42 citations · 61 across the 10 of their papers we have counts for
10 papers
Superconductivity in twisted bismuth bilayers
Isaías Rodríguez, Renela María Valladares, David Hinojosa-Romero +2
First-principles calculations for two twisted bismuth bilayers, each with 120 atoms, were studied by means of the electronic density of states and vibrational density of states. Me…
Amorphous Boron Nitride: Ab initio Study of its vibrational properties
David Hinojosa-Romero, Alexander Valladares, Renela M. Valladares +2
Boron nitride (BN) is a structurally versatile insulator since it can be found in several crystalline structures with interesting mechanical and electrical properties, making this…
Could Negative Pressures Turn Bismuth into a Metal? The Case of the Expanded
Flor B. Quiroga, David Hinojosa-Romero, Alexander Valladares +3
Materials may behave in non-expected ways when subject to unexpected conditions. For example, when Bi was turned into an amorphous phase (\textit{a}-Bi) unexpectedly it became a su…
Nanomagnetism in porous amorphous palladium, a sequel. A possible light-weight magnet
Isaías Rodríguez, Renela María Valladares, David Hinojosa-Romero +2
Magnetism is a very relevant subject that permeates our everyday lives. However, magnetism keeps taking us from surprise to surprise which seems to indicate that it is a phenomenon…
\textit{Ab initio} Studies of Magnetism and Topology in solid Pd-rich a-PdSi Alloys
Isaías Rodríguez, Renela M. Valladares, Alexander Valladares +2
In 1965 Duwez \textit{et al.} reported having generated an amorphous, stable phase of palladium-silicon in the region 15 to 23 atomic percent (at. \%) silicon. These pioneering eff…
Superconductivity versus magnetism in the palladium 'ides': Pd(H/D/T)
Isaías Rodríguez, Renela M. Valladares, Alexander Valladares +2
In general, conventional superconductivity and magnetism are competing phenomena. In some alloys this competition is a function of the concentration of the elements. Here we show t…
Emergence of magnetism in bulk amorphous palladium
Isaías Rodríguez, Renela M. Valladares, David Hinojosa-Romero +2
Magnetism in palladium has been the subject of much work and speculation. Bulk crystalline palladium is paramagnetic with a high magnetic susceptibility. Palladium under pressure a…
Possible superconductivity in Bismuth (111) bilayers. Its electronic and vibrational properties from first principles
David Hinojosa-Romero, Isaías Rodríguez, Alexander Valladares +2
Using a 72-atom supercell we report ab initio calculations of the electronic and vibrational densities of states for the bismuth (111) bilayers (bismuthene) with periodic boundary…
Compressed Crystalline Bismuth and Superconductivity-An ab initio computational Simulation
David Hinojosa-Romero, Isaías Rodríguez, Zaahel Mata-Pinzón +3
Bismuth displays puzzling superconducting properties. In its crystalline equilibrium phase, it does not seem to superconduct at accessible low temperatures. However, in the amorpho…
Characterization of large area photomutipliers under low magnetic fields: design and performances of the magnetic shielding for the Double Chooz neutrino experiment
E. Calvo, M. Cerrada, C. Fernández-Bedoya +5
This paper describes the characterization studies under low magnetic fields of the Hamamatsu R7081 photomultipliers that are being used in the Double Chooz experiment. The design a…