17 (1)(2)For M2 << M1a) b)Fig 3. RBS spectra of the specimen 1, measured with: a) a 4He beam (E = 3.065 MeV); b) a 10B beam (E = 8 MeV)excellent elemental resolution
18 In Fig. 3a a NRA spectrum of the specimen 1, measured with a 4He beam (E = 3.065 MeV) is presented.An enhanced O peak at channel 160 is due to the oxygen contained in the PZT film. The result of a simulation using the RUMP code is presented with continuous line. The simulated and experimental curves show good agreement.The compositions and thicknesses of layers found in specimen 1 are the following:- PZT layer (composition: Pb0.78Zr0.25Ti0.50O3; thickness: 1340 at/cm2)- interfacial layer 1 (composition: Ti0.02O0.1Pt0.5; thickness: 870 at/cm2)- interfacial layer 2 (composition: TiO2; thickness: 45 at/cm2)- interfacial layer 3 (composition: SiO2; thickness: 3850 at/cm2)(1)(2)For M2 << M1excellent elemental resolution
20 Responsabil proiect: Dr. Dan Pantelica; Activitatea de caracterizare a straturilor subtiri utilizind metode IBA s-a concretizat atit in participari la proiecte PNCDI cat si in participari la colaborari internationale:Contract CERES 88 “Cercetari interdisciplinare folosind fascicule de particuleaccelerate”Responsabil proiect: Dr. Dan Pantelica;Colaborare cu INCDFM, subcontract CERES 10/2001 “Caracterizarea microstructuralaavansata si prepararea unor straturi feroelectrice PZT cu orientari cristalograficeselectate”Responsabil proiect din partea IFIN-HH: Dr Dan Pantelica;Colaborare cu INCDFM, subcontract CERES 8/2001 “Structuri cuanticesemiconductoare”Responsabil proiect din partea IFIN-HH: Dr.Dan Pantelica;Colaborare cu INCDFM, subcontract CERES 15/2001 “Efecte cuantice de interfata innanostructuri metal/C60”Responsabil proiect din partea IFIN-HH: Dr. Dan Pantelica;Colaborarea cu CSNSM-Orsay (Franta) “Characterization of nuclear ceramicsusing Ion Beam Analysis Techniques”;WP8 „Characterization of surface layers of materials using RBS and ERDA techniques”in cadrul Centrului de Excelenta IDRANAP al EU (FP5).(1)(2)For M2 << M1excellent elemental resolution
21 Lucrari recente, contributii la conferinte: M.Balaceanu, E.Grigore, F.Truica-Marasescu, D.Pantelica, F.Negoita, G.Pavelescu,F.Ionescu,Deposition of amorphous hydrogenated carbon nitride films by hollow cathode dischargeprocess,Romanian Reports in Physics, Vol.51, Nos , P. 781–788, 1999.2. M.Balaceanu,E.Grigore, F.Truica-Marasescu, D.Pantelica, F.Negoita, G.Pavelescu,Characterization of carbon nitride films deposited by hollow cathode discharge process.Prezentata la IBA–14 International Conference on Ion Beam Analysis, 26–30 Iulie 1999Dresden, Germany.Nucl. Instrum. and Meth. in Physics Research B161–163 (2000) 1002–1006.3. A. Crunteanu, M.Charbonnier, M.Romand, F.Vasiliu, D.Pantelica, F.Negoita,R..Alexandrescu,Synthesis and characterization of carbon nitride thin films obtained by laserinduced chemical vapor deposition.Prezentata la E-MRS (European-Materials Research Society) 1999 Spring MeetingStrasbourg, France, June 1-4, 1999.Surface and Coating Technology 125 (2000) 301–307.4. A. Crunteanu,M.Charbonnier,M.Romand,J.Mugnier,R.Alexandrescu,F.Negoita,D.Pantelica,Structural and vibrational characterization of hydrogenated carbon nitride thin films obtainedby laser–induced CVD.Prezentata la E-MRS (European-Materials Research Society) 2000 Conference, Strasbourg,France, May 31-June 2, 2000Applied Surface Science (2000) 1– 4.(1)(2)For M2 << M1excellent elemental resolution
22 5. R.V.Ghita, D.Pantelica, F.Negoita, S.Lazanu Characterization of anodic oxide for GaAs based laser diodes,Prezentata la ROMOPTO 2000: Sixth Conference on Optics, Bucharest, Romania,September 4-7, 2000Proceedings of SPIE 4430,736 (2001).6. A.Goldemblum, V.Teodorescu, F.Wagner, R.Manaila, G.Filoti, J.Deville,D.Pantelica, F.Negoita, A.Belu-Marian, N.Scintee,Structural properties of sputtered ZnO: Au films,Philosophical Magazine A82,193(2002).7. M.F.Lazarescu, D.Pantelica, A.S.Manea, R.V.Ghita, F.NegoitaInvestigation of semi-insulating oxygen-doped GaAs,Prezentata la Thirteenth International Conference on Crystal Growth (ICCG-13) inconjunction with The Eleventh International Conference on Vapor Growth and Epitaxy(ICVGE-11), Doshisha University, Kyoto, Japan, 30 July-4 August, 2001Journal of Crystal Growth 240,401 (2002).8. E.A.Preoteasa, C.Ciortea, B.Constantinescu, D.Fluerasu, S.-E.Enescu,D.Pantelica, F.Negoita, E.PreoteasaAnalysis of composites for restorative dentistry by PIXE, XRF and ERDA,Prezentata la The Ninth International Conference on Particle-Induced X-ray Emission(PIXE) and its Analytical Applications, Guelph, Canada, June 8-12, 2001Nuclear Instruments and Methods in Physics Research B 189,426(2002).9. L.E.Dinca, L.Gheorghe, A.Lupei, D.Pantelica, N.ScinteeGrowth, RBS-ERDA characterization and modelling in Nd3+-doped calcium-lithium-niobium-gallium garnett (CLNGG:Nd) crystal,Nuclear Instruments and Methods in Physics Research A 486, 93 (2002).(1)(2)For M2 << M1excellent elemental resolution
