5 citations · 8 across the 14 of their papers we have counts for
14 papers
The structure of a melt: The case of liquid bismuth
Flor B. Quiroga, Isaías Rodríguez, David Hinojosa +3
Molecular Dynamics (MD) is performed on supercells of 216 atoms of bismuth, going from 300 K to 573 K in 100 steps and maintaining it in the liquid state, at 573 K, during 500 step…
Edge-Dependent Superconductivity in Twisted Bismuth Bilayers
Isaías Rodríguez, Renela M. Valladares, Alexander Valladares +3
Twisted bilayers offer a compelling and, at times, confounding platform for the engineering of new twistronic materials. Whereas standard studies almost exclusively focus on the ex…
The Low-Temperature Electronic Specific Heats of Disordered Ag-Au Alloys, Revisited
David Hinojosa-Romero, Renela María Valladares, Alexander Valladares +2
Disordered alloys of silver and gold have been in the interest of the condensed matter community for decades since they are the prototype of the ideal solid solution due to the che…
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…
Short-range Atomic Topology of Ab initio Generated Amorphous PdSi Alloys
Isaías Rodríguez-Aguirre, Renela M. Valladares, Alexander Valladares +2
Since the pioneering efforts of Duwez and coworkers in 1965, when a solid amorphous phase of Pd-Si (-PdSi) was obtained in the vicinity of the eutectic concentration, much work…
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…
A facile approach to calculating superconducting transition temperatures in the bismuth solid phases
Isaías Rodríguez, David Hinojosa-Romero, Alexander Valladares +2
All solid phases of bismuth under pressure, but one, have been experimentally found to superconduct. From Bi-I to Bi-V, avoiding Bi-IV, they become superconductors and perhaps Bi-I…
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…
Superconductivity in the solid phases of Bi. Is Bi-IV a superconductor?
Ariel A. Valladares, Isaias Rodriguez, David Hinojosa-Romero +2
The first successful theory of superconductivity was the one proposed by Bardeen, Cooper and Schrieffer in 1957. This breakthrough fostered a remarkable growth of the field that pr…
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…