Dana STANESCU

Fonction

Ingénieur – Chercheur CEA

Responsable AO-MBE

Activité scientifique

Compétences techniques

• Dépôt par voie chimique des films d’oxides (ACG)
• Mesures photo-électrochimique – Spectroscopie d’impédance (PEC-IS)
• Nanostructuration des films minces par lithographie optique et électronique
• Croissance des couches minces d’oxydes par épitaxie moléculaire assistée par plasma d’oxygène atomique (AO-MBE)
• Caractérisation de la croissance par RHEED, spectroscopie Auger, XPS.

CV

Publications scientifiques

1. Scanning transmission X-ray spectromicroscopy: a nanotool to probe hematite nanorods for solar water splitting, Stefan Stanescu, Dana Stanescu, Adam Hitchcock
   • preprint March 2023 https://chemrxiv.org/engage/chemrxiv/articledetails/640de8d7b5d5dbe9e825c049;
   • Journal of Electron Spectroscopy and Related Phenomena 265 (2023) 147334, https://doi.org/10.1016/j.elspec.2023.147334
2. Enhancement of the Solar Water Splitting Efficiency Mediated by Surface Segregation in Ti-doped Hematite Nanorods, Stanescu S, Alun T, Dappe YJ, Ihiawakrim D, Ersen O, Stanescu D.
   • preprint February 2023 https://chemrxiv.org/engage/chemrxiv/article-details/643c03bc73c6563f14fae441
   • ACS Appl. Mater. Interfaces 2023, https://doi.org/10.1021/acsami.3c02131
3. Characterizing surface states in hematite nanorod photoanodes, both beneficial and detrimental to solar water splitting efficiency, Dana Stanescu, Mekan Piriyev, Victoria Villard, Cristian Mocuta, Adrien Besson, Dris Ihiawakrim, Ovidiu Ersen, Jocelyne Leroy, Sorin G. Chiuzbaian, Adam P. Hitchcock, Stefan Stanescu, J. Mater. Chem. A, 2020, 8, 20513-20530, https://doi.org/10.1039/D0TA06524B; hal-02934466
4. Tuning the Charge Carriers Migration in Epitaxial BaTiO3 Thin-Film Photoanodes, H. Magnan, P.M. Deleuze, J. Brehin, T. Plays, D. Stanescu, W.R. Flavel, M.G. Silly, B. Domenichini, A. Barbier, J. Phys. Chem. C 2020, 124, 19, 10315–10323, https://doi.org/10.1021/acs.jpcc.0c01361
5. Mn0.7Fe2.3O4 Nanoplatelets Embedded in BaTiO3 Perovskite Thin Films for Multifunctional Composite Barriers, Phuong-Linh Nguyen, Brice Sarpi, Federico Petronio, Cristian Mocuta, Philippe Ohresser, Dana Stanescu, Jean-Baptiste Moussy, Alina Vlad, Andrea Resta, Edwige Otero, Rachid Belkhou, Jocelyne Leroy, Nathalie Jedrecy, Helene Magnan, Antoine Barbier, ACS Applied Nano Materials 2020, 3, 1, 327–341, https://doi.org/10.1021/acsanm.9b01970 ; cea-02403670
6. Electrostriction, Electroresistance and Electromigration in Epitaxial BaTiO3 – Based Heterostructures: Role of Interfaces and Electric Poling, Dana Stanescu, Helene Magnan, Brice Sarpi, Maxime Rioult, Thomas Aghavnian, Jean-Baptiste Moussy, Cindy L. Rountree, Antoine Barbier, , ACS Applied Nano Materials 2019, 2, 6, 3556-3569, https://doi.org/10.1021/acsanm.9b00517 / hal-02136024
7. Oxygen incorporated during deposition determines the crystallinity of magnetron-sputtered Ta3N5 films, M. Rudolph, I. Vickridge, E. Foy, J. Alvarez, J.-P. Kleider, D. Stanescu, H. Magnan, N. Herlin-Boime, B. Bouchet-Fabre, T. Minea, M.-C. Hugon, Thin Solid Films, 685 (2019) 204-209, https://doi.org/10.1016/j.tsf.2019.06.031
8. Epitaxial TiO2 Thin Film Photoanodes: Influence of Crystallographic Structure and Substrate Nature, H. Magnan, D. Stanescu, M. Rioult, E. Fonda, A. Barbier, J. Phys. Chem. C, 2019, 123, 5240−5248, https://doi.org/10.1021/acs.jpcc.8b11479
9. Cross-Correlation between Strain, Ferroelectricity, and Ferromagnetism in Epitaxial Multiferroic CoFe2O4/BaTiO3 Heterostructures, N. Jedrecy, T. Aghavnian, J-B. Moussy, H. Magnan, D. Stanescu, X. Portier, M-A. Arrio, C. Mocuta, A. Vlad, R. Belkhou, P. Ohresser, A. Barbier, ACS Appl. Mater. Interfaces, 2018, 10 (33), pp 28003–28014, https://doi.org/10.1021/acsami.8b09499
