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John Q. Xiao
UNIDEL Professor & Director
Contact Info
230 Sharp Lab
(302) 831-6547

Research Projects
Spin-polarized transport and high frequency dynamics in spintronic devices
Magnetism in various types of structures
High frequency soft magnetic materials
Metamaterials including magnetodielectric materials and artificial band-gap materials
Synthesis, characterization, and applications of nanostructured materials

Current Research

Notable Publications
T. Moriyama, R. Cao, X. Fan, G. Xuan, B. K. Nikolic, Y. Tserkovnyak, J. Kolodzey, and J. Q. Xiao, "Tunnel barrier enhanced voltage signal generated by magnetization precession of a single ferromagnetic layer", Phys. Rev. Lett. 100, 067602 (2008).
H. Zhu, J. Han, John Q. Xiao, and Y. Jin, "Uptake, translocation, and accumulation of manufactured iron oxide nanoparticles by pumpkin plants", J. of Environmental Monitor. 10, 713 (2008).
W.G. Wang, C. Ni, A. Rumaiz, Y. Wang, Y. Fan, T. Moriyama, R. Cao, Q.Y. Wen, H. Zhang, and J. Q. Xiao, "Real-time evolution of tunneling magnetoresistance during annealing in CoFeB/MgO/CoFeB magnetic tunnel junctions", Appl. Phys. Lett. 92, 152501 (2008).
T. Moriyama, R. Cao, J. Q. Xiao, J. Lu, X.R. Wang, Q. Wen, and H.W. Zhang, "Microwave-assisted magnetization switching of Ni80Fe20 in magnetic tunnel junctions", Appl. Phys. Lett. 90, 152503 (2007).
Z. H. Liu, H. Liu, X. X. Zhang, X. K. Zhang, J. Q. Xiao, Z. Y. Zhu, X. F. Dai, G. D. Liu, J. L. Chen, and G. H. Wu, "Large negative magnetoresistance in quaternary Heusler alloy Ni50Mn8Fe17Ga25 melt-spun ribbons", Appl. Phys. Letts. 86, 182507 (2005).
X. F. Dai, G. D. Liu, Z. H. Liu, G. H. Wu, J. L. Chen, F. B. Meng, H. Y. Liu, L. Q. Yan, J. P. Qu, Y. X. Li, W. G. Wang, and J. Q. Xiao, "Superelasticity of CoNiGa: Fe single crystals”, Appl. Phys. Lett. 87, 112504 (2005).
Y. Zhao, Y. Zhang, H. Zhu, G. C. Hadjipanayis, and J. Q. Xiao, "Low-Temperature synthesis of hexagonal (Wurtzite) ZnS nanocrystals”, J. Am. Chem. Soc. 126, 6874 (2004).
Y. Zhao, X. Zhang, and J. Q. Xiao, "Submicron laminated Fe/SiO2 soft magnetic composites-an effective route to achieve materials for high frequency applications", Adv. Materials. 17, 915 (2005).