31 citations · 103 across the 13 of their papers we have counts for
13 papers
Superconducting density of states and vortex lattice of LaRuP observed by Scanning Tunneling Spectroscopy
Marta Fernández-Lomana, Paula Obladen Aguilera, Beilun Wu +3
We provide the superconducting density of states of the iron based superconductor LaRu2P2 (Tc= 4.1 K), measured using millikelvin Scanning Tunneling Microscopy. From the tunneling…
Gapless superconductivity from extremely dilute magnetic disorder in 2H-NbSe2-xSx
Jose Antonio Moreno, Mercè Roig, Víctor Barrena +14
Most superconducting materials exhibit a vanishing density of states at the Fermi level and Anderson's theorem posits that the superconducting gap is robust against nonmagnetic dis…
Well-posedness of Heat Equations with Nonlinearities of Arbitrarily Rapid Growth
Yohei Fujishima, Kotaro Hisa, Robert Laister
We address local- and global-in-time well-posedness of the Cauchy problem for nonlinear heat equations without imposing growth rate restrictions on the nonlinearity a priori. Our r…
Conductance of atomic size contacts of Ag and Au at high magnetic fields
Beilun Wu, Andrés Martínez, 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…
The feedback driven atomic scale Josephson microscope
Samuel D. Escribano, Víctor Barrena, David Perconte +10
The ultimate spatial limit to establish a Josephson coupling between two superconducting electrodes is an atomic-scale junction. The Josephson effect in such ultrasmall junctions h…
Superconducting density of states and bandstructure at the surface of the candidate topological superconductor Au2Pb
Francisco Martín-Vega, Edwin Herrera, Beilun Wu +8
The electronic bandstructure of AuPb has a Dirac cone which gaps when undergoing a structural transition into a low temperature superconducting phase. This suggests that the su…
Band structure, superconductivity and polytypism in AuSn
Edwin Herrera, Beilun Wu, Evan O'Leary +13
The orthorhombic compound AuSn4 is compositionally similar to the Dirac node arc semimetal PtSn. AuSn is, contrary to PtSn, superconducting with a critical temperature…
Simplified feedback control system for Scanning Tunneling Microscopy
Francisco Martín-Vega, Víctor Barrena, Raquel Sánchez-Barquilla +18
A Scanning Tunneling Microscope (STM) is one of the most important scanning probe tools available to study and manipulate matter at the nanoscale. In a STM, a tip is scanned on top…
Large magnetoresistance in the iron-free pnictide superconductor LaRuP
Marta Fernández-Lomana, Víctor Barrena, Beilun Wu +5
The magnetoresistance of iron pnictide superconductors is often dominated by electron-electron correlations and deviates from the H or saturating behaviors expected for uncorre…
Anisotropic superconductivity and Fermi surface reconstruction in the spin-vortex antiferromagnetic superconductor CaK(FeNi)As
José Benito Llorens, Edwin Herrera, Víctor Barrena +9
High critical temperature superconductivity often occurs in systems where an antiferromagnetic order is brought near by slightly modifying pressure or doping. CaKFeAs$_4…
Linear nonsaturating magnetoresistance in the Nowotny chimney ladder compound RuSn
Beilun Wu, Víctor Barrena, Federico Mompeán +3
We present magnetoresistivity measurements in high-quality single crystals of the Nowotny chimney ladder compound RuSn. We find a linear and nonsaturating magnetoresistance…
Huge linear magnetoresistance due to open orbits in -PtBi
Beilun Wu, Víctor Barrena, Hermann Suderow +1
Some single-crystalline materials present an electrical resistivity which decreases between room temperature and low temperatures at zero magnetic field as in a good metal and swit…
Vortex liquid phase in the p-wave ferromagnetic superconductor UCoGe
Beilun Wu, Dai Aoki, Jean-Pascal Brison
The upper critical field for field along the b-axis of the p-wave ferromagnetic superconductor UCoGe has a particular S-shape, akin to the re-entrant superconducting phase of URhGe…