123 citations · 1.3k across the 55 of their papers we have counts for
41 papers · 1 filter
THz mixing of high-order harmonics using nanobridges
Núria Alcalde-Herraiz, Alessia Garibaldi, Karn Rongrueangkul +4
Superconducting materials are a key for technologies enabling a large number of devices including THz wave mixers and single photon detectors, though limited at very low temperatur…
Superpotentials, flat bands and the role of Quantum Geometry for the superfluid stiffness
T. Bauch, F. Lombardi, G. Seibold
Enhancing superconductivity through material design is a central goal in quantum materials research. Moire engineering, where twisting stacked layers creates long-wavelength modula…
Boosting superconductivity in ultrathin YBaCuO films via nanofaceted substrates
Eric Wahlberg, Riccardo Arpaia, Debmalya Chakraborty +7
In cuprate high-temperature superconductors the doping level is fixed during synthesis, hence the charge carrier density per CuO plane cannot be easily tuned by conventional ga…
Misfit layer superconductors, tuneable bulk heterostructures with strong 2D effects
Tomas Samuely, Martin Gmitra, Tristan Cren +2
Atomically thin layered materials are systems with zero limit bulk-to-surface ratio. Their physical properties are determined by two-dimensionality and strongly affected by interfa…
Tuning the ground state of cuprate high-critical-temperature superconducting thin films by nanofaceted substrates
G. Mirarchi, R. Arpaia, E. Wahlberg +7
Anisotropic transport properties have been assessed in a number of cuprate superconductors, providing evidence for a nematic state. Here, we analyze recent experimental data for ul…
Current-phase relation of a short multi-mode Bi2Se3 topological insulator nanoribbon Josephson junction with ballistic transport modes
Ananthu P. Surendran, Domenico Montemurro, Gunta Kunakova +8
We used the asymmetric superconducting quantum interference device (SQUID) technique to extract the current phase relation (CPR) of a Josephson junction with a 3D-topological insul…
Signature of quantum criticality in cuprates by charge density fluctuations
R. Arpaia, L. Martinelli, M. Moretti Sala +17
The universality of the strange metal phase in many quantum materials is often attributed to the presence of a quantum critical point (QCP), a zero-temperature phase transition rul…
Engineering underdoped CuO nanoribbons in nm-thick -axis YBaCuO films
Riccardo Arpaia, Núria Alcalde-Herraiz, Andrea D'Alessio +5
In underdoped cuprate high superconductors, various local orders and symmetry breaking states, in addition to superconductivity, reside in the CuO planes. The…
Doping dependence of the upper critical field in untwinned YBaCuO thin films
E. Wahlberg, R. Arpaia, A. Kalaboukhov +2
We report on measurements of the doping dependence of the upper critical field in 50 nm thick YBaCuO films. The films are untwinned and are characterized…
Mapping the phase diagram of a YBaCuO nanowire through electromigration
Edoardo Trabaldo, Alexei Kalaboukhov, Riccardo Arpaia +3
We use electromigration (EM) to tune the oxygen content of YBaCuO (YBCO) nanowi\-res. During EM, the dopant oxygen atoms in the nanowire are moved under the combine…
Gate-tunable hallmarks of unconventional superconductivity in non-centrosymmetric nanowires
Gyanendra Singh, Claudio Guarcello, Edouard Lesne +8
Two dimensional SrTiO3-based interfaces stand out among non-centrosymmetric superconductors due to their intricate interplay of gate tunable Rashba spin-orbit coupling and multi-or…
Tailoring Superconductivity in Large-Area Single-Layer NbSe2 via Self-Assembled Molecular Adlayers
Francesco Calavalle, Paul Dreher, Ananthu P. Surdendran +11
Two-dimensional transition metal dichalcogenides (TMDs) represent an ideal testbench for the search of materials by design, because their optoelectronic properties can be manipulat…
Topological insulator nanoribbon Josephson junctions: evidence for size effect in transport properties
Gunta Kunakova, Ananthu P. Surendran, Domenico Montemurro +6
We have used BiSe nanoribbons, grown by catalyst-free Physical Vapor Deposition to fabricate high quality Josephson junctions with Al superconducting electrodes. In our dev…
Restored strange metal phase through suppression of charge density waves in underdoped YBaCuO
E. Wahlberg, R. Arpaia, G. Seibold +10
The normal state of optimally doped cuprates is dominated by the "strange metal" phase that shows a linear temperature () dependence of the resistivity persisting down to the lo…
Properties of Grooved Dayem Bridge based YBaCuO Superconducting Quantum Interference Devices and Magnetometers
E. Trabaldo, S. Ruffieux, E. Andersson +7
The transport properties of a YBaCuO superconducting quantum interference device (SQUID) based on grooved Dayem bridge weak links are studied as a function of tempe…
Fabrication and electrical transport characterization of high quality underdoped YBaCuO nanowires
Eric Andersson, Riccardo Arpaia, Edoardo Trabaldo +2
We present the fabrication and electrical transport characterization of underdoped YBaCuO nanowires. The nanowires have been realized without any protective capping…
High transparency Bi2Se3 topological insulator nanoribbon Josephson junctions with low resistive noise properties
Gunta Kunakova, Thilo Bauch, Edoardo Trabaldo +3
BiSe nanoribbons, grown by catalyst-free Physical Vapour Deposition, have been used to fabricate high quality Josephson junctions with Al superconducting electrodes. The co…
SQUID magnetometer based on Grooved Dayem nanobridges and a flux transformer
Edoardo Trabaldo, Christoph Pfeiffer, Eric Andersson +5
We report noise measurements performed on a SQUID magnetometer implementing Grooved Dayem nanobridge of YBCO as weak-links. The SQUID shows magnetic flux noise as low as 10 /…
Untwinned YBaCuO thin films on MgO substrates: a platform to study strain effects on the local orders in cuprates
Riccardo Arpaia, Eric Andersson, Alexei Kalaboukhov +7
We have grown untwinned YBaCuO (YBCO) films on (110) MgO substrates that were pre-annealed at high temperature in oxygen atmosphere. The annealing results in surfac…
Grooved Dayem nanobridges as building blocks of high-performance YBaCuO SQUID magnetometers
Edoardo Trabaldo, Christoph Pfeiffer, Eric Andersson +5
We present noise measurements performed on a YBaCuO nanoscale weak-link-based magnetometer consisting of a Superconducting QUantum Interference Device (SQUID) galva…
Induced unconventional superconductivity on the surface states of BiTe topological insulator
Sophie Charpentier, Luca Galletti, Gunta Kunakova +11
Topological superconductivity is central to a variety of novel phenomena involving the interplay between topologically ordered phases and broken-symmetry states. The key ingredient…
Probing the phase diagram of cuprates with YBaCuO thin films and nanowires
Riccardo Arpaia, Eric Andersson, Edoardo Trabaldo +2
We have grown and characterized 30 nm thick YBaCuO (YBCO) films, deposited by pulsed laser deposition on both MgO (110) and SrTiO (001) substrates, which induce…
Transport properties of ultrathin YBaCuO nanowires: a route to single photon detection
Riccardo Arpaia, Dmitri Golubev, Reza Baghdadi +6
We report on the growth and characterization of ultrathin YBaCuO (YBCO) films on MgO (110) substrates, which exhibit superconducting properties at thicknesses down…
Incipient Berezinskii-Kosterlitz-Thouless transition in two-dimensional coplanar Josephson junctions
D. Massarotti, B. Jouault, V. Rouco +8
Superconducting hybrid junctions are revealing a variety of novel effects. Some of them are due to the special layout of these devices, which often use a coplanar configuration wit…