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12 results on '"Capotondi F."'

1. Laser-induced ultrafast demagnetization and perpendicular magnetic anisotropy reduction in a Co$_{88}$Tb$_{12}$ thin film with stripe domains

Author

Hennes, Marcel, Merhe, Aladine, Liu, Xuan, Weder, D., Schmising, C, Schneider, M, Günther, C., Mahieu, B., Malinowski, Grégory, Hehn, M., Lacour, D, Capotondi, F, Pedersoli, E, Nikolov, I, Chardonnet, Valentin, Jal, Emmanuelle, Lüning, Jan, Vodungbo, Boris, Laboratoire de Chimie Physique - Matière et Rayonnement (LCPMR), Institut de Chimie du CNRS (INC)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS), Max-Born Institute for Nonlinear Optics and Short Pulse Spectroscopy (MBI), Technische Universität Berlin (TU), Laboratoire d'optique appliquée (LOA), École Nationale Supérieure de Techniques Avancées (ENSTA Paris)-École polytechnique (X)-Centre National de la Recherche Scientifique (CNRS), Institut Jean Lamour (IJL), Université de Lorraine (UL)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), Elettra Sincrotrone Trieste, and ANR-15-CE24-0009,UMAMI,Comprendre les mécanismes de renversement de l'aimantation induit par excitation laser(2015)

Subjects
[PHYS]Physics [physics], Condensed Matter::Materials Science, [PHYS.PHYS]Physics [physics]/Physics [physics], Condensed Matter - Mesoscale and Nanoscale Physics, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), Physics::Optics, FOS: Physical sciences, [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat]
Abstract

We use time-resolved x-ray resonant magnetic scattering (tr-XRMS) at the Co M$_{2,3}$- and Tb O$_1$-edges to study ultrafast demagnetization in an amorphous Co$_{88}$Tb$_{12}$ alloy with stripe domains. Combining the femtosecond temporal with nanometer spatial resolution of our experiment, we demonstrate that the equilibrium spin texture of the thin film remains unaltered by the optical pump-pulse on ultrashort timescales ($

Published
2020
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2. Nonlinear XUV-optical transient grating spectroscopy at the Si L 2,3 –edge

Author

Bohinc, R., Pamfilidis, G., Rehault, J., Radi, P., Milne, C., Szlachetko, J., Bencivenga, F., Capotondi, F., Cucini, R., Foglia, L., Masciovecchio, C., Mincigrucci, R., Pedersoli, E., Simoncig, A., Mahne, N., Cannizzo, A., Frey, H. M., Ollmann, Z., Feurer, T., Maznev, A. A., Nelson, K., and Knopp, G.

Subjects
530 Physics, 500 Science, 620 Engineering
Published
2019
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3. Electron-phonon coupling in the two phonon mode ternary alloy $Al_{0.25}In_{0.75}As/Ga_{0.25}In_{0.75}As$ quantum well

Author

Faugeras, C., Martinez, G., Capotondi, F., Biasiol, G., Sorba, L., Laboratoire des champs magnétiques intenses (LCMI-GHMFL), Centre National de la Recherche Scientifique (CNRS), NEST-INFM (INFM), Istituto Nazionale di Fisica Nucleare (INFN), Dipartimento di Scienze Fisiche, Informatiche e Matematiche [Modena], and Università degli Studi di Modena e Reggio Emilia (UNIMORE)

Subjects
polaron, Condensed Matter - Mesoscale and Nanoscale Physics, GaInAs, electron-phonon interaction, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), FOS: Physical sciences, infrared spectroscopy, Condensed Matter::Mesoscopic Systems and Quantum Hall Effect, [PHYS.COND.CM-MSQHE]Physics [physics]/Condensed Matter [cond-mat]/Mesoscopic Systems and Quantum Hall Effect [cond-mat.mes-hall]
Abstract

We have investigated the infrared transmission of a two-dimensional (2DEG) electron gas confined in a $Al_{0.25}In_{0.75}As/Ga_{0.25}In_{0.75}As$ single quantum well in order to study the electron optical phonon interaction in a two phonon mode system. Infrared transmission experiments have been performed in both the perpendicular Faraday (PF) and tilted Faraday (TF) configurations for which the growth axis of the sample is tilted with respect to the incident light propagation direction and to the magnetic field direction. The experimental results lead to question the validity of the concept of polaron mass in a real material., Comment: 7 pages, 3 figures

Published
2006
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4. Two-dimensional electron gas formation in undoped In[0.75]Ga[0.25]As/In[0.75]Al[0.25]As quantum wells

Author

Capotondi, F., Biasiol, G., Ivana Vobornik, Sorba, L., Giazotto, F., Cavallini, A., Fraboni, B., F. Capotondi, G. Biasiol, I. Vobornik, F. Giazotto, L. Sorba, A. Cavallini, and B. Fraboni

Subjects
Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics, Mesoscale and Nanoscale Physics (cond-mat.mes-hall), Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences
Abstract

