Maryline Guilloux-Viry

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Platinum phases of general formula [Pt(n-), M+, MX] can be electrogenerated from cathodic polarization in dry dimethylformamide containing a supporting electrolyte, MX. The reaction of these electrogenerated Pt phases as reducing agent with aryldiazonium salts was investigated for preparing controlled metal-organic interfaces and characterizing the(More)
Cathodic modification of platinum surfaces leads to the formation of iono-platinic phases ([Pt(n-), M+, MX]), which involves the insertion of cations and salts into the platinum electrode. This process was investigated at the local scale by in situ observation of surface electrochemical processes by atomic force microscopy (EC-AFM) techniques as a function(More)
Low temperature penetration depth and the effect of quasi-particle scattering measured by millimeter wave transmission in YBa 2 Cu 3 O 7−δ thin films Abstract. Measurement of the penetration depth λ(T) as a function of temperature using millimeter wave transmission in the range 130-500 GHz are reported for three YBa2Cu3O 7−δ (YBCO) laser ablated thin films.(More)
In this study about the relationships between structural and microwave electrical properties of KTa(1-x)NbxO3 (KTN) ferroelectric materials, a KTN thin film was deposited on different substrates to investigate how KTN growth affects the microwave behavior. Interdigital capacitors and stubs were made on these films through a simple engraving process.(More)
The reaction of platinum metal with an organic molecular radical anion leads to the formation of iono-metallic phases where Pt exists under negative oxidation states. This puzzling transformation of a "noncorrodible metal" was examined using localized electrochemical techniques in dimethylformamide containing different tetra-alkylammonium salts chosen as(More)
Aurivillius-phase SrBi 2 Nb 2 O 9 (SBN) ®lms grown by pulsed-laser deposition on (110)SrTiO 3 are nearly (116) oriented as shown by their X-ray diffraction ±2 scans. A speci®c artifact, leading possibly to an erroneous deduction of a (115) and (116) mixture of orientations, has been highlighted. The ®lms present a quite small mosaicity (3-scan full width at(More)
Perovskite materials with the same crystal structure as CaTiO 3 exhibit intriguing and unusual physical properties that have been extensively studied for both practical applications and theoretical modeling. From the discovery of ceramic high-temperature superconductors to the organic–inorganic semiconductors for high-efficiency photovoltaics, the materials(More)
Bi(1.5-x)Zn(0.92-y)Nb(1.5)O(6.92-δ) thin films have the potential to be implemented in microwave devices. This work aims to establish the effect of the substrate and of the grain size on the optical and dielectric properties. Bi(1.5-x)Zn(0.92-y)Nb(1.5)O(6.92-δ) thin films were grown at 700 °C via pulsed-laser deposition on R-plane sapphire and (100)(pc)(More)
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