Catalin Harnagea

Institut National de la Recherche Scientifique, Varennes, .

E-mail: trimite un mesaj.

Pagina web a instituţiei: http://www.emt.inrs.ca
Pagina web personala: http://www3.sympatico.ca/charnagea/

Nascut(a) in: 1970

Interese: ferroelectric and piezoelectric materials/thin films/nanostructures, size-effects, surface patterning, scanning probe microscopy,

Details:
1.Research interest
-Study of physical processes in semiconductor and ferroelectric systems and their applications in electronic devices and MEMS
-Nanoscience and nanotechnology: Interface- and size-effects on the physical properties
-Scanning Probe Microscopy and its (interdisciplinary) applications
2.Milestones:
-Starting April 2003: Postdoctoral stage at INRS-EMT, University of Quebec
-March 2001�April 2003: Research associate at Max Planck Institute for Microstructure Physics in Halle, Germany.
-Nov. 1997�Nov. 2000: Ph.D student at Max Planck Institute for Microstructure Physics in Halle, Germany.
-1996�1997: Research Assistant at �Alexandru Ioan Cuza� University, Iasi

Publicații selectate:

* C.V. Cojocaru, C. Harnagea, F. Rosei, A. Pignolet, M.A.F.van den Boogaart and J. Brugger, Complex Oxide Nanostructures by Pulsed Laser Deposition through Nanostencils, Applied Physics Letters, 86, 2005.

* M. Alexe, C. Harnagea and D. Hesse, Non-conventional micro- and nanopatterning techniques for electroceramics, Journal of Electroceramics, 12(1-2), 2004.

* C. Harnagea and A. Pignolet, Challenges in the analysis of the piezoelectric response (Chapter 2), Springer - Verlag, A. Gruverman and M. Alexe, Nanoscale characterisation of ferroelectric materials; Scanning probe microscopy approach, 2004.

* C. Harnagea, A. Pignolet, M. Alexe, and D. Hesse, Possibilities and Limitations of Voltage-modulated Scanning Force Microscopy: Resonances in Contact Mode, Integrated Ferroelectrics, 60, 2004.

* I. Szafraniak, C. Harnagea, R.F. Scholz, S. Bhattacharyya, D. Hesse and M. Alexe, Ferroelectric epitaxial nanocrystals obtained by a self-patterning method, Appl. Phys. Lett., 83, 2003.

* W.-H. Ma, C Harnagea, D. Hesse, U. Gösele, Well-ordered arrays of pyramid-shaped ferroelectric BaTiO3 nanostructures, Appl. Phys. Lett., 83, 2003.

* M.-W. Chu, I. Szafraniak, R. Scholz, C. Harnagea, D. Hesse, M. Alexe and U. Gösele, Impact of misfit dislocations on the polarization instability of epitaxial nanostructured ferroelectric perovskites, Nature Materials, 3, 2004.

* L. Mitoseriu, C. Harnagea, P. Nanni, A. Testino, M.T. Buscaglia, V. Buscaglia, M. Viviani, Z. Zhao and M. Nygren, Local switching properties of dense nanocrystalline BaTiO3 ceramics, Appl. Phys. Lett., 84, 2004.

* C. Harnagea, A. Pignolet, M. Alexe, and D. Hesse, Piezoresponse scanning force microscopy: „What quantitative information can we really get out of piezoresponse measurement on ferroelectric thin films”, Integrated Ferroelectrics, 44, 2002.

* C. Harnagea, M. Alexe, D. Hesse, and A. Pignolet, Contact Resonances in Voltage-Modulated Force Microscopy, Appl. Phys. Lett., 83, 2003.

* C. Harnagea, M. Alexe, J. Schilling, J. Choi, R.B. Wehrspohn, D. Hesse and U. Gösele, Mesoscopic ferroelectric cell arrays prepared by imprint lithography, Appl. Phys. Lett., 83, 2003.

* C. Harnagea, A. Pignolet, M. Alexe, D. Hesse, and U. Gösele, Quantitative ferroelectric characterization of single submicron grains in Bi-layered perovskite thin films, Appl. Phys. A: Mater. Sci.& Process, 70, 1999.

* M. Alexe, C. Harnagea, D. Hesse and U. Gösele, Patterning and switching of nano-size ferroelectric memory cells, Appl. Phys. Lett., 75, 1999.

* C. Harnagea, A. Pignolet, M. Alexe, K.M. Satyalakshmi, D. Hesse and U. Gösele, Nanoscale switching and domain structure of ferroelectric BaBi4Ti4O15 thin films, Jpn. J. Appl. Phys., 38, 1999.

* C. Harnagea, Local piezoelectric response and domain structures in ferroelectric thin films investigated by voltage-modulated force microscopy, Ph.D. Thesis, 2001.