42 citations · 161 across the 9 of their papers we have counts for
9 papers
Critical behavior of the classical spin-1 Ising model: a combined low-temperature series expansion and Metropolis Monte Carlo analysis
Amir Taheridehkordi, Roberto Zivieri
In this paper, we theoretically study the critical properties of the classical spin-1 Ising model using two approaches: 1) the analytical low-temperature series expansion and 2) th…
Configurational entropy of magnetic skyrmions as an ideal gas
R. Zivieri, R. Tomasello, O. Chubykalo-Fesenko +3
The study of thermodynamics of topological defects is an important challenge to understand their underlying physics. Among them, magnetic skyrmions have a leading role for their ph…
Micromagnetic understanding of the skyrmion Hall angle current dependence in perpendicular magnetized ferromagnets
Riccardo Tomasello, Anna Giordano, Stefano Chiappini +9
The understanding of the dynamical properties of skyrmion is a fundamental aspect for the realization of a competitive skyrmion based technology beyond CMOS. Most of the theoretica…
Theory of nonreciprocal spin waves excitation in spin-Hall oscillators with Dzyaloshinkii-Moriya interaction
R. Zivieri, A. Giordano, R. Verba +4
A two-dimensional analytical model for the description of the excitation of nonreciprocal spin waves by spin current in spin-Hall oscillators in the presence of the interfacial Dzy…
Spin-wave dynamics in Permalloy/Cobalt magnonic crystals in the presence of a non-magnetic spacer
P. Malago, L. Giovannini, R. Zivieri +2
In this paper, we theoretically study the influence of a non-magnetic spacer between ferromagnetic dots and ferromagnetic matrix on the frequency dispersion of the spin wave excita…
Spin-Hall nano-oscillator with oblique magnetization and Dzyaloshinskii-Moriya interaction as generator of skyrmions and nonreciprocal spin-waves
A. Giordano, R. Verba, R. Zivieri +9
Spin-Hall oscillators are promising sources of spin-wave signals for magnonics applications, and can serve as building blocks for magnonic logic in ultralow power computation devic…
Topological, non topological and instanton droplets driven by spin-transfer torque in materials with perpendicular magnetic anisotropy and Dzyaloshinskii-Moriya Interaction
Mario Carpentieri, Riccardo Tomasello, Roberto Zivieri +1
The interfacial Dzyaloshinskii-Moriya Interaction can modify the topology of droplets excited by a localized spin-polarized current. Here, we show that, in addition to the stationa…
A strategy for the design of skyrmion racetrack memories
R. Tomasello, E. Martinez, R. Zivieri +3
Magnetic storage based on racetrack memory is very promising for the design of ultra-dense, low-cost and low-power storage technology. Information can be coded in a magnetic region…
Combined frequency-amplitude nonlinear modulation: theory and applications
G. Consolo, V. Puliafito, G. Finocchio +6
In this work we formulate a generalized theoretical model to describe the nonlinear dynamics observed in combined frequency-amplitude modulators whose characteristic parameters exh…