Zobrazeno 1 - 10
of 68
pro vyhledávání: '"Martin Sirena"'
Autor:
Simón Roa, Martin Sirena
Publikováno v:
Journal of Materials Research. 36:938-948
We report a systematic study about the thickness and microstructure influence on the mechanical properties of nanocrystalline Cu thin films grown by DC sputtering. Mechanical properties were determined by using atomic force microscopy-assisted nanoin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::153a8ff0273473e8fa858dbcc9ecb346
https://doi.org/10.1557/s43578-021-00147-z
https://doi.org/10.1557/s43578-021-00147-z
Publikováno v:
Materials Today: Proceedings. 14:96-99
We study the thickness influence on the martensitic transformation in Cu-Al-Ni thin films grown by sputtering on Si (001). Thin films with thicknesses between 0.1 μm and 2.25 μm were grown at 563 K. The analysis of the microstructure reveals a colu
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3b8d6f38f4053c67fe6c8b69d5912d05
https://doi.org/10.1016/j.matpr.2019.05.061
https://doi.org/10.1016/j.matpr.2019.05.061
Publikováno v:
Materials Today: Proceedings. 14:113-116
We study the mechanical properties of Cu thin films on Si (100) by performing nano-indentation using an atomic force microscopy. Cu films with thickness of 0.3 µm, 1 µm and 2 µm were analyzed. Area profile studies let us understand the critical in
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::ba302b648b8d28f8065f491f9c5dec5d
https://doi.org/10.1016/j.matpr.2019.05.065
https://doi.org/10.1016/j.matpr.2019.05.065
Autor:
Martin Sirena, Simón Roa
Publikováno v:
SSRN Electronic Journal.
A systematic finite element analysis (FEA) of conical indentation in different isotropic elastic-plastic bulk solids was realized. In particular, the relation between the indentation Hardness (H)-to-Reduced Elastic Modulus (Er) ratio and the Elastic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b22b860be4845abdbc9a5b535e1a7d10
https://doi.org/10.2139/ssrn.3765775
https://doi.org/10.2139/ssrn.3765775
We study the electrical transport of vertically-stacked Josephson tunnel junctions using GdBa$_2$Cu$_3$O$_{7-d}$ electrodes and a BaTiO$_3$ barrier with thicknesses between 1 nm and 3 nm. The junctions with an area of 20 mm x 20 mm were fabricated co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a70efcb4fd9b9b21b366ad82de676b55
http://arxiv.org/abs/2005.01236
http://arxiv.org/abs/2005.01236
Autor:
P. Granel, S. Bengió, M. Granada, A. Sarmiento Chávez, J. Gonzalez Sutter, N. Haberkorn, Martin Sirena, G. Leyva, L. Neñer, Federico Golmar, S. Soria
Publikováno v:
Materials Chemistry and Physics. 271:124910
La0·8Ba0·2MnO3, Ba0·25Sr0·75TiO3 and BaTiO3 superlattices were grown to study the influence of structural disorder on the physical properties of multiferroic multilayers. Controlling the lattice mismatch of the superlattices allowed growing struc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a2ed25ebfea8f36eb75db59432e03ee1
https://doi.org/10.1016/j.matchemphys.2021.124910
https://doi.org/10.1016/j.matchemphys.2021.124910
Autor:
Martin Sirena, G. Leyva, N. Haberkorn, J. Gonzalez Sutter, Karim Bouzehouane, H. Navarro, L. Neñer, S. Fusil
Publikováno v:
Thin Solid Films. 639:42-46
Oxygen vacancies in oxides nanostructures are the origin of many intriguing phenomena. We have studied the influence of the oxygen pressure in the tunneling properties of a ferroelectric barrier, Ba0.25Sr0.75TiO3 (BSTO), grown over a ferromagnetic el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e2a6f06c899683b17949fce9066c710e
https://doi.org/10.1016/j.tsf.2017.08.020
https://doi.org/10.1016/j.tsf.2017.08.020
Autor:
Nestor Fabian Haberkorn, Martin Sirena, Adriana M. Condó, Mauricio Javier Morán, Flavio Soldera
Publikováno v:
Materials Letters. 184:177-180
In order to use the shape memory alloy Cu-Al-Ni in micro-actuators, freestanding thin films with martensitic transformation are required. Here we show that freestanding Cu-Al-Ni thin films with L21 structure, martensitic transformation and shape memo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9e4494b0e86156030bff16ab2a9788a2
https://doi.org/10.1016/j.matlet.2016.08.027
https://doi.org/10.1016/j.matlet.2016.08.027
Publikováno v:
Nanotechnology. 31(10)
We report the electrical transport in vertical Josephson tunnel junctions (area 400 $\mu m$$^2$) using GdBa$_2$Cu$_3$O$_7$$_{-\delta}$ electrodes and SrTiO$_3$ as an insulating barrier (with thicknesses between 1 nm and 4 nm). The results show Joseph
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::defb38ffc8624d4a353aac6690e6288e
https://pubmed.ncbi.nlm.nih.gov/31751967
https://pubmed.ncbi.nlm.nih.gov/31751967
Autor:
S. Bengió, Mauricio Javier Morán, Martin Sirena, Flavio Soldera, Adriana M. Condó, N. Haberkorn
Publikováno v:
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
The martensitic transformation of polycrystalline thin films based on shape memory alloys is usually affected by the average grain size and by the thickness. We have carried out a study of the temperature driven martensitic transformation in micromet
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a53a147cf9b260d9b45cab3cf48b605b
https://iopscience.iop.org/article/10.1088/2053-1591/ab2fbf
https://iopscience.iop.org/article/10.1088/2053-1591/ab2fbf