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Muñoz Noval, Álvaro ; Salas Colera, E. ; Bartolomé Izquierdo, Pablo ; Serrano, A. ; Castro, G. R. ; Ranchal Sánchez, Rocío | Elsevier Science SA | 2017-12-05We report on the evolution of the microstructure of Tb-Fe-Ga films deposited by co-sputtering from Tb_(33)Fe_(67) and Fe_(72)Ga_(28) targets. The sputtering power was fixed (90 W) in the Fe_(72)Ga_(28) whereas it was increased from 50 to 90 W in[...]texto impreso
Manzano, Cristina V. ; Serrano, Aída ; Muñoz Noval, Álvaro ; Fernández, José F. ; Martín González, Marisol | Pergamon-Elsevier Science Ltd | 2020-10-10ZnO has been widely studied in the last decades as an n-type semiconductor due to its wide application range, for example, in optoelectronics, solar cells, light-emitting diodes, thermoelectrics, amongst others. The material efficiency for certa[...]texto impreso
Muñoz Noval, Álvaro ; Ordóñez Fontes, A. ; Ranchal Sánchez, Rocío | American Physical Society | 2016-06-07In this paper we analyze the structure of Fe-Ga layers with a Ga content of ?30 at.% deposited by the sputtering technique under two different regimes. We also studied the correlation between the structure and magnetic behavior of the samples. K[...]texto impreso
Ory, M.C. de ; Rollano, V. ; Gómez, A. ; Menghini, M. ; Muñoz Noval, Álvaro ; González Herrera, Elvira María ; Vicent López, José Luis | Nature Publishing Group | 2020-06-25Little-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 this work, we show that this effect can be enhanced and manipula[...]texto impreso
Local and medium range order influence on the magnetic behavior of sputtered ga-rich fega thin films
Muñoz Noval, Álvaro ; Salas Colera, E. ; Ranchal Sánchez, Rocío | American Chemical Society | 2019-05-23We have investigated the influence of the growth power on the structural properties of Fe_100_(-x)Ga_x (x ca. 29) films sputtered in the ballistic regime in the oblique incidence. By means of different structural characterizations, mainly X-ray [...]texto impreso
Azcondo, M. Teresa ; Orfila, María ; Marugán, Javier ; Sanz Martín, Raúl ; Muñoz Noval, Álvaro ; Salas Colera, Eduardo ; Ritter, Clemens ; García Alvarado, Flaviano ; Amador, Ulises | Wiley-V C H Verlag Gmbh | 2019-07-08Materials with the formula Sr_2CoNb_1-xTi_xO_(6-delta) (x=1.00, 0.70; delta=number of oxygen vacancies) present a cubic perovskite-like structure. They are easily and reversibly reduced in N_2 or Ar and re-oxidized in air upon heating. Oxidation[...]texto impreso
Muñoz Noval, Álvaro ; Fin, S. ; Salas Colera, E. ; Bisero, D. ; Ranchal Sánchez, Rocío | Elsevier Science SA | 2018-05-15In this work we show the development of bulk in-plane magnetic anisotropy in high Ga-content (Ga = 28 at. %) Fe_(100-x)Ga_x thin films as the layer thickness increases. This result is in clear contrast with the generally reported decrease of thi[...]texto impreso
Rollano, V. ; Muñoz Noval, Álvaro ; Gómez, A. ; Valdés Bango, F. ; Martín, J.I. ; Vélez, M. ; Osorio, M. R. ; Granados, D. ; González Herrera, Elvira María ; Vicent López, José Luis | IOP publishing ltd | 2019-06-14We have designed, fabricated and tested a robust superconducting ratchet device based on topologically frustrated spin ice nanomagnets. The device is made of a magnetic Co honeycomb array embedded in a superconducting Nb film. This device is bas[...]texto impreso
Bartolomé, Pablo ; Begué, A ; Muñoz Noval, Álvaro ; Ciria, M. ; Ranchal Sánchez, Rocío | American Chemical Society | 2020-02-27The aim of this work is to clarify how in-plane magnetic anisotropy and magnetoelasticity depend on the thickness of Ga-rich FeGa layers. Samples with an Fe72Ga28 composition were grown by sputtering in the ballistic regime in oblique incidence.[...]texto impreso
Rollano, V. ; Muñoz Noval, Álvaro ; Valle, J. del ; Menghini, M. ; Ory, M. C. de ; Prieto, J. L. ; Navarro Palma, Elena ; González Herrera, Elvira María ; Vicent López, José Luis | IOP Publishing Ltd. | 2019-11-29A controlled local enhancement of superconductivity yields unexpected modifications in the vortex dynamics. This local enhancement has been achieved by designing an array of superconducting Nb nanostructures embedded in a V superconducting film.[...]
