Zobrazeno 1 - 10
of 50
pro vyhledávání: '"Armandina M L, Lopes"'
Autor:
Marcelo B. Barbosa, João Guilherme Correia, Katharina Lorenz, Armandina M. L. Lopes, Gonçalo N. P. Oliveira, Abel S. Fenta, Juliana Schell, Ricardo Teixeira, Emilio Nogales, Bianchi Méndez, Alessandro Stroppa, João Pedro Araújo
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-1 (2024)
Externí odkaz:
https://doaj.org/article/aaba7421c0f44777b0e57d0f2915655a
Autor:
Marcelo B. Barbosa, João Guilherme Correia, Katharina Lorenz, Armandina M. L. Lopes, Gonçalo N. P. Oliveira, Abel S. Fenta, Juliana Schell, Ricardo Teixeira, Emilio Nogales, Bianchi Méndez, Alessandro Stroppa, João Pedro Araújo
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-9 (2022)
Abstract Finding suitable p-type dopants, as well as reliable doping and characterization methods for the emerging wide bandgap semiconductor $$\beta$$ β - $${\mathrm{Ga}_{2}\mathrm{O}_{3}}$$ Ga 2 O 3 could strongly influence and contribute to the d
Externí odkaz:
https://doaj.org/article/1f53832feefd4d8ea3955911ea2cf7c3
Autor:
Gonçalo N. P. Oliveira, Pedro R. Rodrigues, João G. Correia, João P. E. Araújo, Armandina M. L. Lopes
Publikováno v:
Crystals, Vol 13, Iss 1, p 54 (2022)
Local distortions in perovskite-like orthochromites are of extreme importance for the properties they exhibit. Here, we present the results of structural and DC magnetisation measurements combined with local probe studies in polycrystalline ErCrO3. T
Externí odkaz:
https://doaj.org/article/1fabaad3eccc40f1820c220b72587b77
Autor:
Estelina Lora da Silva, Adeleh Mokhles Gerami, P. Neenu Lekshmi, Michel L. Marcondes, Lucy V. C. Assali, Helena M. Petrilli, Joao Guilherme Correia, Armandina M. L. Lopes, João P. Araújo
Publikováno v:
Nanomaterials, Vol 11, Iss 4, p 897 (2021)
We present an ab-initio study performed in the framework of density functional theory, group-subgroup symmetry analysis and lattice dynamics, to probe the octahedral distortions, which occur during the structural phase transitions of the quasi-2D lay
Externí odkaz:
https://doaj.org/article/a4801716a74d4ed1becbb865195e86b4
Autor:
Arlete Apolinário, Célia T. Sousa, Gonçalo N. P. Oliveira, Armandina M. L. Lopes, João Ventura, Luísa Andrade, Adélio Mendes, João P. Araújo
Publikováno v:
Nanomaterials, Vol 10, Iss 2, p 382 (2020)
Highly ordered anodic hafnium oxide (AHO) nanoporous or nanotubes were synthesized by electrochemical anodization of Hf foils. The growth of self-ordered AHO was investigated by optimizing a key electrochemical anodization parameter, the solvent-base
Externí odkaz:
https://doaj.org/article/f31a28bbb4a142d28590f94f3d11624f
Autor:
Marcelo B. Barbosa, João Guilherme Correia, Katharina Lorenz, Armandina M. L. Lopes, Gonçalo N. P. Oliveira, Abel S. Fenta, Juliana Schell, Ricardo Teixeira, Emilio Nogales, Bianchi Méndez, Alessandro Stroppa, João Pedro Araújo
Publikováno v:
Scientific Reports. 12
Finding suitable p-type dopants, as well as reliable doping and characterization methods for the emerging wide bandgap semiconductor $$\beta$$ β -$${\mathrm{Ga}_{2}\mathrm{O}_{3}}$$ Ga 2 O 3 could strongly influence and contribute to the development
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::58fb1b7f00ed0f9606cf0190e48c1447
https://doi.org/10.1038/s41598-022-18121-y
https://doi.org/10.1038/s41598-022-18121-y
Autor:
Boris Shivachev, R. P. Nikolova, Stanislav Ferdov, N. Petrova, Armandina M. L. Lopes, Rositsa Titorenkova, João P. Araújo
Publikováno v:
Inorganic Chemistry. 60:4563-4568
Small-pore iron silicate MS-1 (Minho-Sofia, solid number 1) with a 3D porous system, an analogue of the rare mineral imandrite, has been synthesized and characterized. This material is the lowest framework density iron silicate, one of the most silic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7da31accba13585b042a4c8753085bb
https://doi.org/10.1021/acs.inorgchem.0c03487
https://doi.org/10.1021/acs.inorgchem.0c03487
Autor:
Armandina M. L. Lopes, Albano N. Carneiro Neto, Paula Brandão, Alexandre M. P. Botas, Rute A. S. Ferreira, Alolika Sarkar, João P. Araújo, Rupam Sen, Zhi Lin, Sanchayeeta Paul
Publikováno v:
CrystEngComm. 23:4143-4151
A new series of 3D lanthanide (Ln) frameworks has been synthesized with the general formula [{Ln(L)(H2O)}·H2O]n (where Ln = La(1), Tb(2) and Dy(3); L = (HO)OC6H2(CH2COO)2; H3L = 2,5-dihydroxy-1,4-benzenediacetic acid = DHBDA). All the crystals were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::40ce55ca56f1a54d2ad47328f224f21a
https://doi.org/10.1039/d1ce00228g
https://doi.org/10.1039/d1ce00228g
Autor:
I. P. Miranda, Samuel S. M. Santos, João P. Araújo, Lucy V. C. Assali, Armandina M. L. Lopes, Helena M. Petrilli, Michel L. Marcondes, Pedro Rocha-Rodrigues
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
An ab initio study of several hybrid improper ferroelectric (HIF) materials in the Ruddlesden–Popper phases and double perovskite structures is here presented. The focus is on the correlation between the electric field gradient at several nuclear s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fbd0044ac1784afdfae521e3592c12db
https://doi.org/10.1039/d1tc00989c
https://doi.org/10.1039/d1tc00989c
Autor:
Helena M. Petrilli, I. P. Miranda, Samuel S. M. Santos, João P. Araújo, Armandina M. L. Lopes, Pedro Rocha-Rodrigues, Michel L. Marcondes, Lucy V. C. Assali
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
The effect of substituting Ca by Cd in several Ca3B2O7 Ruddlesden–Popper (RP) and double perovskite (DP) CaCdB2O6 systems, where B is Mn or Ti, is here deeply investigated through ab initio calculations. We show that these cation substitutions have
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d0ff9223cd2edcb71f04679051c86bbc
https://doi.org/10.1039/d0tc03161e
https://doi.org/10.1039/d0tc03161e