10. Resonant PhotoEmission Spectroscopy Investigation of Fe2O3 – TiO2 Heterojunctions for Solar Water Splitting, M. Rioult, D. Stanescu, P. Le Fèvre, A. Barbier, H. Magnan, Physics Procedia 85 (2016) 4 – 11, https://doi.org/1016/j.phpro.2016.11.074
11. High visible light photocatalytic activity of nitrogen-doped ZnO thin films deposited by HiPIMS, V. Tiron, I-L. Velicu, D. Stanescu, H. Magnan, L. Sirghi, Surface & Coatings Technology 324 (2017) 594-600, https://doi.org/10.1016/j.surfcoat.2016.087
12. Visible-light photocatalytic activity of TiOxNy thin films obtained by reactive multi-pulse High Power Impulse Magnetron Sputtering, A. Demeter, F. Samoila, V. Tiron, D. Stanescu, H. Magnan, M. Straticiuc, I. Burducea, L. Sirghi, Surface & Coatings Technology 324 (2017) 614-619, https://doi.org/1016/j.surfcoat.2016.10.011
13. The role of oxygen in magnetron-sputtered Ta3N5 thin films for the photoelectrolysis of water, M. Rudolph, D. Stanescu, J. Alvarez, E. Foy, J.-P. Kleider, H. Magnan, T. Minea, N. Herlin-Boime, B. Bouchet-Fabre, M.-C. Hugon, Surface & Coatings Technology 324 (2017) 620-625, https://doi.org/10.1016/j.surfcoat.2016.09.007
14. Manipulating the ferroelectric polarization state of BaTiO3 thin films, Datta S., Rioult M., Stanescu D., Magnan H., Barbier A., Thin Solid Films 607 (2016) 7-13, https://doi.org/10.1016/j.tsf.2016.03.059
15. Oxygen Vacancies Engineering of Iron Oxides Films for Solar Water Splitting, Rioult M., Stanescu D., Fonda E., Barbier A., Magnan H., J. Phys. Chem. C, 120 (14), pp 7482–7490 (2016)
16. Tailoring the photocurrent in BaTiO3/Nb:SrTiO3 photoanodes by controlled ferroelectric polarization, Rioult M., Datta S., Stanescu D., Stanescu S., Belkhou R., Maccherozzi F., Magnan H., Barbier A., Applied Physics Letters, 107, 103901 (2015)
17. Determination of the cation site distribution of the spinel in multiferroic CoFe2O4 / BaTiO3 layers by X-ray photoelectron spectroscopy, Aghavnian T., Moussy J.-B., Stanescu D., Belkhou R., Jedrecy N., Magnan H., Ohresser P., Arrio M.-A., Sainctavit Ph., Barbier A., Journal of Electron Spectroscopy and Related Phenomena, 202 16-21 (2015)
18. Local Electronic Structure and Photo-Electrochemical Activity of Partial Chemically Etched Ti-Doped Hematite, Rioult M., Belkhou R., Magnan H., Stanescu D., Stanescu S., Maccherozzi F., Rountree C., Barbier A., Surface Science 641, 301-313 (2015)
19. Antiferromagnetic long range spin ordering in Fe and NiFe2 doped BaTiO3 multiferroic layers, Barbier A., Aghavnian T., Badjeck V., Mocuta C., Stanescu D., Magnan H., Rountree C. L., Belkhou R., Ohresser P., Jedrecy N., Physical Review B 91, 035417 (2015)
20. Single Crystalline Hematite films for Solar Water Splitting: Ti Doping and Thickness Effects, Rioult M., Magnan H., Stanescu D., Barbier A., J. Phys. Chem. C, 118 (6), 3007–3014 (2014)
21. Strong magnetoelectric coupling in multiferroic Co/BaTiO3 thin films, Jedrecy, N., Bardeleben H. J., Badjeck V., Demaille D., Stanescu D., Magnan H., Barbier A., Physical Review B, 88, 121409 (2013)
22. Surface composition of BaTiO3 /SrTiO3(001) films grown by atomic oxygen plasma assisted molecular beam epitaxy, Barbier A., Mocuta C., Stanescu D., Jegou P., Jedrecy N., Magnan H., Journal of Applied Physics, 112, 114116 (2012)
23. Enhanced photoanode properties of epitaxial Ti doped α-Fe2O3 (0001) thin films, Magnan H., Stanescu D., Rioult M., Fonda E., Barbier A., Applied Physics Letters, 101, 133908 (2012)
24. Beyond the Magnetic Domain Matching in Magnetic Exchange Coupling, Magnan H., Bezencenet O., Stanescu D., Belkhou R., Barbier A., Physical Review Letters, 105, 9, 097204 (2010)
