Zobrazeno 1 - 10
of 43
pro vyhledávání: '"Aurel Leca"'
Autor:
Ileana Cristina Vasiliu, Ana Violeta Filip, Irinela Chilibon, Mihail Elisa, Cristina Bartha, Victor Kuncser, Aurel Leca, Lucica Boroica, Bogdan Alexandru Sava, Roxana Trusca, Mihai Eftimie, Adrian Nicoara
Publikováno v:
Materials, Vol 16, Iss 18, p 6156 (2023)
A convenient and low-cost sol–gel approach for the one-step synthesis of ZnO–P2O5–rGO nanostructures with tuned bandgap and fluorescence was investigated. The obtained hybrid nanostructures exploit the properties of zinc oxide, graphene oxide a
Externí odkaz:
https://doaj.org/article/94e6f1f5ad2b400d986be41596f7ac10
Autor:
Ayushi Rai, Nicusor Iacob, Aurel Leca, Claudiu Locovei, Victor Kuncser, Cristian N. Mihailescu, Andreas Delimitis
Publikováno v:
Inorganics, Vol 10, Iss 12, p 220 (2022)
The structural properties of VO2 thin films, grown on either LSAT or Si substrates by pulsed laser deposition (PLD), are elucidated by means of transmission electron microscopy (TEM) methods. The TEM observations confirmed the successful growth of VO
Externí odkaz:
https://doaj.org/article/cc2d4d7bb6d249028a5de6728172140c
Autor:
Marwène Oumezzine, Cristina Florentina Chirila, Iuliana Pasuk, Aurelian Catalin Galca, Aurel Leca, Bogdana Borca, Victor Kuncser
Publikováno v:
Materials, Vol 15, Iss 22, p 8003 (2022)
Magnetic perovskite films have promising properties for use in energy-efficient spintronic devices and magnetic refrigeration. Here, an epitaxial ferromagnetic La0.67Ba0.33Mn0.95Ti0.05O3 (LBMTO-5) thin film was grown on SrTiO3(001) single crystal sub
Externí odkaz:
https://doaj.org/article/1acede4df2d848b7a5892cbe4989c0ec
Autor:
Simona Gabriela Greculeasa, Anda-Elena Stanciu, Aurel Leca, Andrei Kuncser, Luminita Hrib, Cristina Chirila, Iuliana Pasuk, Victor Kuncser
Publikováno v:
Nanomaterials, Vol 11, Iss 12, p 3389 (2021)
Epitaxial La0.7Sr0.3MnO3 films with different thicknesses (9–90 nm) were deposited on SrTiO3 (0 0 1) substrates by pulsed laser deposition. The films have been investigated with respect to morpho-structural, magnetic, and magneto-transport properti
Externí odkaz:
https://doaj.org/article/0b87271745bd4248a85ac2d16db60de5
Publikováno v:
Nanomaterials, Vol 11, Iss 11, p 2898 (2021)
Alloys possessing nominal compositions Mn53Al45C2 and Mn52Al46C2 were prepared by the melt spinning method and were subjected to complex structural, morphological and magnetic investigations. As these alloys can exhibit tetragonal L10-type and τ pha
Externí odkaz:
https://doaj.org/article/2bceabaa42064ee9b39ddd8a5a26281e
Publikováno v:
Nanomaterials, Vol 11, Iss 4, p 896 (2021)
Melt spun ribbons of Mn53Al45C2 and Mn52Al46C2 have been synthesized by rapid quenching of the melt with the purpose of monitoring the ε-τ phase transformation to show technologically feasible ways to increase magnetic parameters and to illustrate
Externí odkaz:
https://doaj.org/article/989ce1cb71a848179888421050be1c9c
Publikováno v:
Materials, Vol 13, Iss 13, p 2980 (2020)
In this study, we report on the structural, magnetic, and optical properties of Tb3+-doped CeF3 nanocrystals prepared via a polyol-assisted route, followed by calcination. X-ray diffraction analysis and electron microscopy investigations have shown t
Externí odkaz:
https://doaj.org/article/06ad2f48f1fa41eb83975fcc4f50c7c1
Publikováno v:
Nanomaterials, Vol 10, Iss 7, p 1278 (2020)
Magnetic nanoscale materials exhibiting the L10 tetragonal phase such as FePt or ternary alloys derived from FePt show most promising magnetic properties as a novel class of rare earth free permanent magnets with high operating temperature. A granula
Externí odkaz:
https://doaj.org/article/a0307cc2da564ff694471c003b700f48
Autor:
Irina Alexandra Paun, Bogdan Stefanita Calin, Cosmin Catalin Mustaciosu, Mona Mihailescu, Antoniu Moldovan, Ovidiu Crisan, Aurel Leca, Catalin Romeo Luculescu
Publikováno v:
Materials, Vol 12, Iss 17, p 2834 (2019)
We reported on three-dimensional (3D) superparamagnetic scaffolds that enhanced the mineralization of magnetic nanoparticle-free osteoblast cells. The scaffolds were fabricated with submicronic resolution by laser direct writing via two photons polym
Externí odkaz:
https://doaj.org/article/9d87e2b1eb1f4acbb8d41aaf136093a2
Autor:
Bogdan Florian Monea, Eusebiu Ilarian Ionete, Stefan Ionut Spiridon, Aurel Leca, Anda Stanciu, Emil Petre, Ashok Vaseashta
Publikováno v:
Sensors, Vol 17, Iss 9, p 2071 (2017)
We present an investigation consisting of single walled carbon nanotubes (SWCNTs) based cryogenic temperature sensors, capable of measuring temperatures in the range of 2–77 K. Carbon nanotubes (CNTs) due to their extremely small size, superior the
Externí odkaz:
https://doaj.org/article/8bed8bf417774807a94d5991065ebf96