Revealing 3D magnetization of thin films with soft X-ray tomography: magnetic singularities and topological charges

Autor: A. Hierro-Rodriguez, C. Quirós, A. Sorrentino, L. M. Alvarez-Prado, J. I. Martín, J. M. Alameda, S. McVitie, E. Pereiro, M. Vélez, S. Ferrer

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-8 (2020)

Although magnetic tomography has been used in the past to determine the 3D magnetization of materials its application to thin films remains challenging. Here the authors reconstruct the magnetization of a thin film, enabling the measurement of topolo

Externí odkaz: https://doaj.org/article/427781c2493e40c0b6419f16d455380f

Topological defects in weak perpendicular magnetic anisotropy NdCo honeycomb lattices

Autor: F Valdés-Bango, M Vélez, L M Alvarez-Prado, J I Martín

Publikováno v: New Journal of Physics, Vol 20, Iss 11, p 113007 (2018)

Domain configuration has been studied by magnetic force microscopy and micromagnetic simulations in NdCo honeycomb lattices in comparison with similar patterned structures made of polycrystalline Co. The change in material anisotropy from in-plane to

Externí odkaz: https://doaj.org/article/f164a650375c412b932eb4955a9fe727

Magnetic order and disorder in nanomagnets probed by superconducting vortices

Autor: V. Rollano, L. M. Alvarez-Prado, Elvira M. Gonzalez, M. R. Osorio, José Ignacio Martín, María Vélez, Alicia Gomez, J. del Valle, J. L. Vicent, Carlos Quirós, Daniel Granados

Publikováno v: E-Prints Complutense. Archivo Institucional de la UCM
instname
Repositorio Institucional del Instituto Madrileño de Estudios Avanzados en Nanociencia
Scopus
RUO. Repositorio Institucional de la Universidad de Oviedo
Scientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
E-Prints Complutense: Archivo Institucional de la UCM
Universidad Complutense de Madrid
Scientific Reports

We have studied two nanomagnet systems with strong (Co/Pd multilayers) and weak (NdCo alloy films) stray magnetic fields by probing the out-of-plane magnetic states with superconducting vortices. The hybrid samples are made of array of nanomagnets em

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3e8b9cfeb18aa97cce1b6897b8f05038

Determination of the magnetostrictive atomic environments in FeCoB alloys

Autor: L. M. Alvarez-Prado, Sakura Pascarelli, J. Díaz, C. Quirós, Rocío Ranchal, C. Aroca, M. P. Ruffoni

Publikováno v: Digital.CSIC. Repositorio Institucional del CSIC
instname
Physical Review B, ISSN 1098-0121, 2012-04, Vol. 85, No. 13
Archivo Digital UPM

PACS number(s): 61.05.cj, 61.43.Dq, 75.80.+q, 75.50.Kj.-- et al.
The atomic environments of Fe and Co involved in the magnetostriction effect in FeCoB alloys have been identified by differential extended x-ray fine structure (DiffEXAFS) spectros

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0e9c7c0712f4c757f6189c30f379c23a
https://doi.org/10.1103/physrevb.85.134437

Magnetization reversal processes and interlayer exchange coupling in Gd/sub x/Co/sub 1-x/ bilayers

Autor: Rafael Morales, J. M. Alameda, L. M. Alvarez-Prado, José Ignacio Martín

Publikováno v: IEEE International Digest of Technical Papers on Magnetics Conference.

Summary form only given. Interesting properties and new phenomena are usually found in magnetically heterogeneous systems where different magnetic regions coexist and are magnetically coupled. For example, multilayered structures of some magnetic mat

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::269b6f5d6eccc0720bc230d466a4b961
https://doi.org/10.1109/intmag.2002.1001478