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Photonics
Volume 4
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10.3390/photonics4010006
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Open AccessArticle

Element Selective Probe of the Ultra-Fast Magnetic Response to an Element Selective Excitation in Fe-Ni Compounds Using a Two-Color FEL Source

by
Eugenio Ferrari
1,2,†,
Carlo Spezzani
1,3,
Franck Fortuna
4,
Renaud Delaunay
5,
Franck Vidal
6,
Ivaylo Nikolov
1,
Paolo Cinquegrana
1,
Bruno Diviacco
1,
David Gauthier
1,
Giuseppe Penco
1,
Primož Rebernik Ribič
1,
Eléonore Roussel
1,
Mauro Trovò
1,
Jean-Baptiste Moussy
7,
Tommaso Pincelli
8,
Lounès Lounis
6,9,
Cristian Svetina
1,10,
Marco Zangrando
1,11,
Nicola Mahne
1,
Lorenzo Raimondi
1,
Michele Manfredda
1,
Emanuele Pedersoli
1,
Flavio Capotondi
1,
Alexander Demidovich
1,
Luca Giannessi
1,12,
Maya Kiskinova
1,
Giovanni De Ninno
1,13,
Miltcho Boyanov Danailov
1,
Enrico Allaria
1,* and
Maurizio Sacchi
6,14,*
1
ELETTRA—Sincrotrone Trieste, Area Science Park, 34149 Trieste, Italy
2
Dipartimento di Fisica, Università degli Studi di Trieste, 34127 Trieste, Italy
3
Laboratoire de Physique des Solides, Université Paris-Sud, CNRS-UMR 8502, Bât. 510, 91405 Orsay, France
4
Centre de Sciences Nucléaires et de Sciences de la Matière, Université Paris-Sud, CNRS UMR 8609, Bât. 104-108, 91405 Orsay, France
5
Laboratoire de Chimie Physique Matière et Rayonnement, Sorbonne Universités, UPMC Univ Paris 06, CNRS UMR 7614, 75005 Paris, France
6
Institut des NanoSciences de Paris, Sorbonne Universités, UPMC Univ Paris 06, CNRS UMR 7588, 75005 Paris, France
7
Service de Physique de l’Etat Condensé, DSM/IRAMIS/SPEC, CNRS UMR 3680, CEA Saclay, 91191 Gif-sur-Yvette, France
8
Dipartimento di Fisica, Università degli Studi di Milano, 20133 Milano, Italy
9
Ecole Normale Supérieure, PSL Research University, 75231 Paris, France
10
Graduate School of Nanotechnology, Università degli Studi di Trieste, 34127 Trieste, Italy
11
Istituto Officina dei Materiali, Consiglio Nazionale delle Ricerche, 34149 Trieste, Italy
12
ENEA, Centro Ricerche Frascati, Via E. Fermi 45, 00044 Frascati, Italy
13
Laboratory of Quantum Optics, University of Nova Gorica, 5001 Nova Gorica, Slovenia
14
Synchrotron SOLEIL, L’Orme des Merisiers, Saint-Aubin, B.P. 48, 91192 Gif-sur-Yvette, France
*
Authors to whom correspondence should be addressed.
†
Current Address: Particle Accelerator Physics Laboratory, École Polytechnique Fédérale de Lausanne, 1015 Lausanne, Switzerland.
Photonics 2017, 4(1), 6; https://doi.org/10.3390/photonics4010006
Received: 18 December 2016 / Revised: 18 January 2017 / Accepted: 20 January 2017 / Published: 26 January 2017
(This article belongs to the Special Issue Extreme UV Lasers: Technologies and Applications)
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Abstract

The potential of the two-color mode implemented at the FERMI free-electron laser (FEL) source for pumping and probing selectively different atomic species has been demonstrated by time-resolved scattering experiments with permalloy (FeNi alloy) and NiFe2O4 samples. We monitored the ultra-fast demagnetization of Ni induced by the pump FEL pulse, by tuning the linearly-polarized FEL probe pulse to the Ni-3p resonance and measuring the scattered intensity in the transverse magneto-optical Kerr effect geometry. The measurements were performed by varying the intensity of the FEL pump pulse, tuning its wavelength to and off of the Fe-3p resonance, and by spanning the FEL probe pulse delays across the 300–900 fs range. The obtained results have evidenced that for the case of NiFe2O4, there is a sensible difference in the magnetic response at the Ni site when the pump pulse causes electronic excitations at the Fe site. View Full-Text
Keywords: free electron laser; two-color source; ultra-fast dynamics free electron laser; two-color source; ultra-fast dynamics
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited
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MDPI and ACS Style

Ferrari, E.; Spezzani, C.; Fortuna, F.; Delaunay, R.; Vidal, F.; Nikolov, I.; Cinquegrana, P.; Diviacco, B.; Gauthier, D.; Penco, G.; Ribič, P.R.; Roussel, E.; Trovò, M.; Moussy, J.-B.; Pincelli, T.; Lounis, L.; Svetina, C.; Zangrando, M.; Mahne, N.; Raimondi, L.; Manfredda, M.; Pedersoli, E.; Capotondi, F.; Demidovich, A.; Giannessi, L.; Kiskinova, M.; De Ninno, G.; Danailov, M.B.; Allaria, E.; Sacchi, M. Element Selective Probe of the Ultra-Fast Magnetic Response to an Element Selective Excitation in Fe-Ni Compounds Using a Two-Color FEL Source. Photonics 2017, 4, 6. https://doi.org/10.3390/photonics4010006

AMA Style

Ferrari E, Spezzani C, Fortuna F, Delaunay R, Vidal F, Nikolov I, Cinquegrana P, Diviacco B, Gauthier D, Penco G, Ribič PR, Roussel E, Trovò M, Moussy J-B, Pincelli T, Lounis L, Svetina C, Zangrando M, Mahne N, Raimondi L, Manfredda M, Pedersoli E, Capotondi F, Demidovich A, Giannessi L, Kiskinova M, De Ninno G, Danailov MB, Allaria E, Sacchi M. Element Selective Probe of the Ultra-Fast Magnetic Response to an Element Selective Excitation in Fe-Ni Compounds Using a Two-Color FEL Source. Photonics. 2017; 4(1):6. https://doi.org/10.3390/photonics4010006

Chicago/Turabian Style

Ferrari, Eugenio; Spezzani, Carlo; Fortuna, Franck; Delaunay, Renaud; Vidal, Franck; Nikolov, Ivaylo; Cinquegrana, Paolo; Diviacco, Bruno; Gauthier, David; Penco, Giuseppe; Ribič, Primož R.; Roussel, Eléonore; Trovò, Mauro; Moussy, Jean-Baptiste; Pincelli, Tommaso; Lounis, Lounès; Svetina, Cristian; Zangrando, Marco; Mahne, Nicola; Raimondi, Lorenzo; Manfredda, Michele; Pedersoli, Emanuele; Capotondi, Flavio; Demidovich, Alexander; Giannessi, Luca; Kiskinova, Maya; De Ninno, Giovanni; Danailov, Miltcho B.; Allaria, Enrico; Sacchi, Maurizio. 2017. "Element Selective Probe of the Ultra-Fast Magnetic Response to an Element Selective Excitation in Fe-Ni Compounds Using a Two-Color FEL Source" Photonics 4, no. 1: 6. https://doi.org/10.3390/photonics4010006

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