178 citations · 507 across the 19 of their papers we have counts for
19 papers
Magnetic domains reconfiguration on the Fe3O4(110) surface across the Verwey transition by Spin-Polarized Low-Energy Electron Microscopy
C. Gutiérrez-Cuesta, A. Mandziak, J. E. Prieto +6
We have studied the (110) surface of FeO single crystals by means of spin-polarized low-energy electron microscopy (SPLEEM). After preparation by sputtering and annealing a…
A Platform for Addressing Individual Magnetite Islands Grown Epitaxially on Ru(0001) and Manipulating Their Magnetic Domains
Sandra Ruiz-Gómez, Eva María Trapero, Claudia Fernández-González +8
We have grown high-quality magnetite micrometric islands on ruthenium stripes on sapphire through a combination of magnetron sputtering (Ru film), high-temperature molecular beam e…
Tuning the Néel temperature in an antiferromagnet: the case of NixCo1-xO microstructures
Anna Mandziak, Guiomar D. Soria, José Emilio Prieto +6
We show that it is possible to tune the Néel temperature of nickel(II)-cobalt(II) oxide films by changing the Ni to Co ratio. We grow single crystalline micrometric triangular isla…
Size effects in the Verwey transition of nanometer-thick micron-wide magnetite crystals
Adolfo del Campo, Sandra Ruiz-Gómez, Eva M. Trapero +6
We have monitored the Verwey transition in micrometer-wide, nanometer-thick magnetite islands on epitaxial Ru films on Al2O3(0001) using Raman spectroscopy. The islands have been g…
Growth and characterization of ultrathin cobalt ferrite films on Pt(111)
G. D. Soria, K. Freindl, J. E. Prieto +5
CoFe2O4 thin films (5 nm and 20 nm thick) were grown by oxygen assisted molecular beam epitaxy on Pt(111) at 523~K and subsequently annealed at 773 K in vacuum or oxygen. They were…
Magnetic domain wall pinning in cobalt ferrite microstructures
Sandra Ruiz-Gómez, Anna Mandziak, Laura Martín-García +7
A detailed correlative structural, magnetic and chemical analysis of non-stoichiometric cobalt ferrite micrometric crystals was performed by x-ray magnetic circular dichroism combi…
Dynamics of Li deposition on epitaxial graphene/Ru(0001) islands
J. E. Prieto, M. A. González-Barrio, E. García-Martín +3
Li metal has been deposited on the surface of a Ru(0001) single crystal containing patches of monolayer-thick epitaxial graphene islands. The use of low-energy electron microscopy…
RBS/Channeling characterization of Ru(0001) and thin epitaxial Ru/AlO(0001) films
J. E. Prieto, E. M. Trapero, P. Prieto +4
Thin epitaxial films of metals on insulating substrates are essential for many applications, as conducting layers, in magnetic devices or as templates for further growth. In this w…
Influence of the growth conditions on the magnetism of SrFeO thin films and the behavior of Co / SrFeO bilayers
G. D. Soria, J. F. Marco, A. Mandziak +11
SrFeO (SFO) films grown on Si (100) substrates by radio-frequency magnetron sputtering have been characterized in terms of composition, structural and magnetic proper…
Magnetism of epitaxial Tb films on W(110) studied by spin-polarized low-energy electron microscopy
J. E. Prieto, Gong Chen, A. K. Schmid +1
Thin epitaxial films of Tb metal were grown on a clean W(110) substrate in ultra-high vacuum and studied in-situ by low-energy electron microscopy. Annealed films present magnetic…
Order-disorder phase transition on the (100) surface of magnetite
Norman C. Bartelt, Shu Nie, Elena Starodub +5
Using low-energy electron diffraction, we show that the room-temperature reconstruction of FeO(100) reversibly disorders at 450 $^…
Real Space Imaging of the Verwey Transition at the (100) Surface of Magnetite
Juan de la Figuera, Zbynek Novotny, Martin Setvin +8
Effects of the Verwey transition on the (100) surface of magnetite were studied using scanning tunelling microscopy and spin polarized low-energy electron microsccopy. On cooling t…
Micromagnetism in (001) magnetite by spin-polarized low-energy electron microscopy
Juan de la Figuera, Lucía Vergara, Alpha T. N'Diaye +2
Spin-polarized low-energy electron microscopy was used to image a magnetite crystal with (100) surface orientation. Sets of spin-dependent images of magnetic domain patterns observ…
Initial Stages of FeO Growth on Ru(0001)
Irene Palacio, Matteo Monti, Jose F. Marco +2
We study how FeO wüstite films on Ru(0001) grow by oxygen-assisted molecular beam epitaxy at elevated temperatures (800-900 K). The nucleation and growth of FeO islands are observe…
Hydrogen-induced reversible spin-reorientation transition and magnetic stripe domain phase in bilayer Co on Ru(0001)
Benito Santos, Silvia Gallego, Arantzazu Mascaraque +5
Imaging the change in the magnetization vector in real time by spin-polarized low-energy electron microscopy, we observed a hydrogen-induced, reversible spin-reorientation transiti…
Magnetism in nanometer-thick magnetite
Matteo Monti, Benito Santos, Arantzazu Mascaraque +7
The oldest known magnetic material, magnetite, is of current interest for use in spintronics as a thin film. An open question is how thin can magnetite films be and still retain th…
Real Space Observations of Magnesium Hydride Formation and Decomposition
T. Herranz, K. F. McCarty, B. Santos +2
The mechanisms of magnesium hydride formation and thermal decomposition are directly examined using in-situ imaging.
How metal films de-wet substrates - identifying the kinetic pathways and energetic driving forces
Kevin F. McCarty, John C. Hamilton, Yu Sato +8
We study how single-crystal chromium films of uniform thickness on W(110) substrates are converted to arrays of three-dimensional (3D) Cr islands during annealing. We use low-energ…
Dislocation Emission around Nanoindentations on a (001) fcc Metal Surface Studied by STM and Atomistic Simulations
O. Rodriguez de la Fuente, J. A. Zimmerman, M. A. Gonzalez +4
We present a combined study by Scanning Tunneling Microscopy and atomistic simulations of the emission of dissociated dislocation loops by nanoindentation on a (001) fcc surface. T…