286 citations · 751 across the 26 of their papers we have counts for
26 papers
Mott resistive switching initiated by topological defects
Alessandra Milloch, Ignacio Figueruelo-Campanero, Wei-Fan Hsu +11
Resistive switching is the fundamental process that triggers the sudden change of the electrical properties in solid-state devices under the action of intense electric fields. Desp…
Confinement-Induced Isosymmetric Metal-Insulator Transition in Ultrathin Epitaxial V2O3 Films
Simon Mellaerts, Claudio Bellani, Wei-Fan Hsu +9
Dimensional confinement has shown to be an effective strategy to tune competing degrees of freedom in complex oxides. Here, we achieved atomic layered growth of trigonal vanadium s…
Enhancement of vortex liquid phase and reentrant behavior in NiBi3 single crystals
V. Rollano, M. C. de Ory, A. Gomez +12
We investigated the vortex phase diagram of needle shaped high quality NiBi3 single crystals by transport measurements. The current is applied along the crystalline b-axis of this…
Coherent control of the orbital occupation driving the insulator-to-metal Mott transition in VO
Paolo Franceschini, Veronica R. Policht, Alessandra Milloch +13
Managing light-matter interactions on timescales faster than the loss of electronic coherence is key for achieving full quantum control of the final products in solid-solid transfo…
Ultrafast loss of lattice coherence in the light-induced structural phase transition of VO
A. S. Johnson, D. Moreno-Mencía, E. B. Amuah +5
In solids, the response of the lattice to photo-excitation is often described by the inertial evolution on an impulsively modified potential energy surface which leads to coherent…
Nanoscale self-organisation and metastable non-thermal metallicity in Mott insulators
Andrea Ronchi, Paolo Franceschini, Andrea De Poli +10
Mott transitions in real materials are first order and almost always associated with lattice distortions, both features promoting the emergence of nanotextured phases. This nanosca…
Realization of macroscopic ratchet effect based on nonperiodic and uneven potentials
V. Rollano, A. Gomez, A. Muñoz-Noval +5
Ratchet devices allow turning an ac input signal into a dc output signal. A ratchet device is set by moving particles driven by zero averages forces on asymmetric potentials. Hybri…
Room temperature Mott metal-insulator transition in V2O3 compounds induced via strain-engineering
P. Homm, M. Menghini, J. W. Seo +2
Vanadium sesquioxide (V2O3) is an archetypal Mott insulator in which the atomic positions and electron correlations change as temperature, pressure or doping are varied giving rise…
Two-dimensional honeycomb-kagome V2O3: a robust room-temperature magnetic Chern insulator interfaced with graphene
Simon Mellaerts, Ruishen Meng, Mariela Menghini +4
The possibility of dissipationless chiral edge states without the need of an external magnetic field in the quantum anomalous Hall effect (QAHE) offers a great potential in electro…
Non-thermal light-assisted resistance collapse in a VO-based Mott-insulator device
Andrea Ronchi, Paolo Franceschini, Pia Homm +7
The insulator-to-metal transition in Mott insulators is the key mechanism for a novel class of electronic devices, belonging to the Mottronics family. Intense research efforts are…
Temporal dynamics of all-optical switching in hybrid VO2/Si waveguides
Jorge Parra, Todora Ivanova, Mariela Menghini +3
Vanadium dioxide (VO2) is one of the most promising materials for developing hybrid photonic integrated devices (PICs). However, despite switching times as low as a few femtosecond…
Little-Parks Effect Governed by Magnetic Nanostructures with Out-of-Plane Magnetization Little-Parks Effect Governed by Magnetic Nanostructures with Out-of-Plane Magnetization
M. C. de Ory, V. Rollano, A. Gomez +4
Little-Parks effect names the oscillations in the superconducting critical temperature as a function of the magnetic field. This effect is related to the geometry of the sample. In…
Vortex dynamics controlled by local superconducting enhancement
V. Rollano, A. Gomez, A. Muñoz-Noval +7
A controlled local enhancement of superconductivity yields unexpected modifications in the vortex dynamics. This local enhancement has been achieved by designing an array of superc…
Early-stage dynamics of metallic droplets embedded in the nanotextured Mott insulating phase of VO
Andrea Ronchi, Pía Homm, Mariela Menghini +10
Unveiling the physics that governs the intertwining between the nanoscale self-organization and the dynamics of insulator-to-metal transitions (\textit{IMT}) is key for controlling…
Ultrafast orbital manipulation and Mott physics in multi-band correlated materials
Andrea Ronchi, Paolo Franceschini, Laura Fanfarillo +12
Multiorbital correlated materials are often on the verge of multiple electronic phases (metallic, insulating, super- conducting, charge and orbitally ordered), which can be explore…
Collapse of the low temperature insulating state in Cr-doped VO thin films
Pía Homm, Leander Dillemans, Mariela Menghini +10
We have grown epitaxial Cr-doped VO thin films with Cr concentrations between and on -AlO by oxygen-assisted molecular beam epitaxy. For the high…
Geometrical confinement effects in layered mesoscopic vortex-matter
N. R. Cejas Bolecek, M. I. Dolz, A. Kolton +7
We study geometrical confinement effects in BiSrCaCuO mesoscopic vortex-matter with edge-to-surface ratio of %. Samples have in-plane square and ci…
Direct visualization of magnetic vortex pinning in superconductors
M. Menghini, R. B. G. Kramer, A. V. Silhanek +6
We study the vortex structure in a Pb film deposited on top of a periodic array of ferromagnetic square microrings by combining two high resolution imaging techniques: Bitter decor…
Type-1.5 Superconductors
V. V. Moshchalkov, M. Menghini, T. Nishio +6
We demonstrate the existence of a novel superconducting state in high quality two-component MgB2 single crystalline superconductors where a unique combination of both type-1 (kappa…
Avalanches and Self-Organized Criticality in Superconductors
Rinke J. Wijngaarden, Marco S. Welling, Christof M. Aegerter +1
We review the use of superconductors as a playground for the experimental study of front roughening and avalanches. Using the magneto-optical technique, the spatial distribution of…
Dynamics of stripe patterns in type-I superconductors subject to a rotating field
M. Menghini, R. J. Wijngaarden
The evolution of stripe patterns in type-I superconductors subject to a rotating in-plane magnetic field is investigated magneto-optically. The experimental results reveal a very r…
Dendritic flux penetration in Pb films with a periodic array of antidots
M. Menghini, R. J. Wijngaarden, A. V. Silhanek +2
We explore the flux-jump regime in type-II Pb thin films with a periodic array of antidots by means of magneto-optical measurements. A direct visualization of the magnetic flux dis…
Melting of 'porous' vortex matter
S. S. Banerjee, A. Soibel, Y. Myasoedov +8
Bitter decoration and magneto-optical studies reveal that in heavy-ion irradiated superconductors, a 'porous' vortex matter is formed when vortices outnumber columnar defects (CDs)…
First order phase transition from the vortex liquid to an amorphous solid
M. Menghini, Yanina Fasano, F. de la Cruz +6
We present a systematic study of the topology of the vortex solid phase in superconducting BiSrCaCuO samples with low doses of columnar defects. A new state…