Zobrazeno 1 - 9
of 9
pro vyhledávání: '"Laura E. Stoflea"'
Autor:
Cristian M. Teodorescu, Dana G. Popescu, Nicoleta G. Apostol, Ruxandra M. Costescu, Laura E. Stoflea, George A. Lungu
Publikováno v:
Materials, Vol 6, Iss 2, Pp 612-625 (2013)
Ferromagnetic FexGe1−x with x = 2%–9% are obtained by Fe deposition onto Ge(001) at high temperatures (500 °C). Low energy electron diffraction (LEED) investigation evidenced the preservation of the (1 × 1) surface structure of Ge(001) with Fe
Externí odkaz:
https://doaj.org/article/58bb936d22a64beab29e0ed1d26f9c24
Autor:
Florentina Neaţu, Laura E. Stoflea, Ligia Frunza, Madalina Ciobanu, Vasile I. Pârvulescu, Véronique Michelet
Publikováno v:
Catalysis Today. 247:155-162
Rh- m -TPPTC complex was successful immobilized onto a hydrotalcite Zn-Al to convert selectively in aqueous media both the symmetric and nonsymmetric alkynes into functionalized alkenes, with boronic acids. The complex preserved its activity after th
Autor:
Lucian Pintilie, Lucian Trupina, Raluca Negrea, Nicoleta G. Apostol, Cristian M. Teodorescu, Cristina Chirila, Laura E. Stoflea
Publikováno v:
Journal of Materials Science. 49:3337-3351
The band bending at Cu/PZT(001) interfaces is investigated by X-ray photoelectron spectroscopy (XPS) for a PZT(001) layer which exhibits initial outwards ferroelectric polarization. Two competitive processes are identified: (a) formation of the Schot
Publikováno v:
J. Mater. Chem. A. 2:14386-14392
X-ray photoelectron spectroscopy (XPS) analyses of lead zirco-titanate Pb(Zr,Ti)O3(001) single crystal thin layers as a function of the time spent between sample preparation by pulsed laser deposition and introduction in to a ultrahigh vacuum reveale
Autor:
Florin Vasiliu, C. M. Teodorescu, Ioana Cristina Bucur, Nicoleta Răduţoiu, Laura E. Stoflea, Liviu Cristian Tanase, Ionel Mercioniu, Victor Kuncser, G. A. Lungu
Publikováno v:
Materials
Volume 7
Issue 1
Pages 106-129
Materials, Vol 7, Iss 1, Pp 106-129 (2013)
Volume 7
Issue 1
Pages 106-129
Materials, Vol 7, Iss 1, Pp 106-129 (2013)
We report the synthesis of a room temperature ferromagnetic Mn-Ge system obtained by simple deposition of manganese on Ge(001), heated at relatively high temperature (starting with 250 °C). The samples were characterized by low energy electron diffr
Autor:
Lucian Pintilie, Laura E. Stoflea, G. A. Lungu, Nicoleta G. Apostol, Dana G. Popescu, Cristian M. Teodorescu, Cristian A. Tache
Publikováno v:
Materials Science and Engineering: B. 178:1317-1322
This paper analyses in detail the core levels evolution of Pb(Zr,Ti)O 3 , i.e. Pb 4f, Zr 3d, Ti 2p, O 1s in various conditions: absolutely freshly prepared sample, sample stored under air, and the effects of in vacuum annealing. The aim of the study
Autor:
Laura E. Stoflea, G. A. Lungu, Lucian Pintilie, Ligia Frunza, Cristina Chirila, Cristian M. Teodorescu, Liviu Cristian Tanase, Nicoleta G. Apostol
Publikováno v:
Thin Solid Films. 545:13-21
This work presents a systematic investigation by X-ray photoelectron spectroscopy of the mechanisms of interface formation and band bending for Au/Pb(Zr,Ti)O 3 (PZT) layers grown on SrTiO 3 (001) with a SrRuO 3 buffer layer, as function on the initia
Autor:
G. A. Lungu, Corneliu Ghica, Lucian Pintilie, Cristian M. Teodorescu, Nicoleta G. Apostol, Laura E. Stoflea, Raluca Negrea, Lucian Trupina, Cristina Chirila
Publikováno v:
Applied Surface Science. 273:415-425
The growth of gold layers on Pb(Zr,Ti)O 3 (PZT) deposited on SrTiO 3 is investigated by X-ray photoelectron spectroscopy in the Au thickness range 2–100 A. Two phases are identified, with compositions close to nominal PZT. The ‘standard’ phase
Autor:
Ruxandra M. Costescu, Dana G. Popescu, Nicoleta G. Apostol, Laura E. Stoflea, G. A. Lungu, Cristian M. Teodorescu
Publikováno v:
Materials, Vol 6, Iss 2, Pp 612-625 (2013)
Materials; Volume 6; Issue 2; Pages: 612-625
Materials
Materials; Volume 6; Issue 2; Pages: 612-625
Materials
Ferromagnetic FexGe1−x with x = 2%–9% are obtained by Fe deposition onto Ge(001) at high temperatures (500 °C). Low energy electron diffraction (LEED) investigation evidenced the preservation of the (1 × 1) surface structure of Ge(001) with Fe