JianPing Wang
Associate Professor

B.S., 1989, Physics, Lanzhou University, China
M.S., 1992, Institute of Magnetic Materials, Lanzhou University, China
Ph.D., 1995, Institute of Physics, Chinese Academy of Sciences

Telephone: 612-625-9509
E-mail: jpwang@ece.umn.edu
Web Page: http://www.ece.umn.edu/users/jpwang/


My research involves the searching, fundamentally understanding and fabrication of novel nanoscale magnetic and spintronic materials and devices by combining cutting edge nanotechnology with frontier knowledge from different disciplines.

A variety of novel magnetic media (ECC media, heat assisted magnetic media and patterned media) to support recording areal density from 1 terabit/in2 up to several tens terabit/in2 are being explored experimentally in my group.

Magnetic materials with high magnetic anisotropy, high magnetic moment and new features are being investigated experimentally based on novel nano fabrication techniques developed in my group. An example of my work is the deposition and 2D/3D assembly of heterostructured (e.g. core-shell) magnetic nanoparticles with long-range order by nanoparticles beam deposition techniques. The heterostrucutred nanoparticles, nanoparticle-crystals, nanoparticles assembled films and patterned arrays are being investigated for their applications in patterned media and biomedical magnetic devices.

The Spintronic Materials and Devices work involves exploring and deposition of new spintronic materials and integrating them into novel spintronic devices to investigate fundamentally their spin dependent transport behavior and spin momentum transfer behavior for magnetic logic devices, magnetic memory and other new applications. A nanopatterning process for fabricating sub 100 nm spintronic devices has been developed as a base for this research by my group.


Selected Publications

"Exchange Coupled Composite Media for Perpendicular Magnetic Recording", (Invited), IEEE Transactions on Magnetics, 41, 3181 (2005), J. P. Wang, W. K. Shen and J. M. Bai

"Toward the Direct Deposition of L10 FePt Nanoparticles", Journal of Applied Physics. 97, 10J319 (2005), J. M. Qiu, J. Judy, D. Weller and J. P. Wang (Selected by Virtual Journal of Nano Science and Technology, June, 2005)

"High-magnetic-moment Core-shell-type FeCo-Au/Ag Nanoparticles", Applied Physics Letters, 87, 152502 (2005), J. M. Bai and J. P. Wang

"Spin Transfer Effect in Magnetic Tunnel Junctions with a Nano-Current-Channel Layer in Free Layer", IEEE Transactions on Magnetics 41, 2612 (2005), H. Meng and J. P. Wang

"Programmable Spintronic Logic Device with Full Functions", Journal of Applied Physics 97, 10D509 (2005), J. Wang, H. Meng and J. P. Wang, (Selected by Virtual Journal of Nano Science and Technology, June, 2005)

"A Spintronics Full Adder for Magnetic CPU", IEEE Electron Device Letters, 26, 360 (2005), H. Meng, J. Wang, and J. P. Wang

"Magnetic Read Sensor with Perpendicular Anisotropy", (Invited), Transactions on Magnetics, 41, 707 (2005), Y.F. Ding, J. Judy and J. P. Wang

"In situ epitaxial growth of ordered FePt (001) films with ultra small and uniform grain size using a RuAl underlayer", Journal of Applied Physics, 97, 10H301 (2005), W. K. Shen, J. H. Judy, and J. P. Wang