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Vortex lattice mobility and effective pinning potentials in the peak effect region in YBCO crystals
(Indian Academy of Sciences, 2006-12)
The peak effect (PE) in the critical current density in both low and high temperature superconductors has been the subject of a large amount of experimental and theoretical work in the last few/several years. In the case ...
Peak effect in YBCO crystals: Statics and dynamics of the vortex lattice
(IOP Publishing, 2006-12)
The oscillatory dynamics and quasi-static Campbell regime of the vortex lattice (VL) in twinned YBa2Cu3O7 single crystals have been explored at low fields near the peak effect (PE) region by linear and non-linear ac ...
Experimental and theoretical analysis of the intensity of beams diffracted by three-dimensional photonic crystals
(American Physical Society, 2008-12)
An analysis of the diffracted beams emerging from three-dimensional photonic crystals is herein presented. The wave vectors of nonspecular beams are calculated for a triangular two-dimensional lattice and the change in ...
Intermediate valence behaviour in the new Kondo lattice compound Yb3Ni5Al19
(IOP Publishing, 2004-06)
The physical properties of single crystals of the Kondo lattice material Yb3Ni5Al19 have been investigated by means of magnetic susceptibility, specific heat, and electrical resistivity measurements. Single-crystal x-ray ...
Composite spin crystal phase in antiferromagnetic chiral magnets
(American Physical Society, 2017-07)
We study the classical antiferromagnetic Heisenberg model on the triangular lattice with Dzyaloshinskii-Moriya interactions in a magnetic field. We focus in particular on the emergence of a composite spin crystal phase, ...
Quantum phases in the frustrated Heisenberg model on the bilayer honeycomb lattice
(American Physical Society, 2014-01)
We use a combination of analytical and numerical techniques to study the phase diagram of the frustrated Heisenberg model on the bilayer honeycomb lattice. Using the Schwinger-boson description of the spin operators followed ...
Memory effects and peak effect in type II superconductors
(Elsevier Science, 2007-09)
A large amount of experimental and theoretical work has been devoted to understand memory effects (ME) in the solid vortex lattice (VL) but has remained, however, controversial until now. In the vicinity of the anomaly ...
Oscillatory dynamics of a superconductor vortex lattice in high amplitude ac magnetic fields
(American Physical Society, 2005-12)
We study by ac susceptibility measurements the evolution of the solid vortex lattice mobility under oscillating forces. It has already been shown that in YBCO single crystals, below the melting transition, a temporarily ...
Magnetic and transport signatures of Rashba spin-orbit coupling on the ferromagnetic Kondo lattice model in two dimensions
(American Physical Society, 2014-08)
Motivated by emergent phenomena at oxide surfaces and interfaces, particularly those involving transition metal oxides with perovskite crystal structure such as LaTiO3/SrTiO3, we examine the ferromagnetic Kondo lattice ...
Topology design of 2D and 3D elastic material microarchitectures with crystal symmetries displaying isotropic properties close to their theoretical limits
(Elsevier, 2019-11)
This paper evaluates the effect that different imposed crystal symmetries have on the topology design of two-phase isotropic elastic composites ruled by the target of attaining extreme theoretical properties. Extreme ...