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Contact information
University of Idaho
Department of Physics
rm EP 321
Moscow, ID 83844-0903
Tel: 208.885.7558
Fax: 208.885.4055
Email: youqiang@uidaho.edu
web page: www.phys.uidaho.edu/you_qiang
Teaching
Physics 213 Spring 2007
Physics 212 Fall 2007
Research Interests
One goal of modern condensed-matter science is to use constituents (mainly atoms and molecules) as the elementary bricks to build new materials. In this context, the field of clusters that concerns the aggregates of a few atoms to thousands of atoms (diameters between 1-100 nm) appears especially fascinating, since these systems are intermediate between of small molecules and bulk solids. On a fundamental level, they offer the opportunity to understand more precisely how atomic structure can lead to physical and chemical properties of macroscopic phases. Moreover, it is possible to produce in the form of clusters some atomic arrangements that do not normally exist in nature and may consequently exhibit specific properties that are not due only to the large number of surface atoms.
My research group can produce monodispersive nanoclusters with size range from 1 nm to 100 nm by our newly developed Sputtering-Gas-Aggregation (SGA) source. The unprecedented ability to assemble nanoclusters into new materials with unique or improved properties is thus creating a revolution in our ability to engineer condensed matter for desired utilization. These nanophase materials, assembled using nanoclusters as building blocks, can be synthesized to have a wide variety of controlled optical, electronic, magnetic, mechanical and chemical properties with attendant useful technological applications.
My research interests mainly include two areas: (1) Nanomagnetism of clusters and cluster-assembled materials for biomedical and environmental applications, and (2) Magneto-optical properties of ZnO based spintronic nanoclusters.
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Publications
Since coming to UI:
Papers (referred journals):
- R. Skomski, A. Kashyap, Y. Qiang, and D. Sellmyer, "Exchange through Nonmagnetic Insulating Matrix", J. of Applied Physics, 93, 10(2003) 6477.
- Y. Xu, Z. Sun, Y. Qiang, and D. Sellmyer, "Magnetic Properties of L10-FePt and FePt:Ag Nanocluster Films", J. of Applied Physics, 93, 10 (2003) 8289.
- Y. Xu, Z.G. Sun, Y. Qiang and D.J. Sellmyer, “Preparation and Magnetic Properties of CoPt and CoPt:Ag Nanocluster Films”, J. of Magnetism and Magnetic Materials, 266 (2003)164-170.
- Y. Qiang, J. Antony, M. G. Marino, and S. Pendyala, “Synthesis of Core-Shell nanoclusters with High Magnetic Moment for Biomedical Applications”, IEEE Transactions on Magnetics, 40 (2004) 6, 3538-3540.
- J. Antony, X.B. Chen, J. Morrison, L. Bergman, Y. Qiang, D.E. McCready, and M. Engelhard, “ZnO nanoclusters: Synthesis and Photoluminescence”, Appl. Phys. Letters, 87, 241917 (2005).
- J. Antony, S. Pendyala, A. Sharma, X.B. Chen, J. Morrison, L. Bergman, Y. Qiang, “Room temperature ferromagnetic and UV optical properties of Co-doped ZnO nanocluster films”, J. of Appl. Phys. 97, 10D307 (2005).
- You Qiang, Jiji Antony, Amit Sharma, Sweta Pendyala, Joe Nutting, Daniel Sikes and Daniel Meyer, “Iron/Iron Oxide Core-Shell Nanoclusters for Biomedical Applications”, J. of Nanoparticle Research, 8 (2006) 489.
- C. M. Wang, D. R. Baer, L. E. Thomas, J. E. Amonette, Jiji Anthony, You Qiang, and G. Duscher, “Observations of Cation Diffusion and Void Formation during Early Stages of Passivation: Initial Oxidation of Iron Nanoparticles at Room Temperature”, J. of Applied Physics, 98, 094308, 2005.
