Zobrazeno 1 - 10
of 72
pro vyhledávání: '"Bonfà, Pietro"'
Autor:
Sahoo, Manaswini, Bonfà, Pietro, Hall, Amelia. E., Mayoh, Daniel. A., Corredor, Laura T., Wolter, Anja U. B., Büchner, Bernd, Balakrishnan, Geetha, De Renzi, Roberto, Allodi, Giuseppe
The discovery of chiral helical magnetism (CHM) in Cr$_{1/3}$NbS$_2$ and the stabilization of a chiral soliton lattice (CSL) has attracted considerable interest in view of their potential technological applications. However, there is an ongoing debat
Externí odkaz:
http://arxiv.org/abs/2410.01631
Autor:
Onuorah, Ifeanyi J., Bonacci, Miki, Isah, Muhammad M., Mazzani, Marcello, De Renzi, Roberto, Pizzi, Giovanni, Bonfa`, Pietro
Positive muon spin rotation and relaxation spectroscopy is a well established experimental technique for studying materials. It provides a local probe that generally complements scattering techniques in the study of magnetic systems and represents a
Externí odkaz:
http://arxiv.org/abs/2408.16722
Autor:
Onuorah, Ifeanyi John, Frassineti, Jonathan, Wang, Qiaochu, Isah, Muhammad Maikudi, Bonfa, Pietro, Rau, Jeffrey G., Rodriguez-Rivera, J. A., Kolesnikov, A. I., Mitrovic, Vesna F., Sanna, Samuele, Plumb, Kemp W.
A comprehensive set of muon spin spectroscopy and neutron scattering measurements supported by ab-initio and model Hamiltonian simulations have been used to investigate the magnetic ground state of Na$_2$PrO$_3$. $\mu$SR reveals N\'eel antiferromagne
Externí odkaz:
http://arxiv.org/abs/2407.12935
Autor:
Bonfà, Pietro, Onuorah, Ifeanyi John, Lang, Franz, Timrov, Iurii, Monacelli, Lorenzo, Wang, Chennan, Sun, Xiao, Petracic, Oleg, Pizzi, Giovanni, Marzari, Nicola, Blundell, Stephen J., De Renzi, Roberto
Publikováno v:
Phys. Rev. Lett. 132, 046701 (2024)
Magnetostriction drives a rhombohedral distortion in the cubic rock salt antiferromagnet MnO at the N\'eel temperature $T_{N}=118$ K. As an unexpected consequence we show that this distortion acts to localize the site of an implanted muon due to the
Externí odkaz:
http://arxiv.org/abs/2305.12237
Publikováno v:
Computational Materials Today, 1, 100002 (2024)
Mejia-Rodriguez and Trickey recently proposed a procedure for removing the explicit dependence of meta-GGA exchange-correlation energy functionals $E_{\rm xc}$ on the kinetic energy density $\tau$. We present a simple modification to this approach in
Externí odkaz:
http://arxiv.org/abs/2304.02363
Autor:
Bonfà, Pietro, Chicco, Simone, Cugini, Francesco, Sharma, Sangeeta, Dewhurst, John Kay, Allodi, Giuseppe
Publikováno v:
Electron. Struct. 4 024002 (2022)
Heusler compounds have been intensively studied owing to the important technological advancements that they provide in the field of shape memory, thermomagnetic energy conversion and spintronics. Many of their intriguing properties are ultimately gov
Externí odkaz:
http://arxiv.org/abs/2302.07550
Autor:
Frassineti, Jonathan, Bonfà, Pietro, Allodi, Giuseppe, Garcia, Erick, Cong, Rong, Ortiz, Brenden R., Wilson, Stephen D., De Renzi, Roberto, Mitrović, Vesna F., Sanna, Samuele
Publikováno v:
Phys. Rev. Research 5, L012017 (2023) OPEN ACCESS
The recently discovered vanadium-based kagome metals AV$_3$Sb$_5$ (A = K, Rb, Cs) offer the possibility to study the interplay between competing electronic orderings, such as charge density order and superconductivity. We focus on the former and prov
Externí odkaz:
http://arxiv.org/abs/2210.06523
Autor:
Bonfà, Pietro, Frassineti, Jonathan, Wilkinson, John M., Prando, Giacomo, Isah, Muhammad M., Wang, Chennan, Spina, Tiziana, Joseph, Boby, Mitrović, Vesna, De Renzi, Roberto, Blundell, Stephen J., Sanna, Samuele
Publikováno v:
Phys. Rev. Lett. 129, 097205 (2022)
We report on the first example of quantum coherence between the spins of muons and quadrupolar nuclei. We observe this effect in vanadium intermetallic compounds which adopt the A15 crystal structure, and whose members include all technologically dom
Externí odkaz:
http://arxiv.org/abs/2202.13742
Autor:
Potashnikov, Daniel, Caspi, Elad Nisan, Pesach, Asaf, Tao, Quanzheng, Rosen, Johanna, Sheptyakov, Denis, Evans, Hayden A., Ritter, Clemens, Salman, Zaher, Bonfa, Pietro, Ouisse, Thierry, Barbier, Maxime, Rivin, Oleg, Keren, Amit
We report muon spin rotation ($\mu$SR) and neutron diffraction on the rare-earth based magnets (Mo$_{2/3}$RE$_{1/3}$)$_2$AlC, also predicted as parent materials for 2D derivatives, where RE = Nd, Gd (only ($\mu$SR), Tb, Dy, Ho and Er. By crossing inf
Externí odkaz:
http://arxiv.org/abs/2105.14555
Publikováno v:
Phys. Rev. Materials 5, 124407 (2021)
We present a detailed study of the electronic and magnetic interactions of Ba2CoO4, structurally very uncommon because of the isolated CoO4 distorted tetrahedral coordination. We show the presence of Co(d)-O(p) hybridized states characterized by spin
Externí odkaz:
http://arxiv.org/abs/2105.06437