13 papers
Scanning Tunneling Microscopy in high vectorial magnetic fields
Jaime Rumeu Ozores, Miguel Ãgueda Velasco, Edwin Herrera +10
The Scanning Tunneling Microscope (STM) is a powerful instrument to study electronic density of states at surfaces down to atomic scale. Many interesting samples require studying v…
Scanning tunneling spectroscopy of superconducting nitridized aluminum thin films
Jose Antonio Moreno, Pablo GarcÃa Talavera, Alba Torras-Coloma +5
Nitride-based superconductors represent a family of superconducting thin film materials displaying higher quality than their corresponding bare superconductor when used in devices…
Robust two-dimensional surface superconductivity and vortex lattice in the Weyl semimetal -PtBi
Jose Antonio Moreno, Pablo García Talavera, Pablo GarcÃa Talavera +11
The layered compound -PtBi is a topological semimetal with Fermi arcs at the surface joining bulk Weyl points. Recent work has found signatures of surface superconductivity…
Surface charge density wave in UTe2
Pablo GarcÃa Talavera, Pablo García Talavera, Miguel Ãgueda Velasco +16
The spatially uniform electronic density characteristic of a metal can become unstable at low temperatures, leading to the formation of charge density waves (CDWs). These CDWs, obs…
Conductance of atomic size contacts of Ag and Au at high magnetic fields
Beilun Wu, Andrés MartÃnez, Paula Obladen +6
Electronic conduction at the atomic scale can be described by Landauer's formalism. In single atom point contacts of noble metals like Au and Ag, there is just one channel open bet…
Direct observation of vortex liquid droplets in the iron pnictide superconductor CaKAsFe at _c$
Oscar Bou Marqués, Oscar Bou Marqués, Jose A. Moreno +10
Type-II superconductors under magnetic fields are in a quantum coherent non-dissipative state as long as vortices remain pinned. Dissipation appears when vortices depin, eventually…