252 citations · 493 across the 16 of their papers we have counts for
16 papers
Fundamental inequalities in the Stoner-Wohlfarth model
C. A. Iglesias, J. C. R. de Araujo, E. F. Silva +3
We report two fundamental inequalities in the Stoner-Wohlfarth model. Specifically, we investigate the theoretical limit for the initial magnetic susceptibility in a system describ…
Unambiguous signature of exchange interactions between nanoparticles in a collective system
C. A. Iglesias, J. C. R. de Araújo, J. Xavier +10
We report a simple, efficient manner to assess magnetic interactions, more specifically the exchange interaction, in systems as blocked magnetic nanoparticles. Specifically, we inv…
Force Correlations in Disordered Magnets
Cathelijne ter Burg, Felipe Bohn, Gianfranco Durin +2
We present a proof of principle for the validity of the functional renormalization group, by measuring the force correlations in Barkhausen-noise experiments. Our samples are soft…
Unraveling the role of the magnetic anisotropy on thermoelectric response: a theoretical and experimental approach
M. A. Correa, M. Gamino, A. S. de Melo +8
Magnetic anisotropies have key role to taylor magnetic behavior in ferromagnetic systems. Further, they are also essential elements to manipulate the thermoelectric response in Ano…
Specific loss power of magnetic nanoparticles (fluid) hyperthermia in non-adiabatic conditions
C. A. M. Iglesias, J. C. R. de Araújo, J. Xavier +12
We investigate the magnetic nanoparticles (fluid) hyperthermia in non-adiabatic conditions through the calorimetric method. Specifically, we propose a theoretical approach to magne…
Tailoring anomalous Nernst effect in stressed magnetostrictive film grown onto flexible substrate
Acacio Silveira Melo, Alexandre Barbosa de Oliveira, Carlos Chesman +3
The anomalous Nernst effect in nanostructured magnetic materials is a key phenomenon to optimally control and employ the internal energy dissipated in electronic devices, being dep…
Playing with universality classes of Barkhausen avalanches
Felipe Bohn, Gianfranco Durin, Marcio Assolin Correa +4
Many systems crackle, from earthquakes and financial market to Barkhausen effect in ferromagnetic materials. Despite the diversity in essence, the noise emitted in these dynamical…
Universality and the collapse of multifractality in Barkhausen avalanches
Gustavo Zampier dos Santos Lima, Gilberto Corso, Marcio Assolin Corrêa +3
Barkhausen effect in ferromagnetic materials provides an excellent area for investigating scaling phenomena found in disordered systems exhibiting crackling noise. The critical dyn…
ZrO tapes as an alternative low-cost flexible substrate to artificially nanostructured materials
M. A. Correa, M. R. Araujo, W. Acchar +1
We associate tape casting and magnetron sputtering techniques to engineer flexible nanostructures using ZrO green tape as substrate. We systematically investigate the structura…
Quantitative scaling of magnetic avalanches
G. Durin, F. Bohn, M. A. Correa +3
We provide the first quantitative comparison between Barkhausen-noise experiments and recent predictions from the theory of avalanches for pinned interfaces, both in and beyond mea…
Quantifying magnetic anisotropy dispersion: Theoretical and experimental study of the magnetic properties of anisotropic FeCuNbSiB ferromagnetic films
T. M. L. Alves, C. G. Bezerra, A. D. C. Viegas +3
The Stoner-Wohlfarth model is a traditional and efficient tool to calculate magnetization curves and it can provides further insights on the fundamental physics associated to the m…
Mechano-sysntesis and structural, magnetic and thermal characterization of -Fe nanoparticles embedded in a Wüstite matrix
S. O. S. Batista, M. A. Morales, W. C. dos Santos +5
Magnetic materials for specific applications require an accurate control and complete comprehension of their magnetic properties. In particular, nanoparticles embedded in a polycry…
Statistical properties of Barkhausen noise in amorphous ferromagnetic films
F. Bohn, M. A. Corrêa, M. Carara +3
We investigate the statistical properties of the Barkhausen noise in amorphous ferromagnetic films with thicknesses in the range between and nm. From Barkhausen noise…
Universal properties of magnetization dynamics in polycrystalline ferromagnetic films
Felipe Bohn, Marcio Assolin Correa, Alexandre Da Cas Viegas +3
We investigate the scaling behavior in the statistical properties of Barkhausen noise in ferromagnetic films. We apply the statistical treatment usually employed for bulk materials…
High frequency magnetic behavior through the magnetoimpedance effect in CoFeB/(Ta, Ag, Cu) multilayered ferromagnetic thin films
M. S. Marques, T. Mori, L. F. Schelp +3
We studied the dynamics of magnetization through an investigation of the magnetoimpedance effect in CoFeB/(Ta, Ag, Cu) multilayered thin films grown by magnetron sputtering. Impeda…
Beyond power laws: Universality in the average avalanche shape
Stefanos Papanikolaou, Felipe Bohn, Rubem L. Sommer +3
We report the measurement of multivariable scaling functions for the temporal average shape of Barkhausen noise avalanches, and show that they are consistent with the predictions o…