23 Journal of Optoelectronics and Advanced Materials, 4,107 (2002). 10. M.Balaceanu, M.Braic, D.Macovei, M.J.Genet, A.Manea, D.Pantelica, V.Braic,F.NegoitaProperties of titanium based hard coatings deposited by cathodic arc methodJournal of Optoelectronics and Advanced Materials, 4,107 (2002).11. D.Pantelica, L.Thomé, S.E.Enescu, F.Negoita, P.Ionescu, I.Stefan, A.GentilsIon beam characterization of He implanted into nuclear matricesPrezentata la IBA 16, Albuquerque, New Mexico, USA, June 29-July 4, 2003Nucl. Instr. and Meth., B , 373 (2004).12. D.Pantelica, F.Vasiliu, P.Ionescu, F.NegoitaRBS, ERDA, TEM and SAED characterisation of sol-gel PZT filmsPrezentata la ECAART8 Conference September2004, Paris, FranceAcceptata spre publicare in Nucl. Instr. and Methods in Phys. Res. B.13. D.Pantelica, P.Ionescu, F.Negoita, N.Scintee, L.Thome, S.Enescu, J.JagielskiComplementary use of ERDA and RBS/C for the determination of implanted atom anddamage distribution in spinel.Prezentata la ECAART8 Conference September 2004, Paris, France14. D. Pantelica, M. Petrascu, F. Negoita, N. Scintee, H. Petrascu, A. Isbasescu, I. Stefan,P. IonescuCharacterization of CNx and CNx:H thin layers using ERDA with heavy ionsProceedings of the International Conference on Applications of High Precision Atomicand Nuclear Methods, Neptun, Romania, 2-6 September 2002.15. E. A. Preoteasa, C. Ciortea, D. Fluerasu, D. Pantelica, F. Negoita, L. Haragus, A. Iordan,E. Preoteasa, M. MoldovanPIXE and ERDA analysis of composites for restorative dentistry(1)(2)For M2 << M1excellent elemental resolution
24 Energy calibration. Comparison method. AuCSi4He+ +1670D
25 Simulation of the experimental spectrum (previous measurements: January 2010)
26 The calibration constant obtained from previous measurements July 1975-May 1976; December 1999(*)January 2010; March 2011January 2010 and March 2011K= ± keV·amu/e2·MHz2* K= ± keV·amu/e2·MHz2
27 D. Pantelica4, H.Petrascu4, P. Ionescu4, Cristina Roxana Nita4 Growth and characterisation of SrCuO2 thin filmsC. N. Mihailescu1,3D. Pantelica4, H.Petrascu4, P. Ionescu4, Cristina Roxana Nita4I. Athanasopoulos1, R. Saint-Martin2, A. Revcolevschi2, J. Giapintzakis11 Department of Mechanical and Manufacturing Engineering, University of Cyprus,75 Kallipoleos Av., PO Box 20537, 1678 Nicosia, Cyprus2 LPCES - ICMMO - Bât 410, Université Paris-Sud XI, 15 Georges Clémenceau St.,91405 Orsay Cedex, France3 National Institute for Lasers, Plasma and Radiation Physics, Lasers Department4 Horia Hulubei National Institute for Research and Development inPhysics and Nuclear Engineering
28 Transition metal oxides (TMOs) exhibit a rich variety of novel properties, which can be exploited for a wide range of applications including ultra-high-density magnetic data storage, spintronics, quantum computing and more recently thermal management applications. Thin films of TMOs offer enormous opportunities to explore intriguing physics and also practical applications. The discovery of high Tc superconductivity in cuprates has increased in recent years the interest for low-dimensional Heisenberg magnetic systems.Among these, the compound SrCuO2 (SCO) has drawn much attention. SCO in the orthorhombic structure, consisting of zigzag chains of Cu2+ ions, has been recently shown to exhibit sizeable magnetic heat transport; while SCO in the tetragonal structure exhibits the simplest structure with superconducting CuO2 planes (so called infinite layer compound).Depending on the phase and the orientation, SCO can then be used for different applications. While it has been possible to obtain bulk SCO only in the orthorhombic structure, in the thin film form this compound has only been stabilized in the tetragonal structure.
