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Benfica, J., B. Green, B. C. Porcher, L. Bolzani Poehls, F. Vargas, N. H. Medina, N. Added, V. A. P. de Aguiar, E. L. A. Macchione, F. Aguirre et al. "Analysis of SRAM-Based FPGA SEU Sensitivity to Combined EMI and TID-Imprinted Effects." IEEE Transactions on Nuclear Science 63 (2016): 1294.
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Cejas Bolecek, N. R., A. B. Kolton, M. Konczykowski, H. Pastoriza, D. Dominguez, and Y. Fasano. "Vortex matter freezing in Bi2Sr2CaCu28 samples with a very dense distribution of columnar defects." Physical Review B 93, no. 5 (2016): 054505.
Abstract: We show that the dynamical freezing of vortex structures nucleated at diluted densities in Bi2Sr2CaCu2O8 samples with a dense distribution of columnar defects, B∼10−2BΦ with BΦ=5kG, results in configurations with liquidlike correlations. We propose a freezing model considering a relaxation dynamics dominated by double-kink excitations driven by the local stresses obtained directly from experimental images. With this model we estimate the relaxation barrier and the freezing temperature. We argue that the low-field frozen vortex structures nucleated in a dense distribution of columnar defects thus correspond to an out-of-equilibrium nonentangled liquid with strongly reduced mobility rather than to a snapshot of a metastable state with divergent activation barriers as, for instance, expected for the Bose-glass phase at equilibrium.
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Correa, V. F., D. Betancourth, J. G. Sereni, N. Caroca-Canales, and C. Geibel. "Remarkable magnetostructural coupling around the magnetic transition in CeCo0.85Fe0.15Si." Journal of Physics: Condensed Matter 28, no. 34 (2016): 346003.
Abstract: We report a detailed study of the magnetic properties of CeCo0.85Fe0.15Si under high magnetic
fields (up to 16 Tesla) measuring different physical properties such as specific heat, magnetization,
electrical resistivity, thermal expansion and magnetostriction. CeCo0.85Fe0.15Si becomes
antiferromagnetic at TN 6.7 K. However, a broad tail (onset at TX 13 K) in the specific heat
precedes that second order transition. This tail is also observed in the temperature derivative of
the resistivity. However, it is particularly noticeable in the thermal expansion coefficient where it
takes the form of a large bump centered at TX. A high magnetic field practically washes out that tail
in the resistivity. But surprisingly, the bump in the thermal expansion coefficient becomes a well
pronounced peak fully split from the magnetic transition at TN. Concurrently, the magnetoresistance
also switches from negative to positive above TN. The magnetostriction is considerable and
irreversible at low temperature ( (16 T) 4×10− L
L
4 at 2 K) when the magnetic interactions
dominate. A broad jump in the field dependence of the magnetostriction observed at low T may be
the signature of a weak ongoing metamagnetic transition. Taking altogether the results indicate the
importance of the lattice effects on the development of the magnetic order in these alloys.
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del Corro, P. G., M. Imboden, D. J. Bishop, and H. Pastoriza. "Comb Drive Designs With Minimized Levitation." Journal of Microelectromechanical Systems 25, no. 6 (2016): 1025–1032.
Abstract: This paper presents two capacitive comb drive
designs for electrostatic actuation of MEMS with the aim to
eliminate the levitation effect often observed in such systems.
By placing a shield over the comb drive fingers, it is possible
to balance the electric field and suppress vertical forces while
maintaining the desired lateral motion. By optimizing the comb
geometry, we demonstrate that our approach is able to reduce the
levitation by an order of magnitude and unwanted coupling of
motion from out-of-plane to in-plane by a factor of 7 compared
with standard comb architectures fabricated using PolyMUMPs
technology, without the need of alternating comb finger polarities
or additional control electrodes. Levitation was reduced to
160 nm, for 3.6-µm lateral displacement at a driving voltage
of 80 V.
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Dellavale, D., and J. M. Roselló. "Cross-frequency coupling and phase synchronization in nonlinear acoustics." Proceedings of Meetings on Acoustics 28 (2016): 055001.
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Domenichini, P., Condó, A. M., Haberkorn, N. "Structural characterization of FeePd nanowires grown by electrodeposition using an acid electrolyte." Materials Chemistry and Physics 177 (2016): 164–170.
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Domenichini, P., A. M. Condó, F. Soldera, M. Sirena, and N. Haberkorn. "Influence of the microstructure on the resulting 18R martensitic transformation of polycrystalline Cu––Al––Zn thin films obtained by sputtering and reactive annealing." Materials Characterization 114 (2016): 289.
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Facio, J. I., D. Betancourth, N. R. Cejas Bolecek, G. A. Jorge, P. Pedrazzini, V. F. Correa, P. S. Cornaglia, V. Vildosola, and García D.J. "Lattice specific heat for the RMIn5 (R=Gd, La,Y; M=Co, Rh) compounds: Non-magnetic contribution subtraction." Journal of Magnetism and Magnetic Materials 407 (2016): 406–4011.
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Franco, D. G., A. Sarmiento-Chavez, N. Schenone, A. E. L. Allcca, M. G. Berisso, Y. Fasano, and J. Guimpel. "Characterization of the Nb-B Superlattice System." Physica C: Superconductivity and its Applications 531 (2016): 93–97.
Abstract: Abstract
We study the growth, stacking and superconducting properties of Nb and B thin films and superlattices. The interest in these resides in their possible use in transition edge neutron sensors. The samples were grown by magnetron sputtering over Si (100) substrates. The X-ray diffraction patterns for all Nb containing samples show a Nb (110) preferential orientation. From the low-angle X-ray reflectivity we obtain information on the superlattice structure. The superconducting transition temperatures of the superlattices, obtained from the temperature dependence of the magnetization, are higher than those of single Nb films of similar thickness. The temperature dependence of the perpendicular and parallel upper critical fields indicate that the superlattices behave as an array of decoupled superconducting Nb layers.
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Haberkorn, N., Y. Coulter, A. M. Condó, P. Granell, F. Golmar, H. S. Ha, and S. H. Moon. "Vortex creep and critical current densities Jc in a 2μm thick SmBa2Cu3O7−d coated conductor with mixed pinning centers grown by co-evaporation." Superconductor Science and Technology 29 (2016): 075011.
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