95 citations · 281 across the 15 of their papers we have counts for
15 papers
Multiband superconductors with degenerate excitation gaps
Paulo J. F. Cavalcanti, Tiago T. Saraiva, J. Albino Aguiar +3
There is a tacit assumption that multiband superconductors are essentially the same as multigap superconductors. More precisely, it is usually assumed that the number of excitation…
Vortex interaction in thin films -- a crossover from type I to type II superconductivity
W. Y. Córdoba-Camacho, A. Vagov, A. A. Shanenko +3
Interactions between vortices in thin superconducting films are investigated in the crossover (intertype) regime between superconductivity types I and II. We consider two main fact…
Anisotropic Superconductors Between Types I and II
T. T. Saraiva, A. Vagov, V. M. Axt +2
Self-duality or matching between the magnetic and condensate characteristic lengths is a fundamental property of isotropic superconductors at the critical Bogomolnyi point (B-point…
Spontaneous Pattern Formation in Intertype Superconducting Films
W. Y. Córdoba-Camacho, R. M. da Silva, A. A. Shanenko +4
Thin superconducting films are usually regarded as type II superconductors even when they are made of a type I material. The reason is a strong contribution of the stray magnetic f…
Screening of pair fluctuations in superconductors with coupled shallow and deep bands: a route to higher temperature superconductivity
L. Salasnich, A. A. Shanenko, A. Vagov +2
A combination of strong Cooper pairing and weak superconducting fluctuations is crucial to achieve and stabilize high-Tc superconductivity. We demonstrate that a coexistence of a s…
The BCS-BEC crossover induced by a shallow band: Pushing standard superconductivity types apart
S. Wolf, A. Vagov, A. A. Shanenko +3
It is well-known that the appearance of almost-empty (shallow) conduction bands in solids strongly affects their superconducting properties. In a shallow band charge carriers are d…
Shallow-band superconductors: pushing superconductivity types apart
S. Wolf, A. Vagov, A. A. Shanenko +2
Magnetic response is a fundamental property of superconducting materials, which helps to distinguish two superconductivity types: the ideally diamagnetic type I and type II, which…
Giant paramagnetic Meissner effect in multiband superconductors
R. M. da Silva, M. V. Milosevic, A. A. Shanenko +2
Superconductors, ideally diamagnetic when in the Meissner state, can also exhibit paramagnetic behavior due to trapped magnetic flux. In the absence of pinning such paramagnetic re…
Distinct magnetic signatures of fractional vortex configurations in multiband superconductors
R. M. da Silva, M. V. Milošević, D. Domínguez +2
Vortices carrying fractions of a flux quantum are predicted to exist in multiband superconductors, where vortex core can split between multiple band-specific components of the supe…
Magnetic dilution on LaCrO
Romualdo S. Silva, Petrucio Barrozo, N. O. Moreno +1
In this work, we study the effect of the magnetic dilution of Cr on the LaCrO half doped with Al. Pure and half-doped samples were prepared by combustion method using ur…
Ruthenium-Europium configuration in the Eu2Ru2O7 pyrochlore
S. Muñoz Pérez, R. Cobas, J. M. Cadogan +3
The magnetic and electronic properties of Eu2Ru2O7 are discussed in terms of the local ruthenium and europium coordinations, electronic band structure calculations and molecular or…
Magnetic, electrical and structural properties of the new Re-doped ruthenocuprate Ru1-xRexSr2GdCu2Oy
L. T. Corredor, J. Albino Aguiar, D. A. Landínez Téllez +3
Despite the discovery of new superconductors classes, high-Tc oxides continue to be a current topic, because of their complex phase diagrams and doping-dependant effects (allowing…
Interfacial Ferromagnetism in LaNiO3/CaMnO3 Superlattices
A. J. Grutter, H. Yang, B. J. Kirby +8
We observe interfacial ferromagnetism in superlattices of the paramagnetic metal LaNiO3 and the antiferromagnetic insulator CaMnO3. LaNiO3 exhibits a thickness dependent metal-insu…
Vortex configurations and metastability in mesoscopic superconductors
Clécio C. de Souza Silva, Leonardo R. E. Cabral, J. Albino Aguiar
The vortex dynamics in mesoscopic superconducting cylinders with rectangular cross section under an axially applied magnetic field is investigated in the multivortex London regime.…
Vortices in superconducting strips: interplay between surface effects and the pinning landscape
Clécio C. de Souza Silva, Leonardo R. E. Cabral, J. Albino Aguiar
Vortices in a narrow superconducting strip with a square array of pinning sites are studied. The interactions of vortices with other vortices and with external sources (applied mag…