My research activity includes following points: 1.Nanomagnetism and spintronics a.bit patterned magnetic recording media/head for ultra-high density magnetic recording b.Patterned nanostrucutures for magnetoplasmonic sensors c. STT/SOT MRAM fabrication technologyd.Synchrotron based x-ray such as STXM and XMCD_PEEM, and electron based magnetic imaging and magnetization reversal 2.Micro and nano-fabrication technologya. Methodology of semiconductor micro and nanofabrication such as Electron beam,laser, ultra violet and nanoimprint lithographys as well as DNA building block self assembly and patten transfer/dry etching technology with RIE/IBEb. Interface tuned multi field coupled functional devices arraysc. Two dimensional interface induced multi functional devices arrays

Group leader of Multi-functional devices by interface control and nanoengineeringMy research activity includes following points: 1.Nanomagnetism and spintronics a.Low dimensional magnetic nanocrystalline materials and bit patterned magnetic recording media for ultra-high density magnetic recording b.Correlation between the microstructure and magnetic properties in hard magnetic thin film materials for magnetic head c.Magnetostric/ferroelectric ultra-thin film composites and devices (magnetic sensor an energy harvester and so on) d.Synchrotron based x-ray magnetic imaging and magnetization reversal 2.Micro and nano-fabrication technologya.Methodology of semiconductor micro and nanofabrication for graphene devices b.Electron beam, laser, ultra violet and nanoimprint lithographys for device fabricationc.Three dimensional functionaldevices based on lithography and template assisted self-assembly 3. Graphene based organic electronics a. Strain induced periodic ribbons in single layer of graphene b. super-resolution image in CuPc molecules on dolomite surface by environmental AFM c. Manipulating CuPc molecule nanowires by AFM tip for molecule based nano-device on graphene d. Novel concepts for small molecule photodetectors based on graphene thin layers

1. Ferromagnetic/ferroelectric coupled composites and devicesa. Magnetostric/ferroelectric ultra-thin film composites and devices (magnetic sensor an energyharvester and so on) b. Ferromagnet/muiltiferroics ultra-thin film composites and devices (MRAMand MERAM) c. Microstructure and magneto-electric coupling effect in FM/FE nanocomposites 2.Micro and nano-fabrication technology a. Methodology of semiconductor micro and nanofabrication b. Electron beam, laser, ultra violet and nanoimprint lithographys for device fabrication c. 3D functionaldevices based on lithography and template assisted self-assembly

Magnetic switching behaviors of patterned bit media fabricated by laser & extreme ultraviolet interference and electron beam lithography. Involved in EU project “Magnetic films on nanospheres”, focusing on template assisted self-assembly of monodisperse nanoparticles by combining pre-patterning and functionalization of the particle/surface interaction for ultra-high density mgnetic recording media. Advanced magnetic characteration by SQUID, VSM, Nano-MOKE, MFM and X-ray microscopy such as Scanning Transimission X-ray Microscopy, Transimission X-ray Microscopy and X-ray Magnetic Circular Dicroism Photoelectron Emission Microscopy in Swiss LightSource, Paul Scherrer Institut, Switzerland.

Tuning perpendicular magnetic anisotropy in FeCo magnetic thin films through interface/surface modification or stress induced structure distortion for ultra-high density magnetic storage media. Correlation between the growth, structure (AES, XPS, LEED, HREED, STM) and magnetism of Co and Fe ultra-thin film nanostructures (MOKE, SQUID, and XMCD-PEEM) by molecular beam epitaxial (MBE) and pulsed laser deposition (PLD) in UHV chamber.