Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Giorgio Concas"'
Autor:
Giuseppe Muscas, Francesco Congiu, Giorgio Concas, Carla Cannas, Valentina Mameli, Nader Yaacoub, Rodaina Sayed Hassan, Dino Fiorani, Sawssen Slimani, Davide Peddis
Publikováno v:
Nanoscale Research Letters, Vol 17, Iss 1, Pp 1-13 (2022)
Abstract Despite modern preparation techniques offer the opportunity to tailor the composition, size, and shape of magnetic nanoparticles, understanding and hence controlling the magnetic properties of such entities remains a challenging task, due to
Externí odkaz:
https://doaj.org/article/1d5192289a624fb891be9c14b76ad22b
Autor:
Bagher Aslibeiki, Parviz Kameli, Hadi Salamati, Giorgio Concas, Maria Salvador Fernandez, Alessandro Talone, Giuseppe Muscas, Davide Peddis
Publikováno v:
Beilstein Journal of Nanotechnology, Vol 10, Iss 1, Pp 856-865 (2019)
The effect of cobalt doping on the magnetic properties of Mn1−xCoxFe2O4 nanoparticles was investigated. All samples consist of ensembles of nanoparticles with a spherical shape and average diameter of about 10 nm, showing small structural changes d
Externí odkaz:
https://doaj.org/article/9fbcda29069f4f7ca57cffeb928f5a95
Autor:
Francesco Congiu, E. Dhahri, Nader Yaacoub, Giorgio Concas, Sawssen Slimani, Giuseppe Muscas, Gianni Barucca, Alessandro Talone, Davide Peddis, M. Smari
Publikováno v:
The Journal of Physical Chemistry C. 125:10611-10620
When preparing nanostructured magnetic materials, the presence of an amorphous component is often considered a weakness of the synthesis method and a waste of material. This stems because the amorp...
Publikováno v:
Journal of physics. Condensed matter : an Institute of Physics journal. 34(7)
We report on a full potential density functional theory characterization of Y
Publikováno v:
Journal of physical chemistry. C 121 (2017): 16541–16548. doi:10.1021/acs.jpcc.7b01748
info:cnr-pdr/source/autori:Concas, G.; Congiu, F.; Muscas, G.; Peddis, D./titolo:Determination of Blocking Temperature in Magnetization and Mossbauer Time Scale: A Functional Form Approach/doi:10.1021%2Facs.jpcc.7b01748/rivista:Journal of physical chemistry. C/anno:2017/pagina_da:16541/pagina_a:16548/intervallo_pagine:16541–16548/volume:121
Journal of Physical Chemistry. C
info:cnr-pdr/source/autori:Concas, G.; Congiu, F.; Muscas, G.; Peddis, D./titolo:Determination of Blocking Temperature in Magnetization and Mossbauer Time Scale: A Functional Form Approach/doi:10.1021%2Facs.jpcc.7b01748/rivista:Journal of physical chemistry. C/anno:2017/pagina_da:16541/pagina_a:16548/intervallo_pagine:16541–16548/volume:121
Journal of Physical Chemistry. C
We studied the temperature,dependence of the magnetization in an ensemble of monodomain nanoparticles both with dc magnetometry and Mossbauer spectroscopy. The analytical form of the temperature dependence is given by the complementary cumulative dis
Autor:
Anna Maria Giovanna Musinu, Claudio Sangregorio, Sara Laureti, Giorgio Concas, Carla Cannas, Roland Mathieu, Giuseppe Muscas, Su Seong Lee, Miguel A. Novak, J. A. De Toro, A.M. Testa, Davide Peddis
Publikováno v:
PCCP. Physical chemistry chemical physics
20 (2018): 28634. doi:10.1039/c8cp03934h
info:cnr-pdr/source/autori:G. Muscas, G. Concas, S. Laureti, A. M. Testa, R. Mathieu, . A. De Toro, C. Cannas, A. Musinu, M. A. Novak, C. Sangregorio, Su Seong Leei and D. Peddis */titolo:The interplay between single particle anisotropy and interparticle interactions in ensembles of magnetic nanoparticles/doi:10.1039%2Fc8cp03934h/rivista:PCCP. Physical chemistry chemical physics (Print)/anno:2018/pagina_da:28634/pagina_a:/intervallo_pagine:28634/volume:20
