58 citations · 132 across the 17 of their papers we have counts for
18 papers
A few remarks on hyperstatistics and some applications
Lucas Squillante, Samuel M. Soares, Guilherme Lepski +1
In a recent paper [arXiv:2604.24783 (2026)], we have proposed a general approach to treat systems with inherent non-Boltzmann-Gibbsian behaviour. Given the extremely high accuracy…
Hyperstatistics
Lucas Squillante, Samuel M. Soares, Constantino Tsallis +1
We propose a general approach, named by us hyperstatistics, to treat complex systems, in which Boltzmann-Gibbs statistics breaks down at the domain level of the system. Hyperstatis…
Universal and non-universal facets of quantum critical phenomena unveiled along the Schmidt decomposition theorem
Samuel M. Soares, Lucas Squillante, Henrique S. Lima +2
Critical phenomena have been extensively investigated both theoretically and experimentally in many fields, such as condensed matter physics, biology, e.g., brain criticality, and…
Magnetostriction as the origin of the magnetodielectric effect in La2CoMnO6
M. Boldrin, A. Bagri, D. Barlettani +12
The La2CoMnO6 (LCMO) perovskite has received a lot of attention due to its near room temperature magnetodielectric effect. Despite the recent efforts, the mechanism ruling the corr…
Impact of Broken Inversion Symmetry on Molecular States in multi-Weyl fermions
W. C. Silva, J. E. Sanches, D. S. Rojo +6
We study inversion-symmetry (IS) breaking in impurity dimers coupled to topological multi-Weyl systems in the low-energy dispersion domain. In the IS-preserved multi-Weyl semimetal…
The Grüneisen parameter applied to critical phenomena and experimental investigations of correlated phenomena in molecular conductors
Lucas Squillante
In this Ph.D. Thesis, a systematic review is performed on the derivation and generalization of the Grüneisen parameter followed by its unprecedented applications to several distinc…
Unveiling the interdisciplinary character of negative pressure
Francisco F. Barbosa, Lucas Squillante, Luciano Ricco +3
We explore the concept of negative pressure and its relevance in a variety of physical contexts: the expansion of the universe, mixture theory, cavitation, and the capillary effect…
Higgs-like stiffness and fractons on the verge of phase transitions
Lucas Squillante, Antonio C. Seridonio, Roberto E. Lagos-Monaco +1
In condensed matter Physics, massive longitudinal Higgs modes emerge from fluctuations of the order parameter. A few years ago, the Higgs mode was \emph{caught} experimentally in t…
Cellular Griffiths-like phase
Lucas Squillante, Isys F. Mello, Luciano S. Ricco +5
Protein compartmentalization in the frame of a liquid-liquid phase separation is a key mechanism to optimize spatiotemporal control of biological systems. Such a compartmentalizati…
Exploring the expansion of the universe using the Grüneisen parameter
Lucas Squillante, Gabriel O. Gomes, Isys F. Mello +4
For a perfect fluid, pressure and energy density are related via the equation of state (EOS) , where is the EOS parameter, being its interpretation usually cons…
Universally non-diverging Grüneisen parameter at critical points
Samuel M. Soares, Lucas Squillante, Henrique S. Lima +2
According to Boltzmann-Gibbs (BG) statistical mechanics, the thermodynamic response, such as the isothermal susceptibility, at critical points (CPs) presents a divergent-like behav…
Grüneisen parameter as an entanglement compass and the breakdown of the Hellmann-Feynman theorem
Lucas Squillante, Luciano S. Ricco, Aniekan Magnus Ukpong +3
The Grüneisen ratio , i.e., the singular part of the ratio of thermal expansion to the specific heat, has been broadly employed to explore both finite- and quantum critical p…
Unveiling the Physics of the Mutual Interactions in Paramagnets
Lucas Squillante, Isys F. Mello, Gabriel O. Gomes +4
In real paramagnets, there is always a subtle many-body contribution to the system's energy, which can be regarded as a small effective local magnetic field . Usually, it…
Giant caloric effects close to critical end point
Lucas Squillante, Isys F. Mello, A. C. Seridonio +1
The electrocaloric effect (ECE), i.e., the reversible temperature change due to the adiabatic variation of the electric field, is of great interest due to its potential technologic…
Griffiths-like phase close to the Mott transition
Isys F. Mello, Lucas Squillante, Gabriel O. Gomes +2
We explore the coexistence region in the vicinity of the Mott critical end point employing a compressible cell spin- Ising-like model. We analyze the case for the spin-liquid…
Epidemics, the Ising-model and percolation theory: a comprehensive review focussed on Covid-19
Isys F. Mello, Lucas Squillante, Gabriel O. Gomes +2
We revisit well-established concepts of epidemiology, the Ising-model, and percolation theory. Also, we employ a spin = 1/2 Ising-like model and a (logistic) Fermi-Dirac-like f…
The Magnetic Grüneisen Parameter for Model Systems
Gabriel Gomes, Lucas Squillante, A. C. Seridonio +3
The magneto-caloric effect (MCE), which is the refrigeration based on the variation of the magnetic entropy, is of great interest in both technological applications and fundamental…
Probing the Ionic Dielectric Constant Contribution in the Ferroelectric Phase of the Fabre-Salts
Mariano de Souza, Lucas Squillante, Cesar Sônego +3
In strongly correlated organic materials it has been pointed out that charge-ordering could also achieve electronic ferroelectricity at the same critical temperature . A pr…