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8 papers · 2 filters
Barkhausen-type noise in the resistance of antiferromagnetic Cr thin films
L. Tosi, E. Osquiguil, E. E. Kaul +1
We present an experimental study of the changes generated on the electrical resistance of epitaxial Cr thin films by the transformation of quantized spin density wave domain…
Effects of spin density wave quantization on the electrical transport in epitaxial Cr thin films
E. Osquiguil, E. E. Kaul, L. Tosi +1
We present measurements of the electrical resistivity, , in epitaxial Cr films of different thicknesses grown on MgO (100) substrates, as a function of temperature, . The $ρ(…
Mechanism to Generate a Two-Dimensional Electron Gas at the Surface of the Charge-Ordered Semiconductor BaBiO3
Verónica Vildosola, Francisco Güller, Ana M. Llois
In this work, we find by means of first principle calculations a new physical mechanism to generate a two dimensional electron gas, namely, the breaking of charge ordering at the s…
Neutron diffraction study of stability and phase transitions in Cu-Sn-In alloys as alternative Pb-free solders
G. Aurelio, S. A. Sommadossi, G. J. Cuello
In this work we present an experimental study of structure and phase stability in ternary Cu-Sn-In alloys around 55 at.% Cu in the temperature range 100^{\circ}C < T < 550^{\circ}C…
Importance of correlation effects in hcp iron revealed by a pressure-induced electronic topological transition
K. Glazyrin, L. V. Pourovskii, L. Dubrovinsky +17
We discover that hcp phases of Fe and Fe0.9Ni0.1 undergo an electronic topological transition at pressures of about 40 GPa. This topological change of the Fermi surface manifests i…
Crystal structure of Cu-Sn-In alloys around the η phase field studied by neutron diffraction
Gabriela Aurelio, Silvana A Sommadossi, Gabriel J Cuello
The study of the Cu-Sn-In ternary system has become of great importance in recent years, due to new environmental regulations forcing to eliminate the use of Pb in bonding technolo…