29 Tetragonal StructureSrCuO2 (SCO) thin films were grown on(100) SrTiO3 and (100) MgO substrates.SrTiO3 substrates were treated with BHF etching to obtain a clean surface with TiO2termination layer.Orthorhombic Structure
30 Using the 3 MV and 9MV Tandems Letter of IntentforUsing the 3 MV and 9MV TandemsApril 14, 2012It is proposed to study the elemental composition depth profile, thickness and lattice defects inthin films of novel materials by ion beam techniques such as Rutherford BackscatteringSpectroscopy (RBS), Elastic Recoil Detection Analysis (ERDA), Nuclear Reaction Analysis(NRA) and Proton Induced X-ray Emission (PIXE), taking advantage of both the existing 9MVTandem and the new 3MV Tandem facilities present at the Horia Hulubei National Institute ofPhysics and Nuclear Engineering. The materials include mainly oxides such as LiCoO2, SrCuO2,La5Ca9Cu24O41, VO2 etc.Ioannis Giapintzakis, ProfessorDirector of Nanotechnology Research UnitDepartment of Mechanical & Manufacturing EngineeringSchool of EngineeringUniversity of Cyprus75 Kallipoleos Av., PO Box 205371678 Nicosia, CyprusTel.:Fax:
31 Letters of Intent INCDFM-Tandem Accelerators Corneliu Ghica (lab. 50)Comparison between quantitative analysis results obtained by analytical techniques in our laboratory (e.g. EDS, EELS) and complementary Ion Beam Analysis techniques:-thin films (mono- or multilayers) and nanopowders with low doping (<1%) or containing low atomic number Z (Z<11) elements;- concentration profiles in the case of thin films.Sergiu Nistor ( lab. 50)Ion beam analysis on:ultrapure Si single crystal (FZ-floating zone) (platelets 20 x 20 x 0.3 mm3 - orientation <100>) implanted with ions 13C and 17O;- cubic boron nitride single crystals (0.4 x 0.4 x 0.2 mm3) for detection of the presence and concentration of natural impurities (Ca, Ba, Si, C) by microPIXE si PIGE techniques.Ion implantation of transition group elements (iron and rare earths) in single crystals and thin films pf boron nitride (cubic and/or hexagonal).
32 Letters of Intent INCDFM-Tandem Accelerators Ovidiu Crisan, (lab. 20) Florin VasiliuIon beam analysis for estimation of nitrogen and boron content in melt spun ribbons(system FePtNbB).Cristian M. Teodorescu (lab. 50)Ion beam analysis of metals deposited on semiconductor wafers at high temperature.Metal: Mn, Fe, Co, Co, Cu, Sm, Gd.Semiconductor: Si(001), Si(111), Ge(001), Ge(111), GaAs(001), rutile TiO2(011).Quantity deposited: nm of equivalent bulk metal. Expected concentrations: 5-50 %.Aim of the study: identification of interface alloys with ferromagnetic properties.Complementary method for composition and concentration profile validation: XPS/AES with depth profiling.Other studies: electron diffraction (LEED, RHEED), angle-resolved ultraviolet photoelectron spectroscopy (ARUPS), yielding experimental band structure, spin-resolved UPS, MOKE, SQUID (collaboration with Lab. 20), STM, HRTEM (collaboration with Lab. 50).
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