Results 51 to 60 of about 101,409 (215)

Thermal Fluctuations of the superconducting order parameter in the Ginzburg-Landau theory [PDF]

open access: yes, 2022
This thesis briefly explains the role of thermal fluctuations in the Ginzburg-Landau theory of superconductivity. We firstly explain the phenomenological aspects of superconductivity, then we describe the Ginzburg-Landau theory of superconductivity, with
Zuliani, Davide
core  

Magnetoelectric Nanoparticle‐Based Wireless Brain–Computer Interface: Underlying Physics and Projected Technology Pathway

open access: yesAdvanced Science, EarlyView.
Magnetoelectric nanoparticles (MENPs) enable fully wireless, minutely invasive neuromodulation, and potentially neural recording, by converting magnetic into electric and, conversely, electric into magnetic fields, respectively, at high spatiotemporal resolution.
Elric Zhang   +14 more
wiley   +1 more source

Robust a priori and a posteriori error analysis for the approximation of Allen–Cahn and Ginzburg–Landau equations past topological changes [PDF]

open access: yes, 2010
A priori and a posteriori error estimates are derived for the numerical approximation of scalar and complex valued phase field models. Particular attention is devoted to the dependence of the estimates on a small parameter and to the validity of the ...
Rüdiger Müller   +11 more
core   +1 more source

An equation for the limit state of a superconductor with pinning sites

open access: yesElectronic Journal of Differential Equations, 2005
We study the limit state of the inhomogeneous Ginzburg-Landau model as the Ginzburg-Landau parameter $kappa=1/epsilono infty$, and derive an equation to describe the limit state.
Jianzhong Sun
doaj  

Emergent Magnetism, Heavy Electrons, and Pressure‐Induced Reentrant Superconductivity in the Iron Substituted 4d Transition‐Metal Sulfides

open access: yesAdvanced Science, EarlyView.
This work illustrates that magnetic Fe substitution enables systematic modulation of physical properties of the putative unconventional superconductor Rh17S15. Iron doping uncovers delicate competition between weak ferromagnetism, spin‐glass states, heavy‐fermion signatures, and superconductivity.
Yalei Huang   +18 more
wiley   +1 more source

High Upper Critical Field and Type II Superconductivity in Epitaxial Cubic W2N Thin Films

open access: yesAdvanced Science, EarlyView.
Superconducting thin films of stoichiometric W2N demonstrate a high upper critical field (Hc2) of ∼ 8.5 T, uncommon among binary transition metal nitrides. This robust superconducting response under high magnetic fields highlights the technological relevance of W2N for superconducting applications, e.g., integrated quantum and cryogenic electronics ...
Aditya Singh   +7 more
wiley   +1 more source

Fermion-induced quantum critical points

open access: yesNature Communications, 2017
Quantum phase transitions are governed by Landau-Ginzburg theory and the exceptions are rare. Here, Li et al. propose a type of Landau-forbidden quantum critical points induced by gapless fermions in two-dimensional Dirac semimetals.
Zi-Xiang Li   +3 more
doaj   +1 more source

Fenómeno de transporte en superconductores: vórtices cinemáticos

open access: yesIteckne, 2017
La teoría fenomenológica Ginzburg-Landau (FGLT) es una fuerte herramienta para entender la física de los materiales superconductores a temperaturas críticas en presencia de campos magnéticos y corrientes aplicadas.
José José Barba-Ortega   +2 more
doaj   +1 more source

Variational reduction for Ginzburg–Landau vortices

open access: yesJournal of Functional Analysis, 2006
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Pino Manresa, Manuel del   +2 more
openaire   +6 more sources

Controllable Superconductivity in Suspended NbSe2

open access: yesAdvanced Electronic Materials, EarlyView.
Suspended NbSe2${\rm NbSe}_2$ provides two complementary routes for controlling superconducting transport. Gate‐driven deformation strains the suspended crystal and tunes its critical temperature and current. Weak thermal anchoring enhances thermal feedback, contributing to multistep hysteresis and negative differential resistance.
Ruihuan Fang   +14 more
wiley   +1 more source

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