Zobrazeno 1 - 10
of 771
pro vyhledávání: '"Urru A"'
We show that the surface of a centrosymmetric, collinear, compensated antiferromagnet, which hosts bulk ferroically ordered magnetic octupoles, exhibits a linear magnetoelectric effect, a net magnetization, and a net electric dipole moment. Thus, the
Externí odkaz:
http://arxiv.org/abs/2411.12434
Using first-principles calculations, we explore the magnetoelectric properties of the room-temperature multiferroic crystal BiCoO$_3$. We use both applied magnetic field and finite-difference techniques to show that BiCoO$_3$ is anti-magnetoelectric
Externí odkaz:
http://arxiv.org/abs/2406.06298
Autor:
Soh, Jian-Rui, Merkel, Maximilian E., Pourovskii, Leonid, Živković, Ivica, Malanyuk, Oleg, Pásztorová, Jana, Francoual, Sonia, Hirai, Daigorou, Urru, Andrea, Tolj, Davor, Fiore-Mosca, Dario, Yazyev, Oleg, Spaldin, Nicola A., Ederer, Claude, Rønnow, Henrik M.
Clarifying the underlying mechanisms that govern ordering transitions in condensed matter systems is crucial for comprehending emergent properties and phenomena. While transitions are often classified as electronically driven or lattice-driven, we pr
Externí odkaz:
http://arxiv.org/abs/2312.01767
Autor:
Bousquet, Eric, Lelièvre-Berna, Eddy, Qureshi, Navid, Soh, Jian-Rui, Spaldin, Nicola A., Urru, Andrea, Verbeek, Xanthe H., Weber, Sophie F.
Publikováno v:
J. Phys.: Condens. Matter 36 155701 (2024)
We establish the sign of the linear magnetoelectric (ME) coefficient, $\alpha$, in chromia, Cr$_2$O$_3$. Cr$_2$O$_3$ is the prototypical linear ME material, in which an electric (magnetic) field induces a linearly proportional magnetization (polariza
Externí odkaz:
http://arxiv.org/abs/2309.02095
Autor:
Comte, Valentin, Alenya, Mireia, Urru, Andrea, Recober, Judith, Nakaki, Ayako, Crovetto, Francesca, Camara, Oscar, Gratacós, Eduard, Eixarch, Elisenda, Crispi, Fàtima, Piella, Gemma, Ceresa, Mario, Ballester, Miguel A. González
Accurate segmentation of fetal brain magnetic resonance images is crucial for analyzing fetal brain development and detecting potential neurodevelopmental abnormalities. Traditional deep learning-based automatic segmentation, although effective, requ
Externí odkaz:
http://arxiv.org/abs/2307.03579
We use symmetry analysis and density functional theory to characterize antiferromagnetic (AFM) materials which have a finite equilibrium magnetization density on particular surface terminations. A nonzero magnetic dipole moment per unit area or "surf
Externí odkaz:
http://arxiv.org/abs/2306.06631
Publikováno v:
Phys. Rev. Res. 5(4):L042018 (2023)
We present ab initio calculations of hidden magnetoelectric multipolar order in Cr$_2$O$_3$ and its iron-based analogue, $\alpha$-Fe$_2$O$_3$. First, we discuss the connection between the order of such hidden multipoles and the linear magnetoelectric
Externí odkaz:
http://arxiv.org/abs/2303.00513
Autor:
Francesca Malandrone, Sara Urru, Paola Berchialla, Pierre Gilbert Rossini, Francesco Oliva, Silvia Bianchi, Manuel Ottaviano, Sergio Gonzalez-Martinez, Vladimir Carli, Gaetano Valenza, Enzo Pasquale Scilingo, Sara Carletto, Luca Ostacoli
Publikováno v:
JMIR Mental Health, Vol 11, Pp e57415-e57415 (2024)
Abstract BackgroundPatients with cancer often face depression and anxiety, and mindfulness-based interventions, including internet-based versions, can effectively reduce these symptoms and improve their quality of life. This study aims to investigat
Externí odkaz:
https://doaj.org/article/e57f43fd78664b539e7bb7deedb289a9
Autor:
Urru, Silvana A. M.1 (AUTHOR) annalisa.campomori@apss.tn.it, Mayer, Flavia2 (AUTHOR) flavia.mayer@iss.it, Spila Alegiani, Stefania2 (AUTHOR) stefania.spila@iss.it, Paoloni, Francesca3 (AUTHOR) f.paoloni@gimema.it, Guella, Anna4 (AUTHOR) anna.guella@apss.tn.it, Murru, Roberta5 (AUTHOR) roberta.murru@aob.it, Bucaneve, Giampaolo6 (AUTHOR) gbucaneve@regione.umbria.it, Formoso, Giulio7 (AUTHOR) giulio.formoso@ausl.re.it, Racanelli, Vito8 (AUTHOR) vito.racanelli@apss.tn.it, Ferrarini, Isacco9 (AUTHOR) isacco.ferrarini@univr.it, Fozza, Claudio10 (AUTHOR) cfozza@uniss.it, Longo, Giuseppe11 (AUTHOR) longo@unimore.it, Musicco, Felice12 (AUTHOR) felice.musicco@ifo.it, Campomori, Annalisa1 (AUTHOR)
Publikováno v:
Cancers. Oct2024, Vol. 16 Issue 19, p3419. 13p.
Autor:
Urru, Andrea, Soh, Jian-Rui, Qureshi, Navid, Stunault, Anne, Roessli, Bertrand, Rønnow, Henrik M., Spaldin, Nicola A.
Publikováno v:
Phys. Rev. Research 5, 033147 (2023)
We address magnetic neutron scattering in the presence of local non-centrosymmetric asymmetries of the magnetization density. Such inversion-symmetry breaking, combined with the absence of time-reversal symmetry, can be described in terms of magnetoe
Externí odkaz:
http://arxiv.org/abs/2212.06779