Search Results - "NEGULESCU, B"

Wide range and tunable linear magnetic tunnel junction sensor using two exchange pinned electrodes by Negulescu, B., Lacour, D., Montaigne, F., Gerken, A., Paul, J., Spetter, V., Marien, J., Duret, C., Hehn, M.

“…A magnetic tunnel junction sensor with both the detection and the reference layers pinned by IrMn is fabricated. Using the differences in the blocking…”
Get full text

Metalliclike behavior of the exchange coupling in (001) Fe/MgO/Fe junctions by Bellouard, C., Duluard, A., Snoeck, Etienne, Lu, Y., Negulescu, B., Lacour, D., Senet, C., Robert, S., Maloufi, N., Andrieu, S., Hehn, Michel, Tiusan, C.

“…Exchange magnetic coupling between Fe electrodes through a thin MgO interlayer in epitaxial junctions has been investigated as a function of temperature, MgO…”
Get full text

Growth of polycrystalline Pr2NiO4+δ coating on alumina substrate by RF magnetron co-sputtering from composite targets by Sediri, A., Zaghrioui, M., Barichard, A., Autret, C., Negulescu, B., Del Campo, L., Echegut, P., Laffez, P.

“…Polycrystalline Pr2NiO4+δ coatings have been deposited on alumina substrates at room temperature by RF magnetron co-sputtering from Pr and Ni metallic…”
Get full text

Nonlinear piezoelectric properties of epitaxial BaTiO3 thin film by Negulescu, B., Daumont, C. J. M., Sakai, J., Ruyter, A., Bavencoffe, M., Alyabyeva, N., Wolfman, J.

“…The piezoelectric properties of epitaxial BaTiO 3 film were studied by double laser Doppler vibrometry. As expected for a ferroelectric material, the…”
Get full text

Interfacial electronic transport phenomena in single crystalline Fe-MgO-Fe thin barrier junctions by Gangineni, R. B., Bellouard, C., Duluard, A., Negulescu, B., Baraduc, C., Gaudin, G., Tiusan, C.

“…Spin filtering effects in nano-pillars of Fe-MgO-Fe single crystalline magnetic tunnel junctions are explored with two different sample architectures and thin…”
Get full text

Laser fluence and spot size effect on compositional and structural properties of BiFeO3 thin films grown by Pulsed Laser Deposition by Jaber, N., Wolfman, J., Daumont, C., Négulescu, B., Ruyter, A., Sauvage, T., Courtois, B., Bouyanfif, H., Longuet, J.L., Autret-Lambert, C., Gervais, F.

“…We investigated the effect of laser fluence and spot size on the structure and composition of BiFeO3 (BFO) epitaxial thin films grown on SrTiO3 substrates by…”
Get full text

Exchange coupling of bilayers and synthetic antiferromagnets pinned to MnPt by RIEKART, M, GUEDES, A, NEGULESCU, B, VENTURA, J, SOUSA, J. B, DIAZ, P, MACKENZIE, M, CHAPUIAN, J. N, FREITAS, P. P

Get full text

Structural characterization of MnNi and MnPt antiferromagnetic materials for spintronic applications by Teixeira, J.M., Ventura, J., Araujo, J.P., Sousa, J.B., Amaral, V.S., Negulescu, B., Rickart, M., Freitas, P.P.

“…MnNi and MnPt become antiferromagnetic (AFM) when annealed at high enough temperatures, for which a face-centered cubic (fcc) to face-centered tetragonal (fct)…”
Get full text

Temperature dependence of transport properties and exchange field of NiMn based spin valves by Teixeira, J.M., Ventura, J., Negulescu, B., Araújo, J.P., Fermento, R., Sousa, J.B., Freitas, P.P.

“…We studied ion beam deposited NiFe/CoFe/Cu/CoFe/NiMn spin valves (SVs) subjected to different thermal annealing to establish the exchange field ( H E ) of the…”
Get full text

Evidence by spectroscopic ellipsometry of optical property change in pulsed laser deposited NiO films when heated in air at Neel temperature by DAHOO, P. R, HAMON, T, NEGULESCU, B, ROCHER, P, TESSIER, M, WACK, A, THOMAS, L

“…A spectroscopic ellipsometry (SE) study of Nickel oxide (NiO) films, an anti-ferromagnetic insulator, deposited by pulsed laser ablation technique (PLD) on…”
Get full text

Local analysis of the grain and grain boundary contributions to the bulk dielectric properties of Ca(Cu3−yMgy)Ti4O12 ceramics: Importance of the potential barrier at the grain boundary by Nautiyal, A., Autret, C., Honstettre, C., De Almeida-Didry, S., El Amrani, M., Roger, S., Negulescu, B., Ruyter, A.