We report on the achievement of a two-dimensional electron gas in completely undoped In[0.75]Al[0.25]As/In[0.75]Ga[0.25]As metamorphic quantum wells. Using these structures we were able to reduce the carrier density, with respect to reported values in similar modulation-doped structures. We found experimentally that the electronic charge in the quantum well is likely due to a deep-level donor state in the In[0.75]Al[0.25]As barrier band gap, whose energy lies within the In[0.75]Ga[0.25]As/In[0.75]Al[0.25]As conduction band discontinuity. This result is further confirmed through a Poisson-Schroedinger simulation of the two-dimensional electron gas structure., Comment: 17 pages, 6 figures, to be published in J. Vac. Sci. Technol. B

Published
2004
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6. Fermi@elettra status report

Author

Allaria, E., Bencivenga, F., Callegari, C., Capotondi, F., Castronovo, D., Cinquegrana, P., Cudin, I., Dal Forno, M., Danailov, M. B., D Auria, G., Monte, R., Ninno, G., Demidovich, A., Di Mitri, S., Diviacco, B., Fabris, A., Fabris, R., Fawley, W. M., Ferianis, M., Ferrari, E., Froehlich, L., Furlan Radivo, P., Gaio, G., Giannessi, L., Kiskinova, M., Lonza, M., Mahieu, B., Mahne, N., Masciovecchio, C., Fulvio Parmigiani, Penco, G., Predonzani, M., Principi, E., Raimondi, L., Rossi, F., Rumiz, L., Scafuri, C., Serpico, C., Sigalotti, P., Spampinati, S., Spezzani, C., Svandrlik, M., Svetina, C., Trovo, M., Vascotto, A., Veronese, M., Visintini, R., Zangrando, D., Zangrando, M., and Craievich, P.

7. Fermi seeded FEL progress report

Author

Svandrlik, M., Allaria, E., Bencivenga, F., Callegari, C., Capotondi, F., Castronovo, D., Cinquegrana, P., Cudin, I., Dal Forno, M., Danailov, M. B., D Auria, G., Monte, R., Ninno, G., Demidovich, A., Di Mitri, S., Diviacco, B., Fabris, A., Fabris, R., Fawley, W. M., Ferianis, M., Ferrari, E., Finetti, P., Froehlich, L., Radivo, P. F., Gaio, G., Luca Giannessi, Kiskinova, M., Loda, G., Lonza, M., Mahne, N., Masciovecchio, C., Parmigiani, F., Penco, G., Plekan, O., Predonzani, M., Principi, E., Raimondi, L., Rossi, F., Rumiz, L., Scafuri, C., Serpico, C., Sigalotti, P., Spampinati, S., Spezzani, C., Sturari, L., Svetina, C., Trovo, M., Vascotto, A., Veronese, M., Visintini, R., Zangrando, D., Zangrando, M., Mahieu, B., Craievich, P., IPAC 2013, M., Svandrlik, E., Allaria, F., Bencivenga, C., Callegari, F., Capotondi, D., Castronovo, P., Cinquegrana, P., Craievich, I., Cudin, G., D'Auria, DAL FORNO, Massimo, M. B., Danailov, R., De Monte, G., De Ninno, A. A., Demidovich, S., Di Mitri, B., Diviacco, A., Fabri, R., Fabri, W. M., Fawley, M., Feriani, Ferrari, Eugenio, P., Finetti, L., Fröhlich, P., Furlan Radivo, G., Gaio, L., Giannessi, M., Kiskinova, G. L., Loda, M., Lonza, B., Mahieu, N., Mahne, C., Masciovecchio, Parmigiani, Fulvio, G., Penco, O., Plekan, M., Predonzani, E., Principi, L., Raimondi, F., Rossi, L., Rumiz, C., Scafuri, C., Serpico, P., Sigalotti, S., Spampinati, C., Spezzani, L., Sturari, C., Svetina, M., Trovò, A., Vascotto, M., Veronese, R., Visintini, D., Zangrando, and M., Zangrando

Subjects
FEL
Abstract

FERMI, the seeded Free Electron Laser (FEL) located at the Elettra laboratory in Trieste, Italy, welcomed in December 2012 the first external users on the FEL-1 line. This line is based on a single stage of High Gain Harmonic Generation (HGHG), seeded by a UV laser, and covers wavelengths between 80 and 20 nm. The photon energy reached more than 300 J. The second FEL line, FEL-2, covering the lower wavelength range between 20 and 4 nm thanks to a double stage cascaded HGHG scheme, has generated its first coherent photons in October 2012. The latter is the first experimental demonstration of a seeded free electron laser configured as a two-stage cascade operating in the "fresh bunch injection” mode, where the second stage is seeded by the light produced by the first stage. This paper describes the status of the operation and user experiments with FEL-1 and reports about the progress in the commissioning of FEL-2.

