192 citations · 567 across the 16 of their papers we have counts for
17 papers
Annealing effects on the magnetic and magnetotransport properties of iron oxide nanoparticles self-assemblies
Fernando Fabris, Enio Lima, Jorge Martín Nuñez +5
In magnetic tunnel junctions based on iron oxide nanoparticles the disorder and the oxidation state of the surface spin as well as the nanoparticles functionalization play a crucia…
Efficient generation of highly crystalline carbon quantum dots via electrooxidation of ethanol for rapid photodegradation of organic dyes
Santiago D. Barrionuevo, Federico Fioravanti, Jorge M. Nuñez +5
Achieving versatile routes to generate crystalline carbon-based nanostructures has become a fervent pursuit in photocatalysis-related fields. We demonstrate that the direct electro…
Onion-like Fe3O4/MgO/CoFe2O4 magnetic nanoparticles: new ways to control magnetic coupling between soft/hard phases
Jorge M. Nuñez, Simon Hettler, Enio Lima +5
The control of the magnetization inversion dynamics is one of the main challenges driving the design of new nanostructured magnetic materials for magnetoelectronic applications. Na…
Magnetization reversal in FePt thin films: Experiments and simulations
Augusto Román, Agustín Lopez Pedroso, Karim Bouzehouane +6
The competition between shape and perpendicular magnetic anisotropies (PMA) in magnetic thin films gives rise to unusual magnetic behaviors. In ferromagnetic films with moderate PM…
Coexistance of volatile and non-volatile memristive effects in phase-separated LaCaMnO-based devices
G. A. Ramírez, W. Román Acevedo, M. Rengifo +4
In this work, we have investigated the coexistance of volatile and non-volatile memristive effects in epitaxial phase-separated LaCaMnO thin fil…
Nanoscale structural characterization of manganite thin films integrated to silicon correlated with their magnetic and electric properties
Aneely Carrero, Augusto Roman, Myriam Aguirre +1
A detailed nanoscale structural characterization was performed on high-quality La0.66Sr0.33MnO3 (LSMO) thin films of different thicknesses and deposited by pulsed laser deposition…
Strain induced magnetic transition in CaMnO ultra thin films
A. López Pedroso, M. A. Barral, M. E. Graf +4
The effect of high tensile strain and low dimensionality on the magnetic and electronic properties of CaMnO ultrathin films, epitaxially grown on SrTiO substrates, are expe…
Electric selective activation of memristive interfaces in TaO-based devices
C. Ferreyra, M. J. Sánchez, M. Aguirre +5
The development of novel devices for neuromorphic computing and non-traditional logic operations largely relies on the fabrication of well controlled memristive systems with functi…
Nanoscale magnetic and charge anisotropies at manganite interfaces
Santiago J. Carreira, Myriam H. Aguirre, Javier Briatico +1
Strong correlated manganites are still under intense research owing to their complex phase diagrams in terms of the Sr-doping and their sensitivity to intrinsic and extrinsic struc…
Interface-induced anomalous Nernst effect in Fe3O4/Pt-based heterostructures
R. Ramos, T. Kikkawa, A. Anadón +8
We have studied the anomalous Nernst effect (ANE) in [Fe3O4/Pt]-based heterostructures, by measuring the ANE-induced electric field with a magnetic field applied normal to the samp…
Tuning the Interfacial Charge, Orbital and Spin Polarization Properties in La0.67Sr0.33MnO3/ La1-xSrxMnO3 Bilayers
Santiago J. Carreira, Myriam H. Aguirre, Javier Briatico +2
The possibility of controlling the interfacial properties of artificial oxide heterostructures is still attracting researchers in the field of materials engineering. Here, we used…
Terahertz spin currents and inverse spin Hall effect in thin-film heterostructures containing complex magnetic compounds
T. Seifert, U. Martens, S. Günther +20
Terahertz emission spectroscopy of ultrathin multilayers of magnetic and heavy metals has recently attracted much interest. This method not only provides fundamental insights into…
Spin Seebeck effect in Y-type hexagonal ferrite thin films
J. Hirschner, K. Knizek, M. Marysko +6
Spin Seebeck effect (SSE) has been investigated in thin films of two Y-hexagonal ferrites BaZnFeO (Zn2Y) and BaCoFeO (Co2Y) deposite…
Thermoelectric performance of spin Seebeck effect in Fe3O4/Pt-based thin film heterostructures
R. Ramos, A. Anadon, I. Lucas +6
We report a systematic study on the thermoelectric performance of spin Seebeck devices based on Fe3O4/Pt junction systems. We explore two types of device geometries: a spin Hall th…
Electron degeneracy and intrinsic magnetic properties of epitaxial Nb:SrTiO thin-films controlled by defects
A. Sarantopoulos, E. Ferreiro-Vila, V. Pardo +3
We report thermoelectric power experiments in e-doped thin films of SrTiO (STO) which demonstrate that the electronic band degeneracy can be lifted through defect management du…
Observation of huge thermal spin currents in magnetic multilayers
R. Ramos, T. Kikkawa, M. H. Aguirre +11
Thermal spin pumping constitutes a novel mechanism for generation of spin currents; however their weak intensity constitutes a major roadblock for its usefulness. We report a pheno…
Observation of the spin Seebeck effect in epitaxial Fe3O4 thin films
R. Ramos, T. Kikkawa, K. Uchida +8
We report the first experimental observation of the spin Seebeck effect in magnetite thin films. The signal observed at temperatures above the Verwey transition is a contribution f…