Results 91 to 100 of about 6,538,230 (211)

GINZBURG-LANDAU THEORY OF SUPERCONDUCTORS WITH SHORT COHERENCE LENGTH [PDF]

open access: yes, 1997
We consider fermions in two dimensions with an attractive interaction in the singlet d-wave channel of arbitrary strength. By means of a Hubbard-Stratonovich transformation a statistical Ginzburg-Landau theory is derived, which describes the smooth ...
S. Stintzing, W. Zwerger
semanticscholar   +1 more source

Bridging Superconductors With United Nations Development Goals: Perspectives and Applications

open access: yesphysica status solidi (a), Volume 223, Issue 7, 7 April 2026.
Ceramic superconductors enable sustainable technologies. A bibliometric review of 33,756 publications (1980–2025) assesses their alignment with the UN Sustainable Development Goals. Key applications identified from include clean propulsion, efficient power grids, advanced medical imaging, and quantum computing, highlighting both their transformative ...
Edimar A. S. Duran   +9 more
wiley   +1 more source

Electrostatic Potential in High-Temperature Superconducting Cuprates: Extended Ginzburg-Landau Theory

open access: yesAdvances in Condensed Matter Physics, 2011
The electrostatic potential and the associated charge distribution in the vortices of high-𝑇𝑐 superconductors involving mixed symmetry state of the order parameters have been studied.
Madhuparna Karmakar
doaj   +1 more source

Strong coupling corrections to the Ginzburg-Landau theory of superfluid He3 [PDF]

open access: yes, 2007
In the Ginzburg-Landau theory of superfluid $^{3}\mathrm{He}$, the free energy is expressed as an expansion of invariants of a complex order parameter.
H. Choi   +4 more
semanticscholar   +1 more source

Why magnesium diboride is not described by anisotropic Ginzburg-Landau theory. [PDF]

open access: yesPhysical Review Letters, 2004
It is well established that the superconductivity in the recently discovered superconducting compound MgB2 resides in the quasi-two-dimensional band (sigma band) and three-dimensional band (pi band).
A. Koshelev, A. Golubov
semanticscholar   +1 more source

Triggered Ferroelectricity in HfO2 From Hybrid Phonons and Higher‐Order Dynamical Charges

open access: yesAdvanced Materials, Volume 38, Issue 19, 1 April 2026.
We combine first‐principles calculations, LGD theory and group theory to demonstrate the mechanism of hybrid‐triggered ferroelectricity in HfO2${\rm HfO}_2$, enabled by trilinear and quadlinear couplings between stable polar and nonpolar modes. HfO2${\rm HfO}_2$ hosts unconventional interplay between structure modes where substantial contribution to ...
Seongjoo Jung, Turan Birol
wiley   +1 more source

Advancing superconductivity research: Insights from numerical simulations of potassium fullerenide-60 and gold and with Ginzburg-Landau theory

open access: yesResults in Materials
There are many types of superconductors, including gold ormus and some fullerene derivatives. Gold can become a superconductor at extremely low temperatures (
Mohamad Hasson   +2 more
doaj   +1 more source

Superconductors with two critical temperatures

open access: yes, 2007
We propose a simple model for superconductors endowed with two critical temperatures, corresponding to two second-order phase transitions, in the framework of the Ginzburg-Landau mean-field theory. For very large Cooper pair self-interaction, in addition
Anderson   +9 more
core   +1 more source

Proximity Ferroelectricity in Compositionally Graded Structures

open access: yesAdvanced Electronic Materials, Volume 12, Issue 7, 6 April 2026.
We perform the finite element modeling of the polarization switching in the compositionally graded AlN‐Al1‐xScxN and ZnO‐Zn1‐xMgxO structures and reveal the switching of spontaneous polarization in the whole structure in all these systems. The coercive field to switch is significantly lower than the electric breakdown field of the unswitchable AlN and ...
Eugene A. Eliseev   +4 more
wiley   +1 more source

Materials Design Principles for Large Memory Windows: Coercive Voltage Engineering in Ferroelectric– Dielectric Heterostructures

open access: yesAdvanced Electronic Materials, Volume 12, Issue 8, 20 April 2026.
Coercive voltage enhancement in hafnia‐based ferroelectric–dielectric heterostructures is shown to originate from leakage‐governed voltage division between the ferroelectric and dielectric layers. Through experiments, circuit modeling, and defect‐based simulations, a universal framework is established to engineer large memory windows without altering ...
Prasanna Venkatesan   +21 more
wiley   +1 more source

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