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Dielectric characterization of ferroelectric thin films deposited on silicon

Autor: T. Haccart, G. Velu, F. Mehri, D. Chambonnet, D. Remiens, C. Legrand, J.C. Carru, L. Burgnies

Publikováno v: Microelectronics Reliability. 39:251-256

This paper describes some experimental results concerning the dielectric characterizations of PZT, PT and BT ferroelectric thin films deposited on silicon. Firstly, the ferroelectric properties of these films are checked, notably the high dielectric

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::77d591696c5425a537d7e249ae480fb2
https://doi.org/10.1016/s0026-2714(98)00238-8

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Microwave properties of YBa2Cu3O7−δ thin films grown on MgO or Al2O3 substrates

Autor: Pascal Lederer, D. Chambonnet, L. Correra, C. Belouet, C. Fages, D. Keller, S. Degoy, F. Mehri, J.C. Carru

Publikováno v: Physica C: Superconductivity. 271:67-78

The conductivity σ∗ = σ 1 + j σ 2 of YBCO films grown by pulsed laser assisted deposition on (100) MgO and (1 1 02) Al2O3 substrates was measured at 22 GHz using a microwave transmission method. A peak close to the transition temperature was obs

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1d5224cdb30cb9208a9153624972a3e7
https://doi.org/10.1016/s0921-4534(96)00525-4

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Microwave characterization of high Tc superconducting YBaCuO thin films and preliminary device realization

Autor: F. Mehri, Y. Crosnier, J.C. Carru, J.C. Villegier, D. Chauvel, K. Deneffe

Publikováno v: Microelectronic Engineering. 19:763-766

High T c superconducting thin films have been realized on MgO and LaAIO 3 by laser ablation and sputtering. Their critical temperature are close to 90K. Their microwave properties have been tested on the one hand by the measurement of the complex con

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6e85c85f8f5ff6e3253627fcf0069a53
https://doi.org/10.1016/0167-9317(92)90540-8

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Characterization of superconductor coplanar resonators deposited on different substrates by thermal coevaporation

Autor: G. Alquié, D. Seron, J.C. Carru, N.E. Bourzgui, Hamid Kokabi, Y. Roelens

Publikováno v: Journal of Superconductivity and Novel Magnetism
Journal of Superconductivity and Novel Magnetism, 2006, 19, pp.661-667. ⟨10.1007/s10948-006-0127-1⟩
Journal of Superconductivity and Novel Magnetism, Springer Verlag, 2006, 19, pp.661-667. ⟨10.1007/s10948-006-0127-1⟩

This study is based on two commercially available YBCO thin films deposited by the thermal coevaporation method on different substrates (MgO and LaAlO3). Those films should be optimized for microwave applications. The structure and microstructure of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::93273ad85132eefb6b9bac4469faca45
https://hal.science/hal-00243995

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A 310/spl deg/ K-band phaseshifter using tunable BaSrTiO/sub 3/ interdigitated capacitors

Autor: J.C. Carru, Karine Blary, E. Delos, G. Velu, Didier Lippens, A. Marteau, L. Burgnies

Publikováno v: 2005 European Microwave Conference.

BaSrTiO/sub 3/ thin films were deposited by low-cost sol-gel techniques and exhibit relative permittivity of 300 and loss tangent of 0.012 with a roll off above 5 GHz. Subsequently the films were used for fabricating coplanar waveguide phaseshifters

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::012262604bf16da1fd6bd56c2317cb51
https://doi.org/10.1109/eumc.2005.1608942

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A12-GHZ high-temperature superconducting semiconductor oscillator

Autor: D. Chauvel, D. Chambonnet, J.C. Carru, Y. Crosnier, C. Belouet

Publikováno v: Microwave and Optical Technology Letters. 9:235-237

In view of a monolithic integration of high-temperature superconducting (HTS) passive circuits and semiconductor (SC) active devices, we propose in this work a hybrid SC / HTS microstrip oscillator operating at 77 K and 12 GHz, combining a HEMT and a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::98838176059210cf3b812d18402281c0
https://doi.org/10.1002/mop.4650090503

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Akademický článek

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Microwave Measurements on YBaCuO Thin Films and Realisation of Microwave Superconducting Devices

Autor: P. Lepercq, F. Mehri, I. François, Y. Crosnier, J.C. Carru, N. Bourzgui, Gustaaf Borghs, J. De Boeck

Publikováno v: Journal de Physique IV Proceedings
Journal de Physique IV Proceedings, EDP Sciences, 1996, 06 (C3), pp.C3-391-C3-396. ⟨10.1051/jp4:1996359⟩

Two characterisations methods in microwaves are presented. They permit to obtain σ*, Rs and λ for a HTS film without the need of any theoretical model for the superconductivity. The best film tested exhibits at 35GHz and 78K a Rs value of 10mΩ. at

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f9a8fd313c1ac4e1732f12a3eec06047
https://hal.archives-ouvertes.fr/jpa-00254277/document

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CAD Modelling and Characterization of a Superconducting Planar Microwave Resonator Using Complex Conductivity Measurements

Autor: D. Chauvel, F. Mehri, Y. Crosnier, C. Delabie, J.C. Carru, C. Belouet, D. Chambonnet

Publikováno v: 1994 24th European Microwave Conference.

This paper presents a large investigation on the microwave properties of a high Tc YBaCuO superconducting thin film and, for the first time, meets in a global and comparative approach : determination of the complex conductivity ?* from a transmission

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6e44c1aac92c39b4486cb3c40911cf4f
https://doi.org/10.1109/euma.1994.337240

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