IOP, Chinese Academy of Sciences.  After three years studying on electric field induced resistance switching in thin film in IOP, he now is focusing on emergent phenomena in spatial confined complex transition metal oxide through Laser-MBE, LEED, STM/AFM and advanced Lithography technique, et al.  Current CV is available here.

Zhaoliang graduated in 2013. His thesis is: The effects of Spatial Confinement and Oxygen Stiochiometry on Complex Metal Oxides.




Fangyang Liu

Fangyang Liu is from the University of Science and Technology of China, and came to LSU in 2009.  He is focused on surfaces and thin films of Fe oxides and grow it by PLD (Pulse Laser Deposition).

Fangyang graduated in 2016. His thesis is: Surface Strucure/Property Relationship for (001) Surface of Magnetite.