|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Perovskite type lanthanum manganite:Morpho-structural analysis and electrical investigations显示文摘Perovskite-type oxides of LaMnO_3 were synthesized by means of the sol-gel method, in the presence of citric acid as gelling agent. The precursors used were Mn(NO_3)_2·H_2O, La_2O_3, and NaOH,mixed in the stoichiometric ratio to obtain perovskite materials. The obtained gel was heat-treated at 400, 600 and 800 ℃ respectively, for 6 h. X-ray diffraction and FT-IR spectroscopy were used to analyze the phase transformation as a function of temperature, and the Rietveld refinement was used in order to characterize the materials obtained structurally. The average crystallite size of the products was calculated from XRD data and the average particle size was measured from the TEM micrographs. At 600 ℃, the synthesized compound is well-crystallized, showcases a perovskite structure(Pm-3m space group), and exhibits uniform and homogeneous hexagonally-shaped particles, with sizes in the 20-50 nm range.Complex impedance measurements in the 20-2 × 10~6 Hz frequency range were carried out at different temperatures(26-115 ℃), and the electrical conduction mechanism is discussed. | Paula Sfirloaga Maria Poienar Iosif Malaescu Antoanetta Lungu Paulina Vlazan | 2018 | Journal of Rare Earths2018，36，5： | 3 |
| 2 | Reevaluation of the hadronic contributions to the muon g ?2 and to $\alpha (M^{2}_{Z})$显示文摘 | M. Davier A. Hoecker B. Malaescu Z. Zhang | 2011 | The European Physical Journal C2011，，： | 3 |
| 3 | An Investigation of the Microscopic and Macroscopic Properties of Magnetic Fluids显示文摘 | Fannin PC Marin C N Malaescu I | 2007 | Condensed Matter2007，338，1： | 1 |
| 4 | Doped Bi2Te3 nano-structured semiconductors obtained by ultrasonically assisted hydrothermal method显示文摘 | Stefan Novaconi Paulina Vlazan Iosif Malaescu | 2013 | Central European Journal of Chemistry2013，11，10： | 1 |
| 5 | An investigation of the microscopic and macroscopic properties of magnetic fluids 显示文摘 | Fannin P C Marin C N Malaescu I | 2007 | Condensed Matter2007，388，12： | 1 |
| 6 | An investigation of the microscopic and macroscopic properties of magnetic fluids显示文摘 | Fannin P C Marin C N Malaescu I | 2007 | Condensed Matter2007，388，1： | 1 |
| 7 | An investigation of the microscopic and macroscopic properties of magnetic fluids显示文摘 | Fannin P C Marin C N Malaescu I | 2007 | Condensed Matter2007，388，1： | 1 |
| 8 | Doped Bi2Te3 nano-structured semiconductors obtained by ultrasonically assisted hydrothermal method显示文摘 | tefan Novaconi Paulina Vlazan Iosif Malaescu | 2013 | Central European Journal of Chemistry2013，11，10： | 1 |
您所在的机构暂未开通此部分的功能，请联系管理员