activity
19992026
most citedQuantum skyrmions and the destruction of long-range antiferromagnetic order in the high-Tc superconductors La(2-x)Sr(x)CuO(4) and YBa(2)Cu(3)O(6+x)

30 citations · 72 across the 12 of their papers we have counts for

collaborators

12 papers

cond-mat.mes-hall2026

Surface lone-pair polarization probed by quantum-geometric transport in tellurium

Nathanael N. Batista, Wendel S. Paz, Manuel Suárez-Rodríguez +10

Stereochemically active lone pairs are ubiquitous microscopic sources of polarity in molecules and solids, but their collective behavior in crystals is often hidden by symmetry or…

cond-mat.mes-hall2025

Gate-Tunable Giant Negative Magnetoresistance in Tellurene Driven by Quantum Geometry

Marcello B. Silva Neto, Chang Niu, Marcus V. O. Moutinho +5

Negative magnetoresistance in conventional two-dimensional electron gases is a well-known phenomenon, but its origin in complex and topological materials, especially those endowed…

cond-mat.mes-hall2024

Magnetic control of Weyl nodes and wave packets in three-dimensional warped semimetals

Bruno Focassio, Gabriel R. Schleder, Adalberto Fazzio +5

We investigate the topological phase transitions driven by band warping and a transverse magnetic field, for three-dimensional Weyl semimetals. First, we use the Chern number as a…

cond-mat.mes-hall2023★ 6 cited

Structure-driven phase transitions in paracrystalline topological insulators

Victor Regis, Victor Velasco, Marcello B. Silva Neto +1

We study phase transitions driven by structural disorder in noncrystalline topological insulators. We introduce a procedural generation algorithm, the Perlin noise, typically used…

cond-mat.supr-con2023

Gap fluctuations, Cooper pairs with finite center-of-mass momentum, and suppression of superconductivity in inhomogeneous systems with dopant superpuddles agglomerates

Victor Velasco, Marcello B. Silva Neto

Spatially extended aggregates of dopants are ubiquitous in a plethora of granular superconductors, forming a droplet network that is very important to their characterization and to…

cond-mat.supr-con2021★ 1 cited

Correlation of strontium anharmonicity with charge-lattice dynamics of the apical oxygens and their coupling to cuprate superconductivity

Steven D. Conradson, Victor Velasco, Marcello B. Silva Neto +12

Cu K edge X-ray absorption spectra of overdoped superconducting and show a remarkably strong correlation of their superconductivit…

cond-mat.supr-con2021★ 14 cited

Kuramoto synchronization of quantum tunneling polarons for describing the dynamic structure in cuprate superconductors

Victor Velasco, Marcello B. Silva Neto, Andrea Perali +3

A major open topic in cuprates is the interplay between the lattice and electronic dynamics and the importance of their coupling to the mechanism of high-temperature superconductiv…

cond-mat.str-el2002★ 4 cited

Metallic Continuum Quantum Ferromagnets at Finite Temperature

Antonio H. Castro Neto, Marcello B. Silva Neto

We study via renormalization group (RG) and large N methods the problem of continuum SU(N) quantum Heisenberg ferromagnets (QHF) coupled to gapless electrons. We establish the phas…

cond-mat.supr-con2001★ 11 cited

Charge pairing, superconducting transition and supersymmetry in high-temperature cuprate superconductors

Eduardo C. Marino, Marcello B. Silva Neto

We propose a model for high-T superconductors, valid for , that includes both the spin fluctuations of the Cu magnetic ions and of the O doped…

cond-mat.str-el2000★ 30 cited

Quantum skyrmions and the destruction of long-range antiferromagnetic order in the high-Tc superconductors La(2-x)Sr(x)CuO(4) and YBa(2)Cu(3)O(6+x)

Eduardo C. Marino, Marcello B. Silva Neto

We study the destruction of the antiferromagnetic order in the high-Tc superconductors La(2-x)Sr(x)CuO(4) and YBa(2)Cu(3)O(6+x) in the framework of the CP1-nonlinear sigma model fo…

cond-mat.str-el2000★ 1 cited

Sublattice Magnetization and Néel Transition in the 2D Quantum Heisenberg Antiferromagnet

Eduardo C. Marino, Marcello B. Silva Neto

We present an analytic expression for the finite temperature sublattice magnetization, at the Josephson scale, in two dimensional quantum antiferromagnets with short range Néel ord…

cond-mat.str-el1999★ 5 cited

Effective Sublattice Magnetization and Neel Temperature in Quantum Antiferromagnets

Eduardo C. Marino, Marcello B. Silva Neto

We present an analytic expression for the finite temperature effective sublattice magnetization which would be detected by inelastic neutron scattering experiments performed on a t…