“…The present work focuses on two aspects related to the synthesis and the dielectric properties of CaCu3Ti4O12 (CCTO) ceramics. Effective strategies able to…”
Get full text

Laser fluence and spot size effect on compositional and structural properties of BiFeO 3 thin films grown by Pulsed Laser Deposition by Jaber, N., Wolfman, J., Daumont, C., Négulescu, B., Ruyter, A., Sauvage, T., Courtois, B., Bouyanfif, H., Longuet, J.L., Autret-Lambert, C., Gervais, F.

“…We investigated the effect of laser fluence and spot size on the structure and composition of BiFeO3 (BFO) epitaxial thin films grown on SrTiO3 substrates by…”
Get full text

ISING MODEL FOR EXCHANGE BIAS IN FERROMAGNETIC/ANTIFERROMAGNETIC BILAYERS by Negulescu, B, Tanasa, R, Stancu, A

“…We propose a Random Anisotropy Ising Model (RAIM) to describe exchange bias in a ferromagnetic(F)/antiferromagnetic(AF) system. The F and AF spins are arranged…”
Get full text

Cyclable and non-volatile electric field control of magnetism in BiFeO3 based magnetoelectric heterostructures by Daumont, C., Wolfman, J., Autret-Lambert, C., Andreazza, P., Negulescu, B.

“…Room temperature manipulation of the ferromagnetic state via an electric field is investigated in Ni/BiFe0.95Mn0.05O3 thin film heterostructures. A 600%…”
Get full text

Structural and chemical investigation of interface related magnetoelectric effect in Ni/BiFe0.95Mn0.05O3 heterostructures by Negulescu, B., Wolfman, J., Daumont, C., Jaber, N., Andreazza, P., Denneulin, T., Schamm-Chardon, S.

“…The magnetoelectric coupling mechanism in Ni/BiFe0.95Mn0.05O3 heterostructures is investigated through a detailed microstructural study of the BiFe0.95Mn0.05O3…”
Get full text

Local analysis of the grain and grain boundary contributions to the bulk dielectric properties of Ca(Cu 3−y Mg y )Ti 4 O 12 ceramics: Importance of the potential barrier at the grain boundary by Nautiyal, A., Autret, C., Honstettre, C., De Almeida-Didry, S., El Amrani, M., Roger, S., Negulescu, B., Ruyter, A.

Get full text

Nonlinear piezoelectric properties of epitaxial BaTiO 3 thin film by Negulescu, B., Daumont, C. J. M., Sakai, J., Ruyter, A., Bavencoffe, M., Alyabyeva, N., Wolfman, J.

“…The piezoelectric properties of epitaxial BaTiO 3 film were studied by double laser Doppler vibrometry. As expected for a ferroelectric material, the…”
Get full text

Fe/MgO/Fe (100) textured tunnel junctions exhibiting spin polarization features of single crystal junctions by Duluard, A., Negulescu, B., Bellouard, C., Hehn, M., Lacour, D., Lu, Y., Lengaigne, G., Montaigne, F., Robert, S., Suire, S., Tiusan, C.

“…Crystallographic and spin polarized transport properties of (100) textured and (100) epitaxial Fe/MgO/Fe magnetic tunnel junctions are compared. Strong…”
Get full text

Impact of electron-electron interactions induced by disorder at interfaces on spin-dependent tunneling in Co-Fe-B/MgO/Co-Fe-B magnetic tunnel junctions by Bernos, J., Hehn, M., Montaigne, F., Tiusan, C., Lacour, D., Alnot, M., Negulescu, B., Lengaigne, G., Snoeck, E., Aliev, F. G.

Get full text

Wide range and tunable linear magnetic tunnel junction sensor usingtwo exchange pinned electrodes by Negulescu, B., Lacour, D., Montaigne, F., Gerken, A., Paul, J., Spetter, V., Marien, J., Duret, C., Hehn, M.

“…A magnetic tunnel junction sensor with both the detection and the reference layers pinned by IrMn is fabricated. Using the differences in the blocking…”
Get full text