8. Status of the fermi@elettra project

Author

Svandrlik, M., Allaria, E., Badano, L., Bassanese, S., Bencivenga, F., Busetto, E., Callegari, C., Capotondi, F., Castronovo, D., Coreno, M., Craievich, P., Cudin, I., Dal Forno, M., Danailov, M. B., D Auria, G., Monte, R., Demidovich, A., Ninno, G., Di Fraia, M., Di Mitri, S., Diviacco, B., Fabris, A., Fabris, R., Fawley, W. M., Ferianis, M., Ferrari, E., Fröhlich, L., Furlan Radivo, P., Gaio, G., Gobessi, R., Grazioli, C., Karantzoulis, E., Kiskinova, M., Lonza, M., Mahieu, B., Masciovecchio, C., Noè, S., Parmigiani, F., Penco, G., Principi, E., Rossi, F., Rumiz, L., Scafuri, C., Spampinati, S., Spezzani, C., Svetina, C., Trovò, M., Vascotto, A., Veronese, M., Visintini, R., Zaccaria, M., Zangrando, D., Zangrando, M., Luca Giannessi, IPAC2012, M., Svandrlik, E., Allaria, L., Badano, S., Bassanese, F., Bencivenga, E., Busetto, C., Callegari, F., Capotondi, D., Castronovo, M., Coreno, P., Craievich, I., Cudin, DAL FORNO, Massimo, M. B., Danailov, G., D'Auria, R., De Monte, A., Demidovich, G., De Ninno, DI FRAIA, Michele, S., Di Mitri, B., Diviacco, A., Fabri, R., Fabri, W. M., Fawley, M., Feriani, Ferrari, Eugenio, L., Fröhlich, P., Furlan Radivo, G., Gaio, R., Gobessi, Grazioli, Cesare, E., Karantzouli, M., Kiskinova, M., Lonza, B., Mahieu, C., Masciovecchio, Noe', Salvatore, Parmigiani, Fulvio, G., Penco, E., Principi, F., Rossi, L., Rumiz, C., Scafuri, S., Spampinati, C., Spezzani, C., Svetina, M., Trovò, A., Vascotto, M., Veronese, R., Visintini, M., Zaccaria, D., Zangrando, M., Zangrando, and L., Giannessi

Subjects
FEL

9. Commissioning and initial operation of FEZRMI@ELETTRA

Author

Di Mitri, S., Allaria, E., Appio, R., Badano, L., Bassanese, S., Bencivenga, F., Borga, A., Bossi, M., Busetto, E., Callegari, C., Capotondi, F., Casarin, K., Castronovo, D., Cinquegrana, P., Cocco, D., Cornacchia, M., Craievich, P., Cucini, R., Cudin, I., Dal Forno, M., D Amico, F., D Auria, G., Danailov, M. B., Delgiusto, P., Demidovich, A., Monte, R., Ninno, G., Diviacco, B., Fabris, A., Fabris, R., Fawley, W., Ferianis, M., Ferrari, E., Ferry, S., Froehlich, L., Furlan Radivo, P., Karantzoulis, E., Kiskinova, M., Gaio, G., Gelmetti, F., Giannessi, L., Gobessi, R., Ivanov, R., Lonza, M., Lutman, A., Mahieu, B., Masciovecchio, C., Menk, R. H., Milloch, M., Musardo, M., Noe, S., Nikolov, I., Parmigiani, F., Pavlovic, L., Emanuele Pedersoli, Penco, G., Petronio, M., Predonzani, M., Principi, E., Quai, E., Quondam, G., Rossi, F., Rumiz, L., Scafuri, C., Serpico, C., Sigalotti, P., Spampinati, S., Spezzani, C., Svandrlik, M., Svetina, C., Trovo, M., Vascotto, A., Veronese, M., Visintini, R., Zaccaria, M., Zangrando, D., Zangrando, M., Wang, D., Alagia, M., Avaldi, L., Coreno, M., Feyer, V., Kivimaki, A., Bolognesi, P., Simone, M., O Keeffe, P., Devetta, M., Mazza, T., Piseri, P., Prince, K., Richter, R., Sergo, R., Stranges, S., Lyamayev, V., Ovcharenko, Y., Sjostrom, M., Biedron, S., and Milton, S.

10. Jitter-free time resolved resonant cdi experiments using two-color fel pulses generated by the same electron bunch

Author

Zangrando, M., Giannessi, L., Allaria, E., Bencivenga, F., Capotondi, F., Castronovo, D., Cinquegrana, P., Danailov, M. B., Demidovich, A., Di Mitri, S., Diviacco, B., Fawley, W. M., Ferrari, E., Froehlich, L., Ivanov, R., Kiskinova, M., Mahieu, B., Mahne, N., Masciovecchio, C., Nikolov, I., Pedersoli, E., Penco, G., Raimondi, L., Serpico, C., Sigalotti, P., Spampinati, S., Spezzani, C., Svetina, C., Trovo, M., Gauthier, D., Ninno, G., and Daniele Fausti

12. Ultrafast Demagnetization by Extreme Ultraviolet Light

Author

Philippi-Kobs, Andre, Berntsen, M. H., Pedersoli, E., Manfredda, M., Kiskinova, M., Ziaja, B., Oepen, H. P., Grübel, G., Leonard Müller, Roseker, W., Riepp, M., Bagschik, K., Wagner, J., Frömter, R., Danilov, M., and Capotondi, F.

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