25. Crauste O., Marrache-Kikuchi C.A., Berge L., Stanescu D., Dumoulin L., “Thickness dependence of the superconductivity in thin disordered NbSi films”, Journal of Physics: Conference Series, 150, 042019 (2009)
26. Jaworowicz J., Vernier N., Ferre J., Maziewski A., Stanescu D., Ravelosona D., Jacqueline A. S., Chappert C., Rodmacq B., Dieny B., “Magnetic logic using nanowires with perpendicular anisotropy” , Nanotechnology, 20, 21, 215401 (2009)
27. Prele D., Piat M., Breelle E., Voisin F., Geoffray H., Marnieros S., Dumoulin L., Stanescu D., Atik Y., Evesque C., Leriche B., Pajot F., Belier B., “Superconducting Niobium/Silicon Bolometer Developments in the DCMB French Collaboration”, EAS Publications Series: Astrophysics detector workshop 2008, 37, 107-117 (2009)
28. Stanescu D., Ravelosona D., Mathet V., Chappert C., Samson Y., Beigne C., Vernier N., Ferre J., Gierak J., Bouhris E., Fullerton E. E., “Tailoring magnetism in CoNi films with perpendicular anisotropy by ion irradiation”, Journal of Applied Physics, 103, 7, 07B529 (2008)
29. Piat M., Atik Y, Belier B., Benoit A., Berge L., Bounab A., Breelle E., Camus P., Collin S., Desert F.X., Dumoulin L., Evesque C., Geoffray H., Giard M., Hoffmann C., Jin Y., Klisnick G., Marnieros S., Monfardini A., Pajot F., Prele D., Redon M., Santos D., Stanescu D., Sou G., Voisin F. “Bolometer arrays development in the DCMB French collaboration – art. no. 70200G”, Millimeter and submillimeter detectors and instrumentation for astronomy IV, Book Series: Proceedings on the Society of Photo-optical Instrumentation Engineers (SPIE), 7020, G200 (2008)
30. Stanescu D., Xavier P., Richard J., Dubourdieu C., “Evidence of the magnetoimpedance effect up to microwave frequencies in polycrystalline La0.7Sr0.3MnO3 films”, Journal of Applied Physics, 99, 7, 073707 (2006)
31. Korn T., Kerekes M., Ebels U., Stanescu D., Xavier P., “Pumping-field-induced dynamic effects in micron-sized permalloy lines and their influence on HF filter applications”, IEEE Transaction on Magnetics, 41, 10, 3514-3516 (2005)
32. Kerekes M., Viegas A.D.C., Stanescu D., Ebels U., Xavier P., Dornelles L.S., Sommer R.L., “Domain wall propagation in continuous thin films initiated by precessional reversal”, Journal of Magnetism and Magnetic Materials, 286, 51-55 (2005)
33. Stanescu D., Viegas A., Kerekes M., Rodmacq B., Ebels U., Xavier P., Fournier T., Muller S., Ounadjela K., “Local precessional reversal of a spin-valve element”, Journal of Magnetism and Magnetic Materials, 272, 1883-1884 (2004)
34. Korn, T., Kerekes M., Stanescu D., Xavier P., Ebels U., Nonlinear dynamic effects in micron-sized Permalloy lines and their influence on HF filter applications, INTERMAG Asia 2005: Digest of the IEEE International Magnetics Conference (IEEE Cat. No.05CH37655), pages: 2069-70 (2005)
35. Kerekes M., Viegas, A.D.C., Stanescu D., Ebels U., Xavier P., Suran G., “Frequency domain studies of CoZr continuous thin films and FeNi wires using coplanar transmission lines”, Journal of Applied Physics, 95, 11, 6616-6618 (2004)
36. Sousa R.C., Prejbeanu I.L., Stanescu D., Rodmacq B., Redon O., Dieny B., Wang J.G., Freitas P.P., “Tunneling hot spots and heating in magnetic tunnel junctions”, Journal of Applied Physics, 95, 11, 6783-6785 (2004)

Brevet:

Dieny, B., R.C. Sousa and D. Stanescu, “Magnetic tunnel junction device and writing/reading for said device”, FR20030011897, Oct. 10 2003

Enseignement

2004 – 2005 : niveau licence, BTS, licence professionnelle et formation continue, Université Joseph Fourier – IUT1 Grenoble, France

• Travaux dirigés sur «Les fondements de la théorie de la transmission de l’information »
• Cours sur « Mémoires Magnétiques »
• Travaux dirigées de physique et mathématique appliquée