20 (2018): 28634. doi:10.1039/c8cp03934h
info:cnr-pdr/source/autori:G. Muscas, G. Concas, S. Laureti, A. M. Testa, R. Mathieu, . A. De Toro, C. Cannas, A. Musinu, M. A. Novak, C. Sangregorio, Su Seong Leei and D. Peddis */titolo:The interplay between single particle anisotropy and interparticle interactions in ensembles of magnetic nanoparticles/doi:10.1039%2Fc8cp03934h/rivista:PCCP. Physical chemistry chemical physics (Print)/anno:2018/pagina_da:28634/pagina_a:/intervallo_pagine:28634/volume:20
This paper aims to analyze the competition of single particle anisotropy and interparticle interactions in nanoparticle ensembles using a random anisotropy model. The model is first applied to ideal systems of non-interacting and strongly dipolar int
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::713600794d70d2f8f1b0033e6635a42f
Autor:
Luca Pilia, Davide Espa, Francesco Congiu, Luciano Marchiò, Paola Deplano, Giorgio Concas, Angela Serpe, M. Laura Mercuri
Publikováno v:
New Journal of Chemistry. 39:4716-4725
New iron and cobalt complexes coordinated with the ligands Me2pipto (N,N′-dimethyl-piperazine-3-oxo-2-thione) and Me2pipdt (N,N′-dimethyl-piperazine-2,3-dithione, S,S′), differing in one sulphur substituting the oxygen atom, have been prepared
Autor:
Elisa Sessini, Paola Deplano, Flavia Artizzu, Angela Serpe, Francesco Congiu, Luciano Marchiò, Davide Espa, Salahuddin S. Attar, M. Laura Mercuri, Giorgio Concas
Publikováno v:
Inorganic chemistry. 55(11)
The platinum salt C[PtL2], where C = [(R)-Ph(Me)HC*-NMe3](+) and [PtL2](-) = radical monoanion based on [4', 5': 5, 6][1, 4]dithiino[2,3-b]quinoxaline-1',3'dithiolato, shows a variety of properties both in solution and in the solid state thanks to th
Autor:
Roland Mathieu, Gianni Barucca, P. Anil Kumar, Gaspare Varvaro, Giorgio Concas, Giuseppe Muscas, Davide Peddis
Publikováno v:
Nanoscale
8 (2016): 2081–2089. doi:10.1039/c5nr07572f
info:cnr-pdr/source/autori:Muscas G.; Anil Kumar P.; Barucca G.; Concas G.; Varvaro G.; Mathieu R.; Peddis D./titolo:Designing new ferrite%2Fmanganite nanocomposites/doi:10.1039%2Fc5nr07572f/rivista:Nanoscale (Print)/anno:2016/pagina_da:2081/pagina_a:2089/intervallo_pagine:2081–2089/volume:8
8 (2016): 2081–2089. doi:10.1039/c5nr07572f
info:cnr-pdr/source/autori:Muscas G.; Anil Kumar P.; Barucca G.; Concas G.; Varvaro G.; Mathieu R.; Peddis D./titolo:Designing new ferrite%2Fmanganite nanocomposites/doi:10.1039%2Fc5nr07572f/rivista:Nanoscale (Print)/anno:2016/pagina_da:2081/pagina_a:2089/intervallo_pagine:2081–2089/volume:8
Two kinds of nanocomposites of transition metal oxides were synthesized and investigated. Each nanocomposite comprises nanoparticles of La0.67Ca0.33MnO3 and CoFe2O4 in similar volume fractions, however arranged with different morphologies. The temper
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a6aacb5f7967bc5b1510e686f13e6ea
http://www.cnr.it/prodotto/i/358128
http://www.cnr.it/prodotto/i/358128
Autor:
Danilo Loche, Maria Francesca Casula, Giorgio Concas, Anna Corrias, Francesco Congiu, Claudia Marras, G. Spano
Publikováno v:
Journal of Nanoscience and Nanotechnology. 11:10136-10141
Stoichiometric magnetic nanosized ferrites MFe2O4 (M = Mn, Co, Ni) were prepared in form of nearly spherical nanocrystals supported on a highly porous silica aerogel matrix, by a sol-gel procedure. X-ray diffraction and transmission electron microsco