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48 papers · 1 filter
Ferromagnetic Resonance Linewidths in Ultrathin Structures: Theoretical Studies of Spin Pumping
A. T. Costa, R. B. Muniz, D. L. Mills
We present theoretical studies of the spin pumping contribution to the ferromagnetic resonance linewidth for various ultrathin film ferromagnetic structures. We consider the isolat…
Linking entanglement and quantum phase transitions via density functional theory
L. -A. Wu, M. S. Sarandy, D. A. Lidar +1
Density functional theory (DFT) is shown to provide a novel conceptual and computational framework for entanglement in interacting many-body quantum systems. DFT can, in particular…
Lower critical field and intragrain critical current density in the ruthenate-cuprate RuSrGdCeCuO
M. G. das Virgens, S. García, L. Ghivelder
The lower critical field of the grains, , and the intragrain critical current density, , were determined for the superconducting ruthenate-cuprate RuSrGd$_{1.5…
Structure of exotic three-body systems
T. Frederico, M. T. Yamashita, A. Delfino +1
The classification of large halos formed by two identical particles and a core is systematically addressed according to interparticle distances. The root-mean-square distances betw…
Polydisperse chains placed on a one-dimensional lattice
Jurgen F. Stilck, Minos A. Neta, Wellington G. Dantas
Using a transfer matrix technique, we calculate the entropy of polydisperse chains placed on a one-dimensional lattice, as a function of the density of internal and endpoint monome…
Formal classification of unipotent parameterized diffeomorphisms
Javier Ribón
We provide a complete system of invariants for the formal classification of complex analytic unipotent germs of diffeomorphism at $\cn{n}$ fixing the orbits of a regular vector fie…