- Jiji Antony, You Qiang, Donald R. Baer and Chongmin Wang, “Synthesis and Characterization of Stable Iron-Iron Oxide Core-Shell Nanoclusters for Environmental Applications”, J. of Nanoscience and Nanotechnology, 6, 568-572 (2006).
- Leslie L. Muldoon, Paul Tratnyek, Paula M. Jacobs, Nancy D. Doolittle, Gregory A. Christoforidis, Joseph Frank, Manfred Lindau, Paul R. Lockman, Sandor Manninger, You Qiang, Alexander M. Spence, Samuel I. Stupp, Miqin Zhang, Edward A. Neuwelt, “Imaging and nanomedicine for diagnosis and therapy in the CNS: Report of the eleventh annual blood-brain barrier disruption consortium meeting”, American Journal of Neuroradiology, 27:715-721, March 2006.
- Joseph Nutting, Jiji Antony, Daniel Meyer, Amit Sharma, and You Qiang, "The effect of particle size distribution on the usage of the AC susceptibility in biosensors", Journal of Applied Physics, 99, 08B319 (2006)
- Jiji Antony, Joseph Nutting, D. Baer, Daniel Meyer, Amit Sharma, and You Qiang, “Size dependent specific surface area of nanoporous films assembled by core-shell iron nanoclusters”, J. of Nanomaterials, 12 (2006) 54961.
- Jiji Antony, Sweta Pendyala, David E McCready, Mark H Engelhard, Daniel Meyer, Amit Sharma and You Qiang, “Ferromagnetism in Ti-Doped ZnO Nanoclusters above Room Temperature”, IEEE Transactions on Magnetics, 42 (2006) 2697
- Amit Sharma, You Qiang, Pawel Karnacki, Andrzej Paszczynski, Daniel Meyer, Joseph Nutting, and Jiji Antony, “Dramatic increase in stability and longevity of enzymes attached to monodispersive iron nanoparticles”, IEEE Transactions on Magnetics, 43 (2007) 2418
- Daniel Meyer, Mohammad Faheem, Michael Campanell, Jiji Antony, Amit Sharma, and You Qiang, “Magnetic Nanocrystalline Films Softened by Obliquely Accelerating Iron Nanoclusters”, IEEE Transactions on Magnetics, 43 (2007) 3010.
- Jiji Antony, You Qiang, Faheem Muhammad, Daniel Meyer, David E. McCready, and Mark H. Engelhard “Ferromagnetic semiconductor nanoclusters: Co-doped Cu2O”, Appl. Phys. Letters, 90, (2007) 013106 .
- Jiji Antony, You Qiang, “Cathodoluminescence from a device of carbon nanotube-field emission display with ZnO nanocluster phosphor”, Nanotechnology 18 (2007) 295703.
- C. M. Wang, D. R. Baer, J. E. Amonette, M. H. Engelhard, Y. Qiang , and J. Antony, “Morphology and Oxide Shell Structure of Iron Nanoparticles Grown by Sputter-Gas-Aggregation”, Nanotechnology, 18(2007)255603.
Book Chapters:
1. You Qiang, Jiji Antony, Ch. Kakaraparthi, and S. Pendyala, “Ultrahigh Magnetic Moments of Core-Shell nanoclusters for Biomedical Application”, in the book of “Clusters and Nano-Assemblies: physical and biological systems”, edited by P. Jena, S.N. Khanna and B.K. Rao, World Scientific, 2005.
2. D. Baer, PG Tratnyek, Y Qiang, JE Amonette, et. al, "Synthesis, characterization and properties of zero valent iron nanoparticles", in "Environmental Application of Nanomaterials: Synthesis, Sorbents, and Sensors", eddited by G. Fryxell and GZ Cao, London: Imperial College Press, pp 49-86, 2007.
In press:
1. C. M. Wang, D. R. Baer, J. E. Amonette, M. H. Engelhard, M. J. Antony, Y. Qiang, and J. Cazaux, “Electron Beam Induced Thickening of the Protective Oxide Layer around Fe Nanoparticles”, Ultramicroscopy, 